An energy storage roadmap study incorporating government subsidies
This study proposes a subsidy mechanism optimizing fiscal interventions for energy storage development, coupled with Monte Carlo-based revenue projections generating
Government subsidies play a pivotal role in energy storage industry development, stimulating operator investment and system participation while ensuring power system benefits. As shown in Fig. 1, this creates dynamic interactions among government regulators, energy storage operators, and the broader power system entities.
In 2022, electricity generation at power plants of Central Asian energy systems operating in parallel increased to 102,524.5 million kWh, up 4281.0 million kWh or 4.4% from 2021. Thermal power plants accounted for 76.7 % of for 2.4%.
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.
Additionally, the energy storage capacity subsidy is a one-time payment of 200 CNY/kW, while there are ongoing subsidies for charging and discharging (0.5 CNY/kWh) and for peak-valley arbitrage (0.7 CNY/kWh). The energy storage system is assumed to operate for 300 days annually, with two charge-discharge cycles per day.
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