Among the four groups of electricity prices, the peak electricity price and flat electricity price are gradually reduced, the valley electricity price is the same, and the peak-valley electricity price difference is 0.1203 $/kWh, 0.1188 $/kWh, 0.1173 $/kWh and 0.1158 $/kWh respectively. Table 5. Four groups of peak-valley electricity prices.
It generates revenue though electricity price arbitrage and reserve service. The BESS''s optimization model and the charging-discharging operation control strategy are established to make maximum revenue. The simulation study is based on one-year data of wind speed, irradiance, and electricity price in Hangzhou City (Zhejiang Province, China).
As the peak-valley electricity price difference, annual average irradiance and annual average wind speed decrease, the optimal allocation capacity and the annual net revenue of the BESS also decrease.
Among them, the ratio of the electricity revenue of the BESS to the reserve ancillary services revenue is about 5:1. Sensitive analysis considering various peak-valley prices of one day and RE resource conditions is further calculated and discussed. The generated revenue trend is calculated and optimization capacity of BESS is suggested.
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