59 results about "Energy device" patented technology

The invention discloses a soil resistance perception-based multi-mode adaptive subsoiling mechanism, which comprises an integral rack, a subsoiling monomer, a control system and an energy device, the subsoiling monomer detects soil resistance in real time through a sensor assembly and transmits the soil resistance to the control system, and the control system controls the subsoiling monomer according to the magnitude and change characteristics of the soil resistance. The subsoiler is automatically switched among three modes of traditional rigid connection subsoiling, self-excited vibration subsoiling and forced vibration subsoiling; when the soil resistance is smaller than a first preset threshold value, a rigid connection mode is adopted; when the resistance is between a first preset threshold value and a second preset threshold value, a self-excitation vibration mode is started; and when the resistance is greater than a second preset threshold value, the vibration motor is started to realize forced vibration. The control system not only monitors the resistance absolute value, but also analyzes the time characteristic to realize intelligent threshold adjustment. The problems that a traditional subsoiling mechanism is high in energy consumption and poor in adaptability are solved, and the intelligent subsoiling mechanism has the advantages of intelligent operation mode switching, optimized energy utilization, adjustable vibration parameters and the like.

The invention relates to the field of power systems and automation thereof, in particular to a multi-energy system collaborative operation optimization method based on improved particle swarm optimization and a related device. Modeling according to the operation characteristics of the multiple energy systems to obtain a multi-energy system model; optimizing the multi-energy system model based on particle swarm optimization, and calculating and generating an energy scheduling result by taking system operation cost, energy utilization efficiency and pollutant emission as optimization targets; and distributing output priorities of different energies according to an energy scheduling result, and generating an energy storage system operation strategy based on the output priorities. According to the invention, the comprehensive power system model of photovoltaic, wind power, hydroelectric, thermal power and energy storage systems is constructed, and according to the operation characteristics of each energy device, the physical characteristics and dynamic interaction relationships of different energy sources can be accurately simulated. According to the model, equipment constraint conditions and real-time operation parameters are fully considered, high-precision basic data are provided for optimal scheduling, and the practicability and reliability of the model are remarkably enhanced.

The invention belongs to the technical field of energy system scheduling, and particularly discloses a multi-time-scale dynamic optimization scheduling method and system for an integrated energy system, and the method comprises the steps: collecting the operation data and topological parameters of each energy device in the integrated energy system, constructing an initial energy flow model, and mapping the initial energy flow model to a discrete time domain from a Laplacian domain, establishing a linear dynamic energy flow model; calculating the inertia time of the system according to the normalized step response of the heat supply network and the natural gas network, and constructing a multi-time scale scheduling framework with double-layer intra-day rolling optimization according to the inertia time; and setting different optimization objective functions in three scheduling levels, namely a day-ahead scheduling level, an intra-day upper layer scheduling level and an intra-day lower layer scheduling level, so as to realize dynamic optimization of the running state and load adjustment of the coupling equipment. The problems of time scale separation, discontinuous state, poor adaptability of heterogeneous network inertia difference and the like in an existing scheduling method are solved, and the scheduling stability and the operation economy of the comprehensive energy system under the high permeability of renewable energy sources are improved.

The invention relates to a scheduling method applied to a multi-energy microgrid, and the method comprises the steps: obtaining the output data and meteorological information of wind power photovoltaic, inputting the output data and meteorological information into a load prediction model, and obtaining a wind power photovoltaic net load prediction curve; according to the net load prediction curve, the optimal start-stop plan and output scheduling scheme for solving the gas turbine and the fuel cell are obtained by combining the minimum start-stop time and climbing rate constraint for solving the gas turbine and the fuel cell; the charging and discharging state of the energy storage equipment is obtained, a charging and discharging optimization model with the minimum scheduling cost as the target is established according to the charging and discharging state, and a charging and discharging strategy of the energy storage equipment is obtained; and integrating the optimal start-stop plan and the output scheduling scheme for solving the gas turbine and the fuel cell and the charging and discharging strategy of the energy storage equipment to form a complete energy scheduling scheme. According to the invention, coordinated optimization scheduling of various energy devices is realized, and the operation efficiency and economical efficiency of the multi-energy micro-grid are improved.

The invention belongs to the ocean wave energy power generation technology, and particularly discloses a suspended hammer floating type wind-wave combined generator set and a cooperative control method.The combined generator set comprises a semi-submersible floating type platform, a wind power generation device is arranged on the upper portion of the semi-submersible floating type platform, and the semi-submersible floating type platform is anchored by three anchor chains; three power generation sleeves are hinged to the interior of the semi-submersible floating type platform, the lower end of each power generation sleeve is correspondingly installed at the upper end of a variable-length damping inclined supporting rod, the lower end of each damping inclined supporting rod is hinged to a suspension hammer through a universal joint, and the power generation sleeves, the damping inclined supporting rods and the suspension hammer jointly form an inverted-triangular-pyramid-shaped wave energy power generation device. The wind power generation device and the wave power generation device are both controlled by the control system. Through the action of the lower suspension hammer wave energy device, the action of flexibly adjusting the motion response of the upper semi-submersible floating platform and the lower suspension hammer wave energy device is achieved, and the motion response and the borne load of the floating wind generating set are effectively improved.

The invention discloses a pruning machine which comprises a main body connected with an energy device; the motor is arranged to drive the working assembly to move; the device is characterized in that the main body comprises a first holding part for a user to hold; an accommodating portion accommodating at least a portion of the motor; the motor has a motor gravity center; the working assembly comprises a first working piece and a second working piece, and a surface which is positioned in the center of the first working piece and the second working piece and is basically parallel to the extension directions of the first working piece and the second working piece is defined as a central surface; the distance between the central plane and the center of gravity of the motor in the vertical direction is larger than or equal to 0 mm and smaller than or equal to 40 mm. The pruning machine is comfortable and safe to use.

The invention discloses an industrial park comprehensive energy management method and system based on a hierarchical system, and belongs to the technical field of energy management and automatic control. The method comprises the following steps: integrating external data, and predicting load and renewable energy power generation power by using a machine learning algorithm; making a start-stop and output plan of each energy device in the park through an MILP model; and based on short-term prediction and an intra-day scheduling plan, establishing an MPC model, solving a real-time control instruction of each energy device, and controlling operation of various energy production, conversion and storage devices. According to the method, an algorithm combining reinforcement learning and model prediction control is creatively applied, the prediction model and the cost function of MPC are adaptively adjusted on line through reinforcement learning, the equipment power is dynamically adjusted in combination with short-term rolling prediction, uncertainty is effectively dealt with, more accurate second-level power balance is achieved, and the reliability of the system is improved. And the adaptability and the operation economy of the system to high-proportion renewable energy sources are effectively improved through hierarchical collaborative optimization.

The invention discloses an energy anchor rod and soil interface pull-out test device and a friction resistance performance evaluation method, and belongs to the technical field of anchor rod pull-out tests. The device comprises a grouting maintenance device and an energy device connected with the grouting maintenance device, wherein the grouting maintenance device comprises a sample cylinder, an upper cover plate, a lower cover plate, a centering top plug and a centering bottom plug; the energy device comprises a brass tube, a water bucket, a silicone tube, a water pump, a flow meter, a heating rod, a temperature controller, a reflection heat preservation film, a graphene heating film and a thermometer. The device has the advantages that the two energy devices are connected with the two brass pipes on the sample respectively, the temperature difference of the heat exchange pipes is artificially manufactured through different water temperatures of the two devices, and the summer working condition and the winter working condition of the actual energy anchor rod are simulated; according to the method provided by the invention, the friction resistance performance of the energy anchor rod and the soil interface can be evaluated, and the influence of an energy device on the anchor-soil interface under different temperature loading working conditions is judged.

The invention discloses a traffic energy double-end interconnected multiplexing type high-entropy energy device and a control method, and relates to the technical field of road energy collection. The system comprises a high-entropy energy collection module which is used for capturing physical form change energy generated when a vehicle passes through a road and converting the physical form change energy into electric energy; the central controller is electrically connected with the high-entropy energy collection module and used for energy monitoring and switch control; the road Internet of Things devices are arranged on the two sides of the road and connected with the central controller through underground cables; the energy storage modules are arranged on the two sides of the road and connected with the central controller through underground cables; and the power grid interface module is bidirectionally connected with the central controller and a power grid end through an underground cable. Various high-entropy physical energy generated by temperature difference, pressure, vibration and the like can be collected in the vehicle running process and converted into electric energy in real time, and cooperative scheduling and efficient utilization of multi-source energy are achieved through intelligent interconnection with road Internet of Things equipment, energy storage devices on the two sides of a road and a power grid.

The invention discloses an operation loss-energy efficiency-carbon emission balancing method and system of a park integrated energy system, and a medium, and the method comprises the following steps: introducing a stepped carbon transaction mechanism for the park integrated energy system, and considering that a demand side has the capability of regulating and controlling demand response, the scheduling conditions of strong consumption and high efficiency of the park integrated energy system under a highly controllable mechanism are researched and determined, and energy efficiency models of an energy supply structure and various energy devices are established; and according to the energy efficiency model, solving by taking the lowest operation loss, the lowest carbon emission cost and the highest energy efficiency as targets, and obtaining an optimal scheduling scheme under the condition of ensuring that the operation loss, the lowest carbon emission cost and the highest energy efficiency are balanced. According to the scheme, after an adjustable and controllable load response mechanism is introduced, supply and demand coordination and multi-energy complementation can be flexibly carried out on the supply side and the demand side according to a scheduling instruction of the park, new energy consumption is promoted, and the energy efficiency is further improved.

In one aspect, the present disclosure provides a method for forming an energy device, the method comprising using at least one acoustic device to generate acoustic waves for facilitating a formation process of the energy device.

The utility model discloses an adjustable detachable flat plate phase change energy storage device in the field of energy devices, and aims to solve the problems that in the prior art, a phase change energy storage device is closed, and an internal energy storage flat plate cannot be adjusted and maintained, the adjustable detachable flat plate phase change energy storage device comprises a shell with an opening, a sealing cover and a plurality of energy storage flat plates, the multiple energy storage flat plates are laid in the shell layer by layer, an extension frame is fixed to the periphery of the opening of the shell, the sealing cover is detachably connected with the extension frame so as to seal the opening, the sealing cover of the phase change energy storage device is detachably installed on the shell, the number of the internal energy storage flat plates can be adjusted, the use requirement is met, and the phase change energy storage device is convenient to use. The internal energy storage flat plate can be replaced, the working efficiency of the energy storage device is ensured, when the lower energy storage flat plate needs to be taken out, the lower energy storage flat plate is taken out and replaced after the limiting component on the limiter is rotated, the working efficiency of the energy storage device is ensured, and energy waste is avoided.

The invention discloses wind and light energy storage equipment, which relates to the technical field of wind and light energy storage and comprises an energy storage device, a shielding assembly, a wind energy device, a light energy device and an output assembly. A switch sleeve is manually driven to slide upwards, the switch sleeve drives a solar panel to unfold through a light energy connecting rod, meanwhile, the switch sleeve drives a light energy lead screw to rotate, the light energy lead screw drives a friction wheel to rotate through a friction disc, and the friction wheel drives a wind power plate to incline through an inclination assembly. Integrated control over unfolding of the solar panel and inclination of the wind power plate is achieved, the light energy sleeve drives a direction limiting lantern ring of the direction limiting assembly to rotate, the direction limiting lantern ring drives a direction limiting seesaw to rotate through an elastic pull strip, and therefore the wind power device is converted into a one-way rotation state from a locking state. The energy storage device and the wind energy rotary drum drive the energy storage main wheel to rotate, the energy storage main wheel drives the energy storage small wheel to rotate, and the energy storage small wheel drives the air storage plunger to reciprocate through the energy storage connecting column, so that air is compressed into the air storage box, and energy storage is achieved.

The invention belongs to the technical field of offshore wave energy power generation, and particularly relates to a multi-dimensional swing type wave energy power generation device and an energy obtaining method thereof.The device comprises an outer swing body, an energy capturing swing mechanism, a base and an inner swing body, the energy capturing swing mechanism is composed of a plurality of hydraulic rods, a swing arm support and an energy conversion system, the base is connected with a draught fan floating platform, and the swing arm support is connected with the draught fan floating platform; the energy conversion system is connected with the hydraulic rod through a pipeline and used for converting hydraulic energy into electric energy. The outer swinging body is a hemispherical shell and can capture multi-dimensional acting force of waves; the inner swing body comprises a linear motor, a rotating shaft and a reversing rod, and the energy conversion system is driven to generate power through reciprocating motion of the linear motor. The problems that an existing wave energy device is low in energy conversion efficiency and unstable are solved, and through cooperative movement of the outer swing body and the inner swing body, capturing of multi-dimensional wave force and a flexible hydraulic system structure, the conversion efficiency of wave energy is improved, anchoring and structural layout is optimized, and the utilization efficiency of a sea area is improved.

The present invention belongs to the technical field of wave energy power generation, and discloses a novel oscillating water column wave energy conversion device that can adapt to wave conditions. The front wall of the device can move forward and backward and rotate, and the front and rear positions of the front wall can be adjusted according to the incident wave conditions, so that the natural frequency of the oscillating water column in the device matches the incident wave, thereby ensuring that the device can have a good wave energy capture efficiency under waves of different frequencies; a hydraulic energy catcher is connected to the top of the front wall, and one end of the hydraulic energy catcher slides on a guide rail to absorb the kinetic energy generated by the rotation of the front wall, further improving the energy capture effect of the wave energy device. Based on the characteristic of being able to change the width of the air chamber of the oscillating water column wave energy device, the present invention improves the wave frequency adaptability of the device, so that it can achieve efficient conversion of wave energy under conditions of incident waves of different frequencies, and the swingable front wall can further improve the energy capture effect of the device.

The invention discloses a wave energy equipment self-adaptive adjustment method and system based on data feedback, and belongs to the technical field of wave energy. According to the method, wave vibration behavior data, weighing block vibration behavior data and liquid volume and pressure information are collected in real time through an acceleration sensor, a flow meter and a pressure sensor; equidistant sampling of wave vibration data is realized by using an interpolation algorithm, and a wave dominant frequency is quantified and a sliding window is set in combination with self-correlation analysis; the mass variation of the weighing block is dynamically calculated based on a sliding mode surface control model, control parameters are updated in real time through a discrete time self-adaptive feedback model, the flow of a water suction pump is adjusted to change the mass of the weighing block, the vibration frequency of the weighing block is made to be matched with the wave dominant frequency, and closed-loop control is formed. According to the invention, the problems of low energy conversion efficiency and weak anti-interference capability caused by frequency mismatch of existing wave energy equipment are solved, and through dynamic quality adjustment and a self-adaptive feedback mechanism, the adaptability of the equipment to a complex marine environment and the energy capture efficiency are improved.

The invention relates to the technical field of landscape ecological energy devices, in particular to a landscape stepping stone self-energy-supply module structure based on wind and tide composite energy, which comprises an energy supply module mechanism consisting of a buoyancy base, two transmission main shafts, stepping stone panels mounted on the two transmission main shafts, a wind wheel and a tide turbine, a partition plate is arranged in the buoyancy base and divides the interior of the buoyancy base into an upper cavity and a lower cavity, water quality improving modules are arranged on the upper cavity and the buoyancy base, and the wind wheel and the tidal turbine drive the independent generators respectively and are electrically connected in parallel, so that the wind energy power generation module and the tidal energy power generation module are independent from each other. When one energy supply has a problem, such as insufficient wind power or unstable rotating speed of the tidal turbine caused by tidal change, the other module can still work normally, so that the stability and reliability of the whole power generation system are ensured, the continuity of energy supply is improved, and the power generation efficiency is improved. Meanwhile, redundant mechanical kinetic energy is utilized to actively improve and detect the ecological environment of the water body.

The present application is directed to the optimization control problem of the park comprehensive energy system under the coupling of multiple energy forms, and proposes a park comprehensive energy system hierarchical control method and system. The park comprehensive energy system is divided into a system layer, a device aggregation layer and an element control layer. By aggregating the energy devices, load terminals and control elements in the park according to the energy supply form, energy use characteristics, spatial position and the like, the energy subsystems are used as the energy subsystems to participate in the upper layer "system-device" operation strategy optimization. The energy subsystems of the device aggregation decompose the upper layer control strategy into internal executable commands according to the internal energy structure, so as to realize the control execution of the "device-element" layer.

The invention discloses a micro-grid dispatching method, device and equipment and a storage medium, and relates to the technical field of micro-grid management and control, and the method comprises the steps: obtaining an energy operation model corresponding to target energy equipment in a target micro-grid; performing mixed integer programming operation based on the energy operation model to obtain a target operation curve; and performing power scheduling on the target energy equipment according to the target operation curve. According to the method, the mixed integer programming operation is performed according to the energy operation model pre-established for the target energy equipment in the micro-grid, so that the target operation curve corresponding to the optimal overall energy operation condition of the micro-grid is predicted, and power scheduling of the target energy equipment is performed based on the target operation curve. According to the invention, each energy device in the micro-grid is ensured to adaptively operate in an optimal state according to an actual condition, so that the effect of each energy device in a power system is exerted to the greatest extent, the overall economic benefit of the micro-grid is improved, and the energy consumption cost of the micro-grid is effectively reduced.

The present invention discloses a shore-based array wave energy power generation device in a nested power generation form, which belongs to the technical field of wave energy power generation; it comprises a breakwater, the edge of which is provided with a plurality of arc-shaped banks, each of which is provided with a power generation device, the power generation device comprises an outer air chamber and an inner air chamber which are nested in sequence from the outside to the inside, the outer air chamber is connected to the arc-shaped bank through a slide rail, and the bottom of the inner air chamber is fixedly connected to the arc-shaped bank through a connecting rod. The present invention adopts the above structure, the breakwater adopts an arc-shaped design, which provides a wave gathering effect for the array wave energy device, improves the power generation efficiency of the wave energy device, and can also reduce the impact of waves on the shore breakwater; the outer air chamber can be raised and lowered to avoid collision with the inner air chamber, the outer air chamber performs vertical swing motion to generate electricity with a turbine and a linear motor, and the resonance frequency of the internal gas is controlled by setting the inner air chamber to improve the vertical swing motion efficiency, thereby increasing the power generation efficiency.

1. Name of the Design Product: Moxibustion Energy Instrument. 2. Use of the Design Product: For foot physiotherapy, expelling cold and dampness, and warming channels and activating collaterals. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph that Best Indicates the Design Key Points: Perspective view.

A method and apparatus is described for providing energy system status information. A status indication device may be mounted near an entry door for determining when an individual is about to leave an area. When the status indication device determines that an individual is about to leave an area, it displays an energy status to the individual, so that the individual can decide whether to place energy-consuming devices in a conservation mode of operation.

The invention relates to the technical field of ocean platform anchoring, and particularly discloses a wave energy device anti-typhoon anchoring system which comprises a wave energy device floating body structure, a constant-pressure phase change energy storage device, an anchor chain and an anchor. The constant-pressure phase-change energy storage device is arranged in the floating body structure of the wave energy device and comprises a shell, a partition plate is arranged in the shell and divides the interior of the shell into a first cavity and a second cavity, a pressure spring tension rod component is arranged in the first cavity, at least part of the pressure spring tension rod component extends to the outer side of the shell, and the pressure spring tension rod component is arranged in the second cavity. An air bag type constant-pressure component is arranged in the second cavity, and the pressure spring tension rod component can act on the air bag type constant-pressure component; one end of the anchor chain is connected with the part, extending to the outer side of the shell, of the pressure spring tension rod component; the anchor is connected to one end of the anchor chain away from the pressure spring tension bar component. The problem of shallow water typhoon resistance of the anchoring system can be solved, safe and long-term use of key components of the anchoring system can be guaranteed, the service life is prolonged, and the safety is improved.

To provide a nonaqueous electrolyte solution which can achieve a high capacity and enhance the discharge characteristic (rate characteristic) under a high-current density condition in an energy device, and an energy device arranged by use of the nonaqueous electrolyte solution.SOLUTION: A nonaqueous electrolyte solution comprises: at least one compound (A) selected from a group consisting of a fluoro sulfonate anion-containing compound and an alkyl sulfate anion-containing compound; and at least one compound (B) selected from a group consisting of a linear ether compound (B-1) and a nitrile compound (B-2). In the nonaqueous electrolyte solution, a total content of the compound (B) is 1.0×10-5 mass% or more and below 1.0×10-1 mass%. The mass proportion [(A) / (B)] of a content of the compound (A) to the content of the compound (B) is no less than 98.000 / 2.000 and no more than 99.995 / 0.005.SELECTED DRAWING: None

The present application belongs to the technical field of offshore wave energy power generation, and specifically relates to a multi-dimensional pendulum wave energy power generation device and its energy acquisition method. The device includes an outer pendulum body, an energy-capturing swing mechanism, a base and an inner pendulum body, wherein the energy-capturing swing mechanism is composed of a plurality of hydraulic rods, a swing arm bracket and an energy conversion system. The base is connected to the wind turbine floating platform, and the energy conversion system is connected to the hydraulic rods through pipelines to convert hydraulic energy into electrical energy. The outer pendulum body is a hemispherical shell that can capture the multi-dimensional force of waves; the inner pendulum body includes a linear motor, a rotating shaft and a reversing rod, and the reciprocating motion of the linear motor drives the energy conversion system to generate electricity. The present application solves the problems of low energy conversion efficiency and instability of existing wave energy devices. Through the coordinated movement of the outer pendulum body and the inner pendulum body, as well as the capture of multi-dimensional wave forces and the flexible hydraulic system structure, the wave energy conversion efficiency is improved, the anchoring and structural layout are optimized, and the utilization efficiency of the sea area is improved.

The invention relates to the field of micro-nano energy devices, and discloses a bionic ultralow rotation-ejection piezoelectric vibration energy harvesting device, which comprises a shell, the rotating piece is rotationally connected into the shell and provided with a plurality of branches, and the multiple branches are evenly distributed in the circumferential direction of the rotating piece; the transmission part is slidably connected to the side edge of the rotating part in the shell, the elastic part is connected with the shell and the transmission part, the push rod is arranged on the transmission part, part of the push rod penetrates out of the shell, and a first magnet is arranged at the penetrating-out end of the push rod; the piezoelectric cantilever beam is longitudinally arranged on the side edge of the push rod penetrating-out end outside the shell, a second magnet opposite to the first magnet is arranged on the piezoelectric cantilever beam, and the magnetic poles of the opposite ends of the first magnet and the second magnet are the same. The bionic ultralow rotation-ejection piezoelectric vibration energy harvesting device can convert broadband and ultra-broadband mechanical vibration into instantaneous high energy to be output in a nonlinear mode at a low rotation speed, flexibly adapts to diversified vibration source environments, and improves the energy harvesting efficiency to the maximum extent.

The invention discloses a variable-rigidity impact type deep scarification mechanism based on electromagnetic control and a control method, and relates to the technical field of agricultural machinery, the variable-rigidity impact type deep scarification mechanism comprises a rack, a control center, an energy device and a plurality of deep scarification mechanism assemblies, the plurality of deep scarification mechanism assemblies are connected with the rack, the rack is provided with a mounting platform, and the mounting platform is connected with the control center. The installation platform is connected with the energy device, the energy device comprises an air pressure power source and an electric power supply unit, the energy device is electrically connected with the control center, and the control center is connected with the upper end of the front portion of the rack. According to the variable-rigidity impact type deep scarification mechanism based on electromagnetic control and the control method, the rigidity of the mechanism is changed by adjusting the current of the repulsive force magnetic ring so as to maintain self-excited vibration, and high-frequency micro-amplitude impact or large-stroke chiseling is achieved through the push-pull type electromagnet or the impact cylinder so as to adapt to soil environments with different hardness.

Provided herein are devices, systems, and methods for improving performance and lifetime of energy devices. In some embodiments, the present disclosure provides an acoustic module for improving energy device performance, the acoustic module comprising: at least one acoustic device configured to be operably coupled to an energy device, wherein the at least one acoustic device comprises (1) an acoustic wave generator configured to generate acoustic waves and (2) a housing enclosing the acoustic wave generator, wherein the housing is configured to be attached to an external surface of the energy device in a configuration that permits the acoustic waves to be streamed into the energy device; and at least one controller configured to control the at least one acoustic device to stream the acoustic waves into the energy device.

The invention discloses a hybrid power generation system, which relates to the technical field of power generation devices, and comprises a semi-submersible platform, a wind generating set and a pneumatic wave energy device, the wind generating set is arranged at the top of the semi-submersible platform and is used for converting wind energy into electric energy; the pneumatic wave energy device is carried on the semi-submersible platform; the pneumatic wave energy device is used for converting wave energy into electric energy and can absorb the wave energy to improve the stability of the semi-submersible platform. According to the hybrid power generation system provided by the invention, the energy utilization efficiency can be improved, and the platform stability can be enhanced.

A method and apparatus is described for providing energy system status information. A status indication device may be mounted near an entry door for determining when an individual is about to leave an area. When the status indication device determines that an individual is about to leave an area, it displays an energy status to the individual, so that the individual can decide whether to place energy-consuming devices in a conservation mode of operation.