Energy storage rental costs can be included in the total investment of wind projects. Energy storage equipment is mainly used to store wind energy to provide stable power output when wind power generation is unstable or unpredictable. The rental cost of energy storage equipment constitutes an important cost for the operation and maintenance of wind projects, so it can be included in the total project investment. Once the energy storage rental fee is included in the total project investment, the profitability and rate of return of the project can be evaluated more comprehensively and can serve as a reference for project financing arrangements. .
This question can actually be asked like this. How is electricity produced by power plants delivered to millions of homes? The surplus of electrCan it be stored so that it can be used when needed? I'll give you some steps. How is electrical energy stored? Electrical energy storage remains a problem worldwide. Everyone knows that smartphones are charged every day and electric cars can only travel one kilometer. Fundamentally, the problem of electrical energy storage has literally limited progress in social science and technology. Many people are dedicated to energy storage research institutes, but none of them have found a more reliable solution.
How does electricity reach users? At present, various power plants, whether hydroelectric, nuclear, wind, thermal, etc., are directly transmitted to thousands of homes through the power grid without energy storage. When users consume a lotup electricity, grid-connected power plants pump water to produce electricity. When users use less electricity, power plants shut down and produce less electricity. The technical name for this power consumption is “load”. The load on the power grid determines the operating status of the power plant. If the load on the grid is low, even if all the generators in the power plant are working, they remain idle and do not produce electricity. For example, when electricity is not needed and the tank water is full, the technical name is "abandoned water", which results in energy loss. If electricity can be stored, there will be no such waste. As you know, we still lack electricity during periods of peak electricity consumption.
Is there a way to store excess electricity? We all knows that batteries can store electricity, mainly in the form of chemical energy. Regardless of the size of the battery or accumulator, the quantity of electricity stored is far from sufficient for civil or industrial use, and the cost is too high to be used as a main energy source. Currently, electrical energy storage is, to a certain extent, an energy storage device, which stores it not in the form of chemical energy, but in the form of potential energy. Generally speaking, there are two forms, one is reservoir storage and the other is hydroelectric pumped-reservoir storage: I have already said that when the power grid is not loaded, power plants Hydroelectrics can only release water, but this is not absolute. We can build a big tank.
When there is no load on the network, the generator will be stopped and the water will be stored inns the tank. When electricity is needed, water is released from the reservoir to produce electricity. However, the tank capacity is limited. If it is full, the water will naturally be released. We now know the function of the large tanks we usually see. Pumped Hydroelectric Storage: Pumped hydroelectric power station is a new method of storing electrical energy. When the electricity consumption is low, since the hydropower station has to give up water, it can use the water to generate electricity, and then use part of the electricity to generate electricity.Pump it in a reservoir on the top of the mountain, wait until the top, and then release the water from the reservoir on the top of the mountain to generate electricity, thereby storing electrical energy and reducing the loss of disposable hydroelectric energy.