Method, specific apparatus, and program

Abstract

We will have ships on standby to repair offshore wind power generation facilities, enabling us to respond quickly to repairs. [Solution] The system includes a waiting step of having a ship F for repairing offshore wind power generation equipment wait at a waiting area B.

Description

[Technical Field]

[0001] The present disclosure relates to a method, a specific apparatus, and a program. [Background Art]

[0002] Conventionally, the reduction in business cost achieved by introducing leased equipment and installment sale equipment has been appropriated for the payment and settlement of leases and loans. Patent Literature 1 discloses that: the current business cost, in which equipment introduced to reduce business cost is used, is subtracted from the past business cost to calculate a monthly business cost reduction amount; the monthly business cost reduction amount is integrated to calculate a settlement available amount; and a predetermined amount to be appropriated for the payment of the fee for the equipment is subtracted from the settlement available amount for each predetermined period to calculate a settlement available amount balance. [Prior Art Document] [Patent Literature]

[0003] [Patent Literature 1] Japanese Unexamined Patent Application Publication No. 2001-325416 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] However, Patent Literature 1 does not contemplate ships.

[0005] The present disclosure has been made in view of the above circumstances. (1) One aspect of the present disclosure has an object to quickly respond to the repair of offshore wind power generation equipment by keeping a ship for repairing the offshore wind power generation equipment on standby. (2) Alternatively, one aspect of the present disclosure has an object to identify the profit obtained by an offshore wind power generation business operator by quickly responding to the repair of offshore wind power generation equipment. [Means for Solving the Problem]

[0006] A method according to one aspect of this disclosure is characterized by comprising a waiting step of having a vessel for repairing offshore wind power generation equipment wait at a waiting location.

[0007] A specific device according to one aspect of the present disclosure is characterized by comprising a specific means for identifying the profits that an operator of an offshore wind power generation facility will obtain by having a ship for repairing the offshore wind power generation facility wait at a waiting location. [Effects of the Invention]

[0008] According to this disclosure, (1) one aspect of this disclosure can provide a method for enabling a rapid response to the repair of offshore wind power facilities by having a vessel on standby for the repair of offshore wind power facilities. (2) Or, one aspect of this disclosure can provide an identification device that can identify the benefits that an offshore wind power operator can obtain by rapidly responding to the repair of offshore wind power facilities. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram showing offshore wind power generation facilities, etc., to which the method and specific device 30 disclosed herein are applied. [Figure 2] This is a flowchart illustrating the method according to the embodiment. [Figure 3] This is a schematic block diagram showing the configuration of the specific device 30 according to the embodiment. [Figure 4] This figure V shows the compensation received by offshore equipment maintenance company M. [Modes for carrying out the invention]

[0010] Hereinafter, with reference to the drawings, a specific apparatus, method, and program according to one embodiment of this disclosure will be described.

[0011] [Offshore wind power generation facility 1, base port B, dedicated work vessel F] Figure 1 is a schematic diagram showing an offshore wind power generation facility 1 to which the method and specific apparatus 30 of this disclosure are applied. The offshore wind power generation facility 1 includes a wind turbine, a tower, a substructure, etc. The wind turbine has multiple blades 11, a hub, and a nacelle. The offshore wind power generation facility 1 generates electricity by transmitting the rotation of its blades 11 to a generator. The electricity generated by the offshore wind power generation facility 1 is transmitted to other offshore wind power generation facilities 1 or to land-based power transmission and distribution facilities via a submarine cable 15 connected to the offshore wind power generation facility 1.

[0012] In the operation of offshore wind power generation facility 1, it is important to carry out maintenance work efficiently and quickly to avoid a decrease in operating rate. In particular, the occurrence of malfunctions or accidents requiring large-scale repairs is expected to necessitate a long-term shutdown of power generation, which poses a significant risk to the operator of offshore wind power generation facility 1 (hereinafter referred to as offshore wind power operator J). In other words, offshore wind power operator J may suffer losses in the form of a disruption in revenue (electricity sales revenue) due to a long-term shutdown of power generation. For this reason, offshore wind power operator J has taken out insurance such as business interruption insurance and business interruption insurance to compensate for losses in the event that power generation stops. Furthermore, large-scale repairs refer to cases where large vessels (dedicated work vessels F), such as SEP vessels F1 or crane vessels, are required as work vessels for the repair of offshore wind power generation facilities 1. In other words, large-scale repairs mainly refer to repair work on offshore wind power generation facilities 1 (wind turbines, towers, and substructures) and submarine cables 15.

[0013] Major large-scale repairs anticipated for offshore wind power generation facility 1 include, for example, the replacement of blades 11, main shaft bearings, speed increasers, generators, etc. A SEP vessel F1 or similar will be required for these replacements. The SEP vessel F1 (Self-Elevating Platform) is a special type of workboat equipped with jackable legs, used for tasks such as installing bottom-fixed wind turbines. The SEP vessel F1 can perform stable work at sea by lowering its legs to the seabed and jacking up the hull during operation. In addition, in water depths where jacking up with the SEP vessel F1 is difficult, the work is carried out while maintaining the vessel's position using a DPS (Dynamic Positioning System) that can maintain an accurate position without being affected by waves. Examples of water depths where jacking up with the SEP vessel F1 is difficult include the water depth in the area where the floating offshore wind power generation facility 1 is to be installed.

[0014] Major large-scale repairs anticipated for submarine cable 15 include removing damaged sections of cable 15, inserting new cable, and restoring the cable, as well as removing damaged sections of cable and laying new cable. When replacing submarine cable 15, a cable repair vessel such as F2 will be required. The cable repair vessel F2 is a ship used for laying, repairing, and retrieving power cables and information and communication cables. The cable repair vessel F2 is used for laying cables between wind turbines and from wind turbines to land. Cable repair vessels F2 include, for example, communication cable repair vessels and power transmission cable repair vessels. Power transmission cable repair vessels are few in number because they require a high cable loading capacity. Cable repair vessels F2 also include SEP vessels F1 and barges equipped with cable repair equipment.

[0015] The dedicated work vessel F (a vessel for repairing offshore wind power generation equipment 1) may be a vessel other than the SEP vessel F1 or the cable repair vessel F2. For example, other dedicated work vessels F may include heavy lifting vessels, underwater survey vessels, etc. Heavy-lift vessels are used to transport long and heavy objects. They are primarily used to transport parts of wind turbines (large spare parts) to port facilities such as storage yards or to work sites. The underwater survey vessel is used to check the condition of submarine cables for damage and repair using survey equipment such as ROVs, and for seabed surveys of the planned jacking-up site for the SEP vessel F1.

[0016] Sufficient consideration is required when selecting a special work vessel F such as a SEP vessel F1 or a cable repair vessel F2. It is necessary to select the optimal special work vessel F according to the content of the repair work, the location conditions of the wind power generation equipment 1 (such as the distance from the land), the base port B (port), the navigation route, and the like. For example, when replacing large heavy objects such as blades, it is also necessary to consider the layout plan of the SEP vessel F1 and the like in advance in consideration of the lifting weight, lifting height, and working radius.

[0017] For large-scale repair of offshore wind power generation equipment 1, selection and procurement of a special work vessel F are required. However, the number (the number of vessels) of special work vessels F such as SEP vessels F1 or cable repair vessels F2 is small. For example, the number of SEP vessels F1 is overwhelmingly insufficient relative to the number of offshore wind power generation facilities 1 that are operated or planned in Japan. For this reason, even when chartering a special work vessel F such as a SEP vessel F1 or a cable repair vessel F2, it takes a long time to procure the vessel. In addition, since the number of special work vessels F is small, the cost for chartering tends to be high. Therefore, when carrying out large-scale repair work, it is recommended to always grasp the trends in the registration status and operation status of special work vessels F, and prepare in advance so that the work can be carried out urgently and at an early stage.

[0018] Furthermore, it also takes a long time to procure materials and the like necessary for restoration. For example, it takes a long time to manufacture the blades 11 of the offshore wind power generation equipment 1 and the submarine cable 15. For this reason, when carrying out large-scale repair work, it is also recommended to store these necessary materials as spare parts 20 in advance. Such spare parts 20 can be said to be, for example, spare parts used for repairing the offshore wind power generation equipment 1.

[0019] As described above, the offshore wind power generation business operator J has several important issues regarding the large-scale repair of the offshore wind power generation equipment 1. That is, the offshore wind power generation business operator J has the following important issues.

[0020] (1) Shortage of special work vessels F The number of specialized work vessels F, such as the SEP vessel F1, is small, and it may take one to two years or more to charter one. Therefore, there are concerns that the restoration of offshore wind power generation facility 1 will be delayed, resulting in a prolonged power generation shutdown (downtime). Furthermore, the limited number of dedicated work vessels F makes chartering them prone to high costs. Additionally, after securing and arranging a dedicated work vessel F, a repair plan (construction plan) tailored to that vessel must be formulated. This makes it difficult to carry out repair work immediately and quickly, contributing to prolonged power plant shutdowns.

[0021] (2) Inefficiency of owning our own assets Although it is recommended to store materials necessary for large-scale repairs in advance as spare parts 20, it is inefficient for offshore wind power operator J to possess and store a sufficient amount of spare parts. It is also inefficient for offshore wind power operator J to possess and store specialized work vessels F such as SEP vessel F1. In particular, if the number of offshore wind power generation facilities 1 installed in the same sea area is small, the storage and mooring costs become high relative to the frequency of major repairs, resulting in significant inefficiency. Furthermore, there is a high risk that suitable storage locations or mooring sites for spare parts 20 such as large blades 11 and submarine cables 15 will not be found. Not only offshore wind power generation operators J, but also component manufacturers such as cable manufacturers face challenges in maintaining and storing spare parts.

[0022] (3) Soaring insurance premiums (risk management costs) Securing chartered vessels such as SEP vessel F1 and cable repair vessel F2 is uncertain, and there are risks in possessing spare parts 20, leading to soaring insurance premiums for business interruption insurance, property insurance, etc. Alternatively, offshore wind power operator J may need to increase its contingency fund. The contingency fund is, for example, the cost of repairing the aging deterioration of offshore wind power equipment 1, which is not covered by property insurance. The contingency fund is, for example, the cost that offshore wind power operator J sets aside to prepare for troubles (unforeseen circumstances) that may occur at offshore wind power equipment 1. Furthermore, interest rates on project finance for offshore wind power generation projects are also trending upwards. Insurance premiums, contingency funds, and other risk management expenses, as well as project finance repayment costs, represent a significant burden for offshore wind power operator J in operating offshore wind power facility 1. The soaring cost of insurance premiums, which are part of risk mitigation expenses, is a challenge not only for offshore wind power generation company J but also for insurance companies. Here, the insurance premium is, for example, the premium that offshore wind power generation company J pays for offshore wind power generation equipment 1. Risk mitigation costs may include the cost of storing spare parts 20 used for repairing offshore wind power generation equipment 1 by offshore wind power operator J, the cost of formulating a construction plan for repairing offshore wind power generation equipment 1, and the chartering costs of a dedicated work vessel F (e.g., SEP vessel chartering costs, cable repair vessel chartering costs). For example, risk mitigation costs may include at least one of the following: insurance premiums, contingency funds, the cost of storing spare parts 20 used for repairing offshore wind power generation equipment 1 by offshore wind power operator J, the cost of formulating a construction plan for repairing offshore wind power generation equipment 1, and the chartering costs of a dedicated work vessel F.

[0023] 〔method〕 Figure 2 is a flowchart illustrating the method according to the embodiment. This disclosure method addresses important issues related to large-scale repairs faced by offshore wind power generation operators J, etc., by having a third party, separate from offshore wind power generation operators J, etc., possess and store dedicated work vessels F such as SEP vessel F1 and spare parts such as submarine cables 15.

[0024] For example, offshore equipment maintenance company M, which performs maintenance work on offshore wind power generation equipment 1 on behalf of offshore wind power generation operator J, parts manufacturers, insurance companies, etc., owns and stores a dedicated work vessel F and spare parts 20. Then, when offshore wind power generation equipment 1 requires major repairs, offshore equipment maintenance company M provides or lends the dedicated work vessel F and spare parts 20 to offshore wind power generation operator J at J's request.

[0025] The method according to the embodiment includes a waiting step S1, a identification step S2, a calculation step S3, and a display step S4. Although the method according to the embodiment includes these four steps, the method according to this disclosure may omit some or all of the three steps of identification step S2, calculation step S3, and display step S4. In the method according to the embodiment, the offshore wind power generation facility 1 is one or more, and can be single or multiple. For example, multiple offshore wind power generation facilities 1 include a first offshore wind power generation facility 1A and a second offshore wind power generation facility 1B. An offshore wind power operator (offshore wind power operator J) for multiple offshore wind power generation facilities 1 (first offshore wind power generation facility 1A, second offshore wind power generation facility 1B) can be one or more, and may be a single operator or multiple operators. For example, multiple offshore wind power operator J may include offshore wind power operator J1 and offshore wind power operator J2. For example, a single offshore wind power operator J may own one (one site) offshore wind power generation facility 1, or it may own two (two or more) offshore wind power generation facilities 1.

[0026] (Waiting step S1) In standby step S1, a dedicated work vessel F for repairing the offshore wind power generation facility 1 (the first offshore wind power generation facility 1A and the second offshore wind power generation facility 1B) is stationed at a standby location such as base port B. The dedicated work vessel F stationed at the standby location such as base port B in standby step S1 includes a SEP vessel F1 and a cable repair vessel F2. The standby location is not limited to a port such as base port B. Furthermore, even if the standby location is a port, it may be a port different from base port B. The owner of SEP vessel F1 and cable repair vessel F2 is offshore equipment maintenance company M. Offshore equipment maintenance company M owns and manages dedicated work vessels F, such as SEP vessel F1 and cable repair vessel F2, for the purpose of leasing them to one or more (one or more) offshore wind power generation operators J (offshore wind power generation operator J1, offshore wind power generation operator J2). Offshore equipment maintenance company M may also own and manage dedicated work vessels F other than SEP vessel F1 and cable repair vessel F2.

[0027] Furthermore, in standby step S1, materials necessary for major repairs to the offshore wind power generation facility 1 may be stored as spare parts 20. The storage location is preferably near the base port B, but is not limited to that. In other words, it is preferable to store the blades 11 and submarine cables 15 of the offshore wind power generation facility 1 as spare parts 20 near the base port B. The submarine cables 15 (power transmission cables) that are spare parts 20 correspond, for example, to the distance between the first offshore wind power generation facility 1A and the second offshore wind power generation facility 1B, or to the length over which damage is expected. Note that cables other than the submarine cables 15 (power transmission cables other than the submarine cables 15) may also be included in the spare parts 20. In this case as well, for example, the cables may correspond to the distance between the first offshore wind power generation facility 1A and the second offshore wind power generation facility 1B, or the cables may correspond to the length over which damage is expected. The manager of spare parts 20, such as blades 11 and submarine cables 15, is also offshore equipment maintenance company M. Offshore equipment maintenance company M owns and manages specialized work vessels F, such as SEP vessel F1 and cable repair vessel F2, for leasing to one or more (one or more) offshore wind power operators J (offshore wind power operator J1, offshore wind power operator J2). During major repairs to the offshore wind power generation facility 1, spare parts 20 are loaded onto a dedicated work vessel F that is kept on standby in standby step S1. However, spare parts 20 do not necessarily have to be loaded onto the dedicated work vessel F.

[0028] As described above, in the standby step S1 according to the embodiment, the offshore wind power generation operator J requests the offshore equipment maintenance company M to have the dedicated work vessel F on standby at the standby location. In other words, the offshore wind power generation operator J has the dedicated work vessel F on standby at the standby location through the mediation of the offshore equipment maintenance company M. However, the disclosure is not limited to this form, and the offshore wind power generation operator J may have the dedicated work vessel F on standby at the standby location directly (without the mediation of the offshore equipment maintenance company M). The same applies to the spare parts 20.

[0029] (Specific step S2) The identification step S2 identifies the profits that each offshore wind power operator J will receive by having the dedicated work vessel F stand by in the standby step S1. The identification step S2 is carried out using the identification device 30 described later. In the identification step S2, a computer identifies the aforementioned profits. First, in the identification step S2, the profit that offshore wind power operator J will gain by having the dedicated work vessel F on standby in the standby step S1 is determined based on the amount by which the risk mitigation costs borne by offshore wind power operator J for offshore wind power generation facility 1 are reduced. Here, the amount by which risk mitigation costs are reduced may be the amount by which risk mitigation costs are reduced between the case where standby step S1 is performed and the dedicated work vessel F is kept on standby, and the case where standby step S1 is not performed and the dedicated work vessel F is not kept on standby. In this embodiment, risk mitigation costs may include insurance premiums paid by the offshore wind power operator J for the offshore wind power facility 1. In this case, in the identification step S2, the benefit that the offshore wind power operator J gains by having the dedicated work vessel F on standby in the standby step S1 is determined based on the amount by which the insurance premiums paid by the offshore wind power operator J for the offshore wind power facility 1 are reduced. The insurance premiums (such as loss compensation insurance and business interruption insurance) that offshore wind power operator J pays to insurance companies for large-scale repairs differ depending on whether J can reliably borrow a dedicated work vessel F from offshore equipment maintenance company M (i.e., having the dedicated work vessel F on standby) or whether J arranges for the dedicated work vessel F itself (i.e., not having the dedicated work vessel F on standby). The risk of being able to reliably lease vessel F from offshore equipment maintenance company M is significantly smaller than the risk of offshore wind power operator J arranging its own dedicated work vessel F. If J can reliably lease dedicated work vessel F from offshore equipment maintenance company M, the power generation shutdown period can be kept to the absolute minimum. In contrast, if offshore wind power operator J arranges its own dedicated work vessel F, the power generation shutdown period becomes uncertain, and the risk changes as described above. For example, in this case, the specific device 30 identifies the difference (the amount by which insurance premiums are reduced, the amount by which risk mitigation costs are reduced) between the insurance premium that offshore wind power generation operator J pays to the insurance company, etc. when J can reliably rent a dedicated work vessel F from offshore equipment maintenance company M, and the insurance premium that J pays to the insurance company, etc. when J arranges for the dedicated work vessel F itself. This allows the offshore wind power operator J to identify the benefit it will receive in specific step S2, based on the amount by which the risk mitigation costs, including insurance premiums paid by the offshore wind power operator J for the offshore wind power facility 1, are reduced. In this case, the amount by which insurance premiums are reduced is the amount between the case where standby step S1 is performed and the dedicated work vessel F is kept on standby, and the case where standby step S1 is not performed and the dedicated work vessel F is not kept on standby.

[0030] Here, the insurance premium may vary depending on, for example, the type of vessel that is kept on standby in standby step S1. For example, the loss of electricity sales due to damage to the submarine cable 15 tends to be high. Therefore, for example, if the vessel kept on standby in standby step S1 is a cable repair vessel F2, the insurance premium may be lower than if the vessel kept on standby in standby step S1 is a SEP vessel F1. In this case, the amount by which the insurance premium is reduced in specific step S2 may be the amount between the case in which waiting step S1 is implemented and cable repair vessel F2 is kept on standby, and the case in which waiting step S1 is not implemented and cable repair vessel F2 is not kept on standby. Furthermore, the amount by which the insurance premium is reduced in specific step S2 may be the amount between the case in which waiting step S1 is implemented and cable repair vessel F2 is kept on standby, and the case in which waiting step S1 is implemented and SEP vessel F1 is kept on standby.

[0031] In this embodiment, risk mitigation costs may include the aforementioned contingency fund. In this case, in specific step S2, the profit that offshore wind power operator J will gain by having the dedicated work vessel F stand by in standby step S1 is determined based on the amount by which the contingency fund is reduced. The reserve fund that offshore wind power operator J sets aside to prepare for troubles that may occur at offshore wind power generation facility 1 differs, similar to insurance premiums, depending on whether J can reliably borrow a dedicated work vessel F from offshore facility maintenance company M (i.e., if dedicated work vessel F is kept on standby) or whether J arranges for dedicated work vessel F itself (i.e., if dedicated work vessel F is not kept on standby). For example, in this case, the specified device 30 identifies the difference (the amount by which the contingency fund is reduced, the amount by which risk mitigation costs are reduced) between the contingency fund when J can reliably rent a dedicated work vessel F from the offshore equipment maintenance company M and the contingency fund when J arranges for the dedicated work vessel F itself. This allows the offshore wind power operator J to identify the profit it will gain in specific step S2 based on the amount by which the reserve fund is reduced. In this case, the amount by which the reserve fund is reduced is the difference between the case where standby step S1 is performed and the dedicated work vessel F is kept on standby, and the case where standby step S1 is not performed and the dedicated work vessel F is not kept on standby.

[0032] In this embodiment, risk mitigation costs may include the cost of storing spare parts 20 used for repairing the offshore wind power generation equipment 1 by the offshore wind power generation operator J. In this case, in the identification step S2, the profit that the offshore wind power generation operator J will gain by having the dedicated work vessel F on standby in the standby step S1 is determined based on the amount by which the cost of storing spare parts 20 used for repairing the offshore wind power generation equipment 1 by the offshore wind power generation operator J is reduced. The cost of storing spare parts 20 used for repairing offshore wind power generation equipment 1 differs depending on whether the offshore equipment maintenance company M stores them or the offshore wind power generation operator J stores them itself. The costs for storing spare parts 20 include not only the cost of spare parts 20 themselves, but also the costs of transporting spare parts 20, warehousing costs, warehousing insurance, etc. If offshore wind power operator J stores the spare parts 20 for the offshore wind power equipment 1 itself, then offshore wind power operator J must store all of the spare parts 20 required for major repairs. In contrast, offshore equipment maintenance company M stores spare parts 20 for multiple offshore wind power operators J, making it possible to optimize the number and quantity of spare parts depending on the presence or absence of common parts and the frequency of major repairs. For example, identify the difference between the cost incurred by offshore wind power generation operator J to store spare parts 20 itself and the cost incurred by offshore equipment maintenance company M to store spare parts 20. This allows us to identify the benefit that offshore wind power operator J will gain in specific step S2, based on the amount by which the cost of storing spare parts 20 used for repairing the offshore wind power generation equipment 1 is reduced. In this case, the amount by which the cost of storage is reduced is the amount by which the cost of storage is reduced between the case in which offshore equipment maintenance company M stores the parts and the case in which offshore wind power operator J stores the parts itself.

[0033] Here, the spare parts storage cost, which is the cost of storing spare parts 20, may vary depending on the type of spare part, for example. For example, the spare parts storage cost may vary depending on the area required for storage and the heavy machinery used for storage and transportation. For example, the spare parts storage cost will be higher when the spare part is a cable compared to when the spare part is a different type of spare part. Therefore, for example, when the spare part is a cable, the spare parts storage cost may be higher than when the spare part is a spare part other than a cable. In this case, the amount by which the spare parts storage costs are reduced in a specific step S2 may be the amount by which the spare parts storage costs are reduced between the case where the spare parts are cables and the case where the spare parts are spare parts other than cables.

[0034] In this embodiment, risk mitigation costs may include the costs of formulating a construction plan for repairing the offshore wind power generation facility 1. In this case, in the specific step S2, the profit that the offshore wind power generation operator J will gain by having the dedicated work vessel F on standby in the standby step S1 is determined based on the amount by which the costs of formulating a construction plan for repairing the offshore wind power generation facility 1 are reduced. The cost of formulating a repair plan for offshore wind power generation facility 1 differs depending on whether the dedicated work vessel F can be reliably rented from offshore facility maintenance company M (i.e., dedicated work vessel F is kept on standby) or whether the offshore wind power generation operator J arranges for the dedicated work vessel F itself (i.e., dedicated work vessel F is not kept on standby). The costs of developing a construction plan include personnel costs, construction survey costs, etc. If offshore wind power operator J arranges its own dedicated work vessel F, it cannot determine the specifications and capabilities of the vessel until its arrangement is confirmed. As a result, a construction plan can only be formulated a long time after major repairs become necessary. Consequently, losses from selling electricity increase. Furthermore, the dedicated work vessel F that is arranged may not be suitable for the major repairs, and if only an over-specified vessel F can be secured, vessel costs and other expenses will increase. To anticipate such situations, risk mitigation costs will also increase. In contrast, if a dedicated work vessel F can be reliably leased from offshore equipment maintenance company M, the specifications and capabilities of the dedicated work vessel F are already determined, allowing for the formulation of a large-scale repair plan in advance. This minimizes the loss of electricity sales. Furthermore, since a dedicated work vessel F suitable for large-scale repairs can be arranged, costs such as vessel expenses and construction survey expenses can be kept to a minimum. Consequently, risk mitigation costs can also be reduced. For example, we will identify the difference between the cost incurred when offshore wind power generation operator J arranges its own dedicated work vessel F and then formulates a construction plan, and the cost incurred when J reliably leases the dedicated work vessel F from offshore equipment maintenance company M and then formulates a construction plan. This allows the offshore wind power operator J to identify the profit it will gain in specific step S2 based on the amount by which the cost of formulating a construction plan for repairing the offshore wind power generation facility 1 is reduced. In this case, the amount by which the cost of formulating a construction plan is reduced is the amount by which the cost of formulating a construction plan is reduced between the case in which standby step S1 is carried out and the dedicated work vessel F is kept on standby, and the case in which standby step S1 is not carried out and the dedicated work vessel F is not kept on standby.

[0035] Furthermore, in step S2, profits may be identified based on indicators or information different from risk mitigation costs. For example, in step S2, the profits that offshore wind power operator J can obtain by having the dedicated work vessel F on standby in standby step S1 may be identified based on the profits that offshore wind power operator J can obtain by executing the offshore wind power facility 1 project. The profits that offshore wind power operator J can obtain by executing the offshore wind power generation facility 1 project differ depending on whether J can reliably lease a dedicated work vessel F from offshore facility maintenance company M, or whether J arranges for the dedicated work vessel F itself. The profits from the offshore wind power generation facility 1 project include the revenue from selling electricity generated by the offshore wind power generation facility 1, minus the costs of regular maintenance, repairs during major renovations, and interest payments on the project finance for the offshore wind power generation business. If offshore wind power operator J arranges its own dedicated work vessel F, the extended power outage period during major repairs will result in increased losses. The interest rate on the project finance for the offshore wind power project will also be higher, leading to increased interest payments. In contrast, if J can reliably lease the dedicated work vessel F from offshore equipment maintenance company M, the power outage period during major repairs will be shorter, minimizing losses. Furthermore, in this case, the interest rate on the project finance for the offshore wind power project will be lower, reducing interest payments. For example, identify the difference between the losses and interest payments incurred when offshore wind power generation operator J arranges its own dedicated work vessel F, and the losses and interest payments incurred when J develops a construction plan that ensures it leases the dedicated work vessel F from offshore equipment maintenance company M. This allows the specific step S2 to identify the profit that offshore wind power operator J will gain by having the dedicated work vessel F on standby in standby step S1, based on the profit that J will gain by executing the offshore wind power generation facility 1 project. In this case, for example, the profit that offshore wind power operator J will gain by having the dedicated work vessel F on standby in standby step S1 may be identified based on the difference in project profits obtained between the case in which standby step S1 is performed and the dedicated work vessel F is put on standby, and the case in which standby step S1 is not performed and the dedicated work vessel F is not put on standby.

[0036] Here, the profits obtained from the offshore wind power generation facility 1 project described above are the profits obtained after the project is completed. However, the profits obtained from the offshore wind power generation facility 1 project may include profits obtained during the startup phase (opportunity profits), and furthermore, the profits obtained from the offshore wind power generation facility 1 project may be profits obtained during the startup phase instead of profits obtained after the project is completed. For example, if having the dedicated work vessel F on standby in standby step S1 is a prerequisite for the project (e.g., a mandatory or optional condition), then the benefit that offshore wind power operator J gains by having the dedicated work vessel F on standby in standby step S1 is that offshore wind power operator J has the opportunity to launch the offshore wind power facility 1 project, and can obtain opportunity benefits such as securing project financing or being selected in a public tender. Such opportunity benefits can be evaluated, for example, by multiplying the funds procured through project finance by a predetermined percentage. In the identification step S2, based on such opportunity benefits, the profit that offshore wind power operator J can obtain by having the dedicated work vessel F on standby in the standby step S1 can be identified. In this case, in the identification step S2, the profit that offshore wind power operator J can obtain by having the dedicated work vessel F on standby in the standby step S1 can also be identified based on the difference between the opportunity benefits and the profit when no opportunity is obtained (for example, when the profit is 0).

[0037] Furthermore, the method for identifying profit in a specific step S2 may be one of the methods described above, or a combination of these methods may be used. Moreover, the method for identifying profit in a specific step S2 is not limited to the methods described above.

[0038] (Calculation step S3) Calculation step S3 calculates a portion of the profit identified in identification step S2 as compensation for keeping the dedicated work vessel F on standby in standby step S1. Calculation step S3 is performed using the identification device 30 described later. In calculation step S3, the computer calculates a portion of the profit as the aforementioned compensation. In calculation step S3, a portion of the profits earned by the offshore wind power generation operator J is calculated as compensation to the offshore equipment maintenance company M. In this case, regardless of the type of profit identified in specific step S2, a portion of the profit may be kept the same (the same percentage is multiplied by the profit to determine the compensation), and this may be used to calculate the compensation for keeping the dedicated work vessel F on standby in standby step S1. For example, a fixed percentage of the profit may be uniformly multiplied and used to calculate the compensation for the offshore equipment maintenance company M.

[0039] Furthermore, depending on the type of profit identified in step S2, a portion of the profit may be varied (the percentage multiplied by the profit to determine the compensation) and calculated as compensation for keeping the dedicated work vessel F on standby in step S1. As mentioned above, the types of profits identified in specific step S2 include, for example, insurance premiums, spare parts storage costs, repair work planning costs, and project execution profits (profits from successful project financing). Of these, for example, for profits with a large profit improvement rate, a large portion of that profit improvement rate is calculated as compensation to the offshore equipment maintenance company M. For example, for profits with a small profit improvement rate, the percentage used to calculate the compensation is smaller than the percentage used for profits with a large profit improvement rate, and this is calculated as compensation to the offshore equipment maintenance company M. Alternatively, for profits that arise over the long term, the percentage used to calculate the consideration is relatively small and is used as the consideration for offshore equipment maintenance company M. For example, for profits that arise over the short term, the percentage used to calculate the consideration is relatively large (larger than the percentage used for profits that arise over the long term) and is used as the consideration for offshore equipment maintenance company M. For example, among the aforementioned insurance premiums, spare parts storage costs, repair work planning costs, and project execution profits, the proportion used to calculate the consideration may be higher for project execution profits and insurance premiums, while the proportion used to calculate the consideration may be lower for spare parts storage costs and repair work planning costs.

[0040] (Display step S4) Figure 4 is a diagram showing image V, which displays the compensation received by offshore equipment maintenance company M. In the display step S4, the output unit 33 displays the profit that the offshore wind power generation operator J will obtain by having the dedicated work vessel F on standby in the standby step S1, which was identified in the identification step S2. In this embodiment, the display step S4 displays the consideration for having the dedicated work vessel F on standby in the standby step S1, which was calculated in the calculation step S3, as profit. This consideration can be said to indirectly represent the profit, and the display step S4 indirectly displays the profit by displaying the consideration. However, in the display step S4, the profit may be displayed directly instead of displaying the consideration, or both the consideration and the profit may be displayed in a way that makes the correspondence between them understandable. Furthermore, when the consideration is displayed in the display step S4, the percentage used to calculate the consideration from the profit may be displayed together with the consideration and in association with the consideration. Here, displaying a percentage in correspondence with consideration may mean, for example, displaying it in a manner that makes it recognizable that the percentage corresponds to the consideration calculated based on that percentage, or displaying it in a manner that does not lead to the misconception that the percentage corresponds to consideration that is not calculated based on that percentage (other consideration). Display step S4 is performed using a specific device 30, which will be described later. In other words, the payment to the offshore equipment maintenance company M is displayed on the output unit 33 of the specific device 30, or printed from the output unit 33. Display step S4 is performed by the computer outputting (displaying) the profit on the output unit 33 (display unit).

[0041] In display step S4, the following four items are displayed and printed as compensation to the offshore equipment maintenance company M: for example, insurance premiums, spare parts storage costs, repair work planning costs, and project execution profits, along with the corresponding compensation amounts (profit amounts). For example, the compensation to the offshore equipment maintenance company M may be displayed as a table chart so that the compensation amounts (profits) corresponding to the four items mentioned above can be compared. As shown in Figure 4, the specific device 30 displays an image V on its output unit 33, showing the compensation received by the offshore equipment maintenance company M. Image V displays offshore wind power generation business operator information "JJJ" and "KKK", and offshore wind power generation equipment information "111" and "222". These are, for example, identification information (ID) for identifying offshore wind power generation business operator J and offshore wind power generation equipment 1. Furthermore, image V displays insurance premiums W1 "aaa [yen]" and "eee [yen]", spare parts storage costs W2 "bbb [yen]" and "fff [yen]", repair work plan formulation costs W3 "ccc [yen]" and "ggg [yen]", and project execution profits W4 "ddd [yen]" and "hhh [yen]" in a table chart format, allowing for comparison by business operator, equipment, and profit item. These are, for example, the compensation (profit) corresponding to each item. The compensation (profit) received by offshore equipment maintenance company M may be displayed using various graphs (bar graph, line graph, pie chart) instead of a table chart.

[0042] [Specific device 30] Figure 3 is a schematic block diagram showing the configuration of the specific device 30 according to the embodiment. Of the methods according to the above-described embodiment, the identification step S2, the calculation step S3, and the display step S4 are performed using the identification device 30. However, only some of these steps may be performed using the identification device 30. The specific device 30 is configured using information devices such as smartphones, tablets, personal computers, and dedicated equipment. The specific device 30 includes a communication unit 31, an input unit 32, an output unit 33, a storage unit 34, and a control unit 35.

[0043] The communication unit 31 is a communication device. The communication unit 31 may be configured, for example, as a network interface. The communication unit 31 communicates data with other devices via the network N in accordance with the control of the control unit 35. The communication unit 31 may be a device that performs wireless communication or a device that performs wired communication.

[0044] The input unit 32 is configured using existing input devices such as a keyboard, pointing device (mouse, tablet, etc.), buttons, and touch panel. The input unit 32 is operated by the user when inputting user instructions to the specific device 30. The input unit 32 may be an interface for connecting an input device to a specific device 30. In this case, the input unit 32 inputs the input signal generated in the input device in response to the user's input to the specific device 30. The input unit 32 may be configured using a microphone and a speech recognition device. In this case, the input unit 32 acquires an acoustic signal generated by the user's speech, performs speech recognition on the words spoken by the user, and inputs the recognized string information to the identification device 30. The speech recognition process may be performed by the control unit 35. The input unit 32 may be configured in any way as long as it is capable of inputting user instructions to the specific device 30.

[0045] The output unit 33 (notification unit, display unit) outputs (notifies, displays) the payment to the offshore equipment maintenance company M in a format that the user can recognize. The output unit 33 may be, for example, a device that displays images, such as a liquid crystal display or an organic EL (Electro-Luminescence) display. The output unit 33 may also be an interface for connecting the image display device to the specific device 30. In this case, the output unit 33 generates a video signal for displaying image data and outputs (displays) the video signal to the image display device connected to it. The output unit 33 may be a device that prints characters or images, such as a printer. The output unit 33 may also be an interface for connecting a printing device, such as a printer, to the specific device 30. In this case, the output unit 33 generates a print signal for reproducing print data and outputs the print signal to the printing device connected to it. The output unit 33 may be a device that outputs (plays) sound, such as a speaker. The output unit 33 may also be an interface for connecting an audio output device, such as a speaker or headphones, to the specific device 30. In this case, the output unit 33 generates an audio signal for playing audio data and outputs the audio signal to the audio output device connected to it. The output unit 33 can be configured in any way that allows it to output the payment to the offshore equipment maintenance company M in a manner that is recognizable to the user. For example, the output unit 33 may be configured as a touch panel integrated with the input unit 32.

[0046] The storage unit 34 is configured using a storage device such as a magnetic hard disk drive or a semiconductor storage device. The storage unit 34 stores data used by the control unit 35. The storage unit 34 stores data necessary when the control unit 35 performs processing. The memory unit 34 stores, for example, information necessary to identify the benefits that offshore wind power operator J will gain by having the dedicated work vessel F stand by in the standby step S1 (information necessary for the identification step S2). The memory unit 34 may also store, for example, information for determining the amount by which the risk mitigation costs borne by offshore wind power operator J for the offshore wind power facility 1 will be reduced, or for example, information for determining the benefits that offshore wind power operator J will gain by executing the offshore wind power facility 1 project. The memory unit 34 stores, for example, information necessary to calculate a portion of the profit identified in the specific step S2 as compensation for keeping the dedicated work vessel F on standby in the standby step S1 (information necessary for the calculation step S3). The memory unit 34 may also store, for example, a percentage to be multiplied by the profit in order to determine the compensation. Specifically, the memory unit 34 stores information such as the specifications and capabilities of a dedicated work vessel F owned by the offshore equipment maintenance company M. The memory unit 34 also stores information such as the location and spare parts of multiple offshore wind power generation facilities 1 (e.g., the first offshore wind power generation facility 1A, the second offshore wind power generation facility 1B). The above-mentioned information may be stored in the storage unit 34 beforehand, or it may be stored in the storage unit 34 after being input from the input unit 32.

[0047] The control unit 35 is composed of a processor such as a CPU (Central Processing Unit) and memory (main memory). The control unit 35 functions as a locating means 35a, a calculation means 35b, and a display means 35c when the processor executes a program. In other words, the specific device 30 comprises a specific means 35a, a calculation means 35b, and a display means 35c. All or part of the functions of the control unit 35 may be implemented using hardware such as an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array). The above program may be recorded on a computer-readable recording medium. Computer-readable recording media include, for example, portable media such as flexible disks, magneto-optical disks, ROMs, CD-ROMs, and semiconductor storage devices (e.g., SSDs: Solid State Drives), as well as storage devices such as hard disks and semiconductor storage devices built into computer systems. The above program may be transmitted via a telecommunications line.

[0048] The control unit 35 may, for example, execute an application installed on its own device (specific device 30). A specific example of such an application is an application provided to the specific device 30 as a dedicated application for executing the method according to this embodiment. This application program causes its own device (specific device 30) to execute the identification step S2, the calculation step S3, and the display step S4. Another concrete example of such an application is a web browser application. Such an application may be pre-installed on the specific device 30, or it may be downloaded each time a determination process is executed. For example, if it is implemented as a web browser application, the specific device 30 may download and execute the application from a device specified by the web server (for example, the web server itself or another server) when the specific device 30 connects to a specific web server. The control unit 35 operates according to the program of the application that is running. Such an application may operate using, for example, SaaS (Software as a Service).

[0049] The identification means 35a performs the identification step S2 described above. That is, the identification means 35a identifies the profit that each offshore wind power generation operator J will receive when the offshore equipment maintenance company M has a dedicated work vessel F on standby at the base port B. The identifying means 35a may identify the benefit that offshore wind power operator J gains from having offshore equipment maintenance company M keep a dedicated work vessel F on standby at base port B, based on the amount by which the risk mitigation costs borne by offshore wind power operator J for offshore wind power equipment 1 are reduced. The risk mitigation costs may include at least one of the following: insurance premiums paid by offshore wind power operator J for offshore wind power equipment 1; contingency funds set aside by offshore wind power operator J to prepare for troubles occurring at offshore wind power equipment 1; costs for offshore wind power operator J to store spare parts 20 used for repairs to offshore wind power equipment 1; and costs for formulating a construction plan for repairs to offshore wind power equipment 1. For example, the identifying means 35a may identify the benefit that offshore wind power operator J will gain from having offshore equipment maintenance company M keep a dedicated work vessel F on standby at base port B, based on the amount by which the insurance premiums paid by offshore wind power operator J for offshore wind power equipment 1 are reduced. For example, the identifying means 35a may identify the benefit that offshore wind power operator J will gain from having offshore equipment maintenance company M keep a dedicated work vessel F on standby at base port B, based on the amount by which the reserve fund that offshore wind power operator J sets aside to prepare for troubles that occur at offshore wind power generation equipment 1 is reduced. For example, the identifying means 35a may identify the benefit that offshore wind power operator J gains from offshore equipment maintenance company M having a dedicated work vessel F on standby at base port B, based on the amount by which the cost of storing spare parts 20 used for repairing the offshore wind power equipment 1 is reduced for offshore wind power operator J. For example, the identifying means 35a may identify the benefit that offshore wind power operator J will gain by having offshore equipment maintenance company M keep a dedicated work vessel F on standby at base port B, based on the amount by which the cost of formulating a construction plan for repairing the offshore wind power generation equipment 1 is reduced. Furthermore, the identifying means 35a may identify the profits that offshore wind power operator J can obtain by having offshore equipment maintenance company M keep a dedicated work vessel F on standby at base port B, based on the profits that offshore wind power operator J can obtain by executing the offshore wind power generation facility 1 project.

[0050] The calculation means 35b performs the calculation step S3 described above. The calculation means 35b calculates a portion of the profit identified by the identification means 35a as compensation for the offshore equipment maintenance company M to keep the dedicated work vessel F on standby at the base port B. The calculation means 35b may calculate the amount as compensation for the offshore equipment maintenance company M to keep its dedicated work vessel F on standby at base port B, regardless of the type of profit identified by the identification means 35a, by keeping a portion of the profit the same. Furthermore, the calculation means 35b may calculate the compensation for the offshore equipment maintenance company M to keep its dedicated work vessel F on standby at base port B, by varying the proportion of a portion of the profit according to the type of profit identified by the identification means 35a.

[0051] The display means 35c performs the display step S4 described above. The display means 35c displays the profit identified by the identification means 35a on the output unit 33 or prints it from the output unit 33, and displays the payment to the offshore equipment maintenance contractor M calculated by the calculation means 35b on the output unit 33 or prints it from the output unit 33. Display means 35c displays, in a table chart (see Figure 4), the compensation paid to the offshore equipment maintenance company M, for example, insurance premiums, spare parts storage costs, repair work planning costs, and project execution profits, and the profit amounts corresponding to these four items, so that they can be compared. Display means 35c may also display the compensation paid to the offshore equipment maintenance company M in various graphs (bar graph, line graph, pie chart).

[0052] As explained above, this disclosure can provide a method for promptly responding to repairs on the offshore wind power generation facility 1 by having a dedicated work vessel F on standby for repairing the offshore wind power generation facility 1. Furthermore, it can provide a identifying device 30 that can identify the profits that the offshore wind power generation operator J will obtain by promptly responding to the repairs on the offshore wind power generation facility 1.

[0053] Prior agreement between offshore wind power generation operator J and offshore equipment maintenance company M can improve the predictability of repair costs and prevent price increases. This can reduce risk management costs such as insurance premiums, project interest rates, and contingency funds related to offshore wind power generation projects.

[0054] The technical scope of this disclosure is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of this disclosure. For example, offshore equipment maintenance company M may lease its dedicated work vessel F to offshore wind power generation operators J1 and J2. Offshore wind power generation facility 1 is not limited to the first offshore wind power generation facility 1A and the second offshore wind power generation facility 1B, but may be any more than that. These offshore wind power generation facilities may have the same type, specifications, and power generation capacity, or they may have different types, specifications, and power generation capacities. Offshore equipment maintenance company M only needs to own at least one SEP vessel F1 and one cable repair vessel F2 as dedicated work vessels F, and may own multiple vessels. Offshore equipment maintenance company M may also own other dedicated work vessels F besides SEP vessel F1 and cable repair vessel F2. Offshore equipment maintenance company M may also own work vehicles, cranes, etc., for use at base port B. Spare parts 20 are not limited to blades 11 and submarine cables 15, but may include other parts or cables. Spare parts 20 may also be stored on dedicated work vessels F, such as SEP vessel F1 or cable repair vessel F2.

[0055] Furthermore, if in the waiting step S1 the SEP vessel F1 for repairing the offshore wind power generation facility 1 is kept waiting at the waiting location, in the identification step S2 the profit that the offshore wind power generation operator J will obtain may be identified based on the costs incurred by the offshore wind power generation operator J for storing spare parts used in the repair of the offshore wind power generation facility 1, including parts for the offshore wind turbine. In this case, by having the SEP vessel F1 stand by in the waiting step S1, even if the offshore wind power generation facility 1 requires repairs, spare parts, including components of the offshore wind turbine, can be transported by the SEP vessel F1. Therefore, in the identification step S2, by identifying the profit that the offshore wind power generation facility operator J will receive based on the cost of storing the spare parts used for repairing the offshore wind power generation facility, it is possible to increase the accuracy (satisfaction) of the profit that the offshore wind power generation facility operator J will receive.

[0056] Furthermore, it is possible to replace the components in the above embodiments with well-known components as appropriate, without departing from the spirit of this disclosure, and the above-described modifications may be combined as appropriate.

[0057] The method and specific apparatus according to the above embodiment can be understood, for example, as follows: (Note) <1> The method according to Embodiment 1 of this disclosure is characterized by comprising a waiting step of having a vessel for repairing offshore wind power generation equipment wait at a waiting location. According to this disclosure, there is a shortage of vessels for repairing offshore wind power facilities. By keeping this vessel on standby, it becomes possible to repair facilities earlier, as there is no need to arrange for repairs only after a malfunction occurs. In addition, by keeping the vessel on standby, it becomes possible to lower insurance premiums for offshore wind power facilities.

[0058] <2> The method relating to aspect 2 of this disclosure is: <1> The method is characterized in that it further comprises a specifying step in which a computer identifies the profit that the operator of the offshore wind power generation facility will obtain by having the ship wait in the waiting step. This disclosure makes it easy to understand the profits that offshore wind power plant operators can gain by keeping their ships on standby.

[0059] <3> The method relating to aspect 3 of this disclosure is: <2> The method thereof is characterized in that it further comprises a display step in which a computer displays the profit on a display unit. This disclosure makes it easy to see the benefits that offshore wind power plant operators can gain by keeping the ships on standby.

[0060] <4> The method relating to aspect 4 of this disclosure is: <2> or <3> In any of the methods described above, the method is characterized in that, in the specified step, the profit that the operator obtains by keeping the vessel on standby in the standby step is determined based on the amount by which the risk mitigation costs borne by the operator for the offshore wind power generation facility are reduced. This disclosure allows for the identification of the benefits that an offshore wind power plant operator gains from keeping a ship on standby, based on the risk mitigation costs that the operator incurs for the offshore wind power plant.

[0061] <5> The method relating to aspect 5 of this disclosure is: <4> The method described herein is characterized in that the risk mitigation costs include insurance premiums paid by the operator for the offshore wind power generation facility. According to this disclosure, the profits that offshore wind power operators gain by keeping ships on standby can be identified based on the insurance premiums that operators pay for the offshore wind power facilities.

[0062] <6> The method relating to aspect 6 of this disclosure is: <4> or <5> In any of the methods described herein, the risk mitigation costs include a reserve fund set aside by the operator to prepare for troubles occurring at the offshore wind power generation facility. According to this disclosure, the profits that offshore wind power plant operators gain by keeping ships on standby can be identified based on the contingency funds that operators set aside to prepare for problems that may occur at offshore wind power plants.

[0063] <7> The method relating to aspect 7 of this disclosure is: <4> from <6> In any of the methods described herein, the risk mitigation costs include the costs incurred by the operator for storing spare parts used in the repair of the offshore wind power generation equipment. According to this disclosure, the profits that an offshore wind power operator gains from keeping a vessel on standby can be identified based on the costs incurred by the offshore wind power operator for storing spare parts used in the repair of the offshore wind power facility.

[0064] <8> The method relating to aspect 8 of this disclosure is: <7> The method described herein is characterized in that the offshore wind power generation facility includes a first offshore wind power generation facility and a second offshore wind power generation facility, and the spare parts include a power transmission cable corresponding to the distance between the first offshore wind power generation facility and the second offshore wind power generation facility or the length over which damage is expected. According to this disclosure, if the power transmission cable connecting the first offshore wind power generation facility and the second offshore wind power generation facility malfunctions, it can be reliably repaired.

[0065] <9> The method relating to aspect 9 of this disclosure is: <7> or <8> In the method described in any of the above, the spare parts are mounted on the ship that is kept waiting in the waiting step. This disclosure will enable a faster response to malfunctions in offshore wind power generation facilities.

[0066] <10> The method relating to aspect 10 of this disclosure is: <4> from <9> In any of the methods described herein, the risk mitigation costs include the costs of formulating a construction plan for repairing the offshore wind power generation facility. According to this disclosure, the profits that offshore wind power operators gain by keeping the vessels on standby can be identified based on the costs of developing construction plans for repairs to the offshore wind power facilities.

[0067] <11> The method relating to aspect 11 of this disclosure is: <2> from <10> A method according to any of the above, characterized in that in the specified step, the profit that the operator of the offshore wind power generation facility obtains by carrying out the offshore wind power generation facility project is identified in the waiting step by determining the profit that the operator obtains by keeping the vessel on standby. According to this disclosure, the profits that offshore wind power operators gain by keeping ships on standby can be identified based on the profits that offshore wind power operators gain by planning and executing offshore wind power projects.

[0068] <12> The method relating to aspect 12 of this disclosure is: <2> from <11> Any method of the present invention further comprises a calculation step in which a computer calculates a portion of the profit identified in the specific step as compensation for keeping the ship on standby in the standby step. According to this disclosure, by making the fee for keeping the vessels stationary a part of the profits that offshore wind power plant operators earn by keeping the vessels stationary, it becomes easier for those operators to keep the vessels stationary.

[0069] <13> The method relating to aspect 13 of this disclosure is: <12> The method is characterized in that, in the calculation step, a portion of the profit is varied according to the type of profit identified in the identification step, and this is calculated as compensation for keeping the ship on standby in the standby step. According to this disclosure, the compensation for keeping the ship on standby can be calculated in more detail by varying the percentage of the profit depending on the type of profit identified.

[0070] <14> The method relating to aspect 14 of this disclosure is: <1> from <13> In any of the methods described herein, the offshore wind power generation facility is characterized in that there is one or more such facilities. According to this disclosure, if there are multiple offshore wind turbines, the vessels kept on standby at the standby location can be reused among the multiple offshore wind turbines. This makes it possible to reduce, for example, the cost of keeping a vessel on standby at the standby location for repairing each offshore wind turbine.

[0071] <15> The method relating to aspect 15 of this disclosure is: <14> The method described herein is characterized in that the operator of the multiple offshore wind power generation facilities is one or more. According to this disclosure, if there are multiple operators of offshore wind power generation facilities, the vessels kept at the standby location can be shared among the multiple operators. This makes it possible to reduce, for example, the cost per operator of keeping a vessel at the standby location for repairing offshore wind power generation facilities.

[0072] <16> The method relating to aspect 16 of this disclosure is: <1> from <15> In any of the methods described herein, the vessel to be kept waiting in the waiting step includes a Special Emergency Response (SEP) vessel. According to this disclosure, having a SEP vessel on standby will enable it to respond to failures in wind turbines and foundations of offshore wind power facilities.

[0073] <17> The method relating to aspect 17 of this disclosure is: <1> from <16> In any of the methods described herein, the vessel to be kept waiting in the waiting step includes a cable repair vessel. According to this disclosure, a cable repair vessel will be kept on standby, making it possible to respond to cable repair requests.

[0074] <18> The identifying device according to aspect 18 of this disclosure is characterized by comprising identifying means for identifying the profits that an operator of an offshore wind power generation facility will obtain by having a ship for repairing the offshore wind power generation facility wait at a waiting location. This disclosure makes it easy to understand the profits that offshore wind power plant operators can gain by keeping their ships on standby.

[0075] <19> A method relating to aspect 19 of the present disclosure comprises a waiting step of having a SEP vessel for repairing an offshore wind power generation facility wait at a waiting location, and a identification step of a computer identifying the profit that the operator of the offshore wind power generation facility will obtain by having the SEP vessel wait in the waiting step, wherein the identification step identifies the profit that the operator will obtain based on the cost of having the operator store spare parts used for repairing the offshore wind power generation facility, and the spare parts include parts of an offshore wind turbine. According to this disclosure, by having the SEP vessel stand by during the standby step, even if the offshore wind power generation facility requires repairs, spare parts, including components of the offshore wind turbine, can be transported by the SEP vessel. Therefore, by identifying the profit that the offshore wind power generation facility operator will receive in a specific step based on the cost of storing spare parts used for repairs to the offshore wind power generation facility, it becomes easier to improve the accuracy (satisfaction) of the profit that the offshore wind power generation facility operator will receive.

[0076] <20> The program relating to aspect 20 of this disclosure is <18> It is characterized by being a program that causes a computer to function as the specific device described above. This disclosure makes it easy to understand the profits that offshore wind power plant operators can gain by keeping their ships on standby. [Explanation of symbols]

[0077] 1. Offshore wind power generation facilities 1A No. 1 Offshore Wind Power Generation Facility 1B Second Offshore Wind Power Generation Facility 11 Blades 15 Submarine Cables 20 spare parts 30 Specific equipment 33 Output section (display section) 35 Control Unit 35a Identification means 35b Calculation method 35c Display means B Base port (standby area) F Dedicated workboat (ship) F1 SEP ship F2 Cable Repair Ship J Offshore wind power generation operators J1 Offshore Wind Power Generation Operator J2 Offshore Wind Power Generation Operator M Offshore Equipment Maintenance Contractor V Image

Claims

1. A waiting step for a ship to wait at a designated waiting area for repairing offshore wind power generation equipment, A computer identifies the profits that the operator of the offshore wind power generation facility will gain by having the ship wait during the standby step, Equipped with, In the aforementioned specific step, the profit that the operator will gain by keeping the vessel on standby in the standby step is determined based on the difference between the risk mitigation costs that the operator will incur for the offshore wind power generation facility when the vessel is on standby and the risk mitigation costs that the operator will incur for the offshore wind power generation facility when the vessel is not on standby. A method characterized by the following:

2. The aforementioned risk mitigation costs include insurance premiums paid by the operator for the offshore wind power generation facility. The method according to feature 1.

3. The aforementioned risk mitigation costs include contingency funds set aside by the operator to prepare for troubles that may occur at the offshore wind power generation facility. The method according to feature 1.

4. The aforementioned risk mitigation costs include the costs incurred by the operator for storing spare parts used in the repair of the offshore wind power generation equipment. The method according to feature 1.

5. The aforementioned offshore wind power generation facility includes a first offshore wind power generation facility and a second offshore wind power generation facility. The spare parts include a power transmission cable corresponding to the distance between the first offshore wind power generation facility and the second offshore wind power generation facility or the length over which damage is expected. The method according to feature 4.

6. The aforementioned spare parts are installed on the ship that is kept waiting in the waiting step. The method according to feature 4.

7. The aforementioned risk mitigation costs include the costs of formulating a construction plan for the repair of the offshore wind power generation facility. The method according to feature 1.

8. A waiting step for a ship to wait at a designated waiting area for repairing offshore wind power generation equipment, A computer identifies the profits that the operator of the offshore wind power generation facility will gain by having the ship wait during the standby step, Equipped with, In the aforementioned specific step, the profit that the operator would gain by keeping the ship on standby in the standby step is determined based on the difference between the profit that the operator would gain by executing the offshore wind power generation project when the ship is on standby and the profit that the operator would gain by executing the offshore wind power generation project when the ship is not on standby. A method characterized by the following:

9. A computer displays the profit identified in the aforementioned specific step on a display unit. The method according to any one of claims 1 to 8, further comprising the following:

10. A calculation step in which the computer calculates a portion of the profit identified in the specified step as compensation for keeping the ship on standby in the standby step, The method according to any one of claims 1 to 8, further comprising the following:

11. In the calculation step, depending on the type of profit identified in the specific step, a portion of the profit identified in the specific step is varied, and the compensation for keeping the ship on standby in the standby step is calculated accordingly. The method according to the present invention, characterized by the present invention.

12. The aforementioned offshore wind power generation facility is one or more. The method according to any one of claims 1 to 8, characterized by the following:

13. The operator of the offshore wind power generation facility is one or more. The method according to 12, characterized by the features described above.

14. The vessels to be kept waiting in the aforementioned waiting step include SEP vessels, The method according to any one of claims 1 to 8, characterized by the following:

15. The vessels to be kept waiting in the aforementioned waiting step include cable repair vessels, The method according to any one of claims 1 to 8, characterized by the following:

16. A means for identifying the profits that an offshore wind power generation facility operator obtains by having a ship for repairing the offshore wind power generation facility wait at a designated waiting area. Equipped with, The aforementioned identification means identifies the profit that the operator will gain by keeping the vessel on standby, based on the difference between the risk mitigation costs that the operator will incur for the offshore wind power generation facility when the vessel is on standby and the risk mitigation costs that the operator will incur for the offshore wind power generation facility when the vessel is not on standby. A specific device characterized by the following features.

17. A means for identifying the profits that an offshore wind power generation facility operator obtains by having a ship for repairing the offshore wind power generation facility wait at a designated waiting area. Equipped with, The identifying means identifies the profit the operator would gain by keeping the ship on standby, based on the difference between the profit the operator would gain by carrying out the offshore wind power generation project when the ship is on standby and the profit the operator would gain by carrying out the offshore wind power generation project when the ship is not on standby. A specific device characterized by the following features.

18. A waiting step for a Special Engineering Service (SEP) vessel to wait at a designated waiting area for the repair of offshore wind power generation equipment, The computer performs a selection step in which it identifies the profit that the operator of the offshore wind power generation facility will obtain by having the SEP vessel wait during the waiting step, Equipped with, In the aforementioned specific step, the profit obtained by the operator is determined based on the difference between the cost of storing spare parts used for repairing the offshore wind power generation equipment when the SEP vessel is kept on standby and the cost of storing spare parts used for repairing the offshore wind power generation equipment when the SEP vessel is not kept on standby. The aforementioned spare parts include components for offshore wind turbines. A method characterized by the following:

19. A program that causes a computer to function as the specific device described in claim 16 or 17.

Images