Method for whole life cycle economic evaluation of light storage combined operation power station

Abstract

The invention discloses a method for whole life cycle economic evaluation of a light storage combined operation power station.The method comprises the steps of establishing an initial total investment model of a light storage power station, establishing an annual cash inflow model of the light storage power station, establishing an annual cash outflow model of the light storage power station, and establishing an economic index evaluation model and economic evaluation of the light storage power station.According to the method, earning and cost increase amounts of an energy storage system are considered comprehensively, and whole life cycle economic index modeling is performed for the light storage power station.In view of capital time values, through an IRR-NPV comprehensive evaluation system, a reliable project selection standard is selected for investors, and the mis-investment on confusing projects which have paper profits, but is deflective in reality can be effectively avoided.

Description

technical field [0001] The invention relates to a method for evaluating the life-cycle economics of a power station, in particular to a method for evaluating the life-cycle economics of a solar-storage combined operation power station, which belongs to the technical field of power supply. Background technique [0002] The volatility and uncertainty of photovoltaic power generation have always been the key issues restricting the development of photovoltaic power generation. At present, the common solution in the world is to equip photovoltaics with energy storage systems to stabilize fluctuations. There are few large-capacity energy storage methods, including pumped hydro storage and energy storage batteries. Since the water turbine unit cannot achieve a second-level response speed and has strict requirements on the construction environment, the present invention uses the energy storage battery as the only energy storage system. [0003] Capital has time value. The time va...

AI Technical Summary

Problems solved by technology

At present, the economic evaluation model of photovoltaic power plants mainly adopts the form of algebraic sum of cost and income, and does not consider the time value of funds

Also, existing models only include photovoltaic systems and do not consider energy storage systems

Energy storage batteries are expensive, and the initial investment of photovoltaic storage power stations is very large. If the time value of capital is not considered, investors may mistakenly invest in confusing projects that make profits on the books but actually lose money

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