The necessity of building energy storage system in Shandong province is proposed according to the peak and frequency regulation demand of Shandong power grid

and the application mode and profitability model of allocating energy storage system in new energy power stations in Shandong province is analyzed in the context of power spot market. Finally

suggestions on energy storage policy under spot market conditions are given. It points out that

after the implementation of electricity spot market in Shandong province

the energy storage system can be charged at the low price of electricity and discharged at the peak price of electricity to obtain power revenue. If the new energy power station is configured with decentralized energy storage system

the energy storage system can only obtain power revenue from the spot market

and the profit model is difficult to expand. If the decentralized energy storage systems are gathered together to be freestanding energy storage power station

it can achieve profitability by obtaining spot market power revenue

leasing fees

and capacity tariff

which plays multiple roles in absorbing new energy

reducing spinning spare and providing emergency power support.