Energy Storage Systems: Profitable Through Peak-Valley Arbitrage
Learn how energy storage systems profit through peak-valley arbitrage and distributed energy management.
The peak-valley arbitrage is the main profit mode of distributed energy storage system at the user side (Zhao et al., 2022). The peak-valley price ratio adopted in domestic and foreign time-of-use electricity price is mostly 3–6 times, and even reach 8–10 times in emergency cases.
Conclusion Due to the increased daily electricity price variations caused by the peak and off-peak demands, energy storage systems can be utilized to generate arbitrage by charging the plants during low price periods and discharging them during high price periods.
The benefit of price arbitrage for energy storage is based on storing energy at low-price periods and releasing at high-price periods, where the income results from the price difference.
However, when the proportion of reserve capacity continues to increase, the increase of reactive power compensation income is not obvious and the active output of converter is limited, which reduces the income of peak-valley arbitrage and thus the overall income is decreased.
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