Subsidy Policies and Economic Analysis of Photovoltaic Energy Storage
In order to systematically assess the economic viability of photovoltaic energy storage integration projects after considering energy storage subsidies, this paper reviews
In order to systematically assess the economic viability of photovoltaic energy storage integration projects after considering energy storage subsidies, this paper reviews
PDF version includes complete article with source references. Suitable for printing and offline reading.
Policy implications Strategic alignment and incentive mechanisms for energy storage development. The findings emphasize the crucial role of government subsidies in steering the energy storage sector toward a dynamic equilibrium, where active government support, operator engagement, and grid modernization converge effectively.
The results indicate that, while the current energy storage subsidy policies positively stimulate photovoltaic energy storage integration projects, they exhibit a limited capacity to cover energy storage investment costs, thereby failing to incentivize capital market participation in the construction of such projects.
The stability analysis of each equilibrium point across the four scenarios is presented in Supplementary Information Table B.4.1. Government subsidy levels both influence and are influenced by energy storage operators' engagement and power system transformation.
For example, in December 2022, the People’s Government of Inner Mongolia Autonomous Region issued a document stating that energy storage power stations included in the region’s demonstration projects will enjoy capacity subsidies, with a subsidy of 0.35 yuan per kilowatt-hour for actual discharges, and the subsidy period will not exceed ten years”.