New energy storage why so important: 'superior' the only way

Policy stability requirements and new energy grid is behind the volatility more highlights the contradictions. Wind power photovoltaic permeability of rapid ascension to power system puts forward the severe test, the existing resources flexibility has been unable to support grid to accept such a high proportion of the volatility of energy, energy storage as better flexibility resource, can effectively smooth new energy output, provides the auxiliary services such as FM peak shaving.

the addition of energy storage can makes new energy grid friendly high quality power supply, at the same time help new energy to achieve a variety of value, including power plant, smooth curve of output, is required to provide ancillary services, etc.

we ground of a photovoltaic (pv) power plant configuration calculates three scenarios of energy storage: respectively: no energy storage, energy storage ( Only realize reduced the electric function) , energy storage ( Reduced the electricity at the same time to provide ancillary services) 。

when peak only have cut energy storage system, internal rate of return is difficult to meet the requirements of 8%, solar net, because abandoned electric energy storage cost is not enough to offset the additional gain. But after energy storage in FM market, can earn additional ancillary services, internal rate of return, though still lower than that of without energy storage, solar portal, but has been higher than 8%. But as the energy storage cost further reduce or ancillary services revenue increase, economy is expected to be solved.

we installed under different storage permeability in 2024 metered, neutral scenario energy storage space can be up to 27. 95GW/55. 91 GWH, with an average annual compound growth rate of 149% and is expected to 2020 new power 0. 87 GWH, solar portal, is expected to realize annual new 33 in 2024. 49GWh。

we apart for energy storage industry chain, solar portal, link the battery still is the core system profit, the BMS and inverter is an important part.

energy storage system (including battery, inverter 个人电脑) , battery management system ( BMS) And so on. The battery costs accounted for about 67%, impact on the cost of energy storage power station, the largest photovoltaic (pv) grid, followed by variable flow system and the BMS, occupy 10% of the cost, and 9% respectively.

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this paper statistics the September to today issued a total of 2. 85 gw pv power plant EPC and 1. 9 gw component bid opening information. Among them, the EPC project owner units is given priority to with soe/state, this also reflected from the side, in project bidding and parity, the state-owned enterprises have become the absolute main force. Specifically, CGNPC in development of 410 mw, 603 mw, guangzhou energy saving 220 mw, 345 mw, jin can group the people vote for 200 mw, 190 mw hubei energy group, huaneng power 180 mw