Subsidy Mechanism of Customer-Side Energy Storage Based on Peak-Valley Arbitrage
The economic viability of customer-side energy storage projects in China is constrained by high initial investment costs and limited peak-valley price spreads,resulting in a heavy reliance on government subsidies.This paper constructs an economic benefit model for customer-side energy storage and a subsidy impact evaluation model to identify the most effective subsidy approach for such projects in China.First,the paper reviews time-of-use(TOU)electricity tariffs and new energy storage subsidy policies across different regions of China.Second,an economic benefit model is developed that accounts for various subsidy approaches,incorporating the concept of subsidy elasticity to establish a subsidy impact evaluation model.Finally,a case study is presented using actual data from a commercial and industrial energy storage project in a northeastern region.The results indicate that providing subsidies based on discharge volume significantly improves the economic benefits of customer-side energy storage projects.To ensure stable and sustainable returns for these projects,it is also essential to diversify revenue streams.
subsidies for customer-side energy storagetime-of-use tariffspeak-valley arbitrageeconomic efficiencysubsidy elasticity
万方数据
维普
