Research on the deep peak-shaving cost allocation mechanism considering the responsibility of the load side

Abstract

With the goal of carbon reduction, China has carried out a series of institutional reforms and innovations in renewable energy consumption. However, the existing allocation rules for peak-shaving costs concentrate on the power side only. In the context of high energy penetration rates, peak-shaving cost significantly increases, and the economic pressure on the power side sharply increases. As the beneficiaries of peak shaving, the load side, while enjoying clean energy, also needs to bear the responsibility of peak shaving and share part of the peak-shaving cost. In this regard, this paper proposes a peak-shaving cost allocation mechanism considering load-side participation. First, it uses the marginal contribution theory to establish the peak-shaving value evaluation model of the power and load. Then, based on the waveform similarity theory, it sets two indicators “Fluctuation Trend Similarity” and “Waveform Amplitude Difference” to evaluate each load’s renewable energy consumption responsibility. Finally, the peak-shaving cost allocation rules on the power source side and the load side are obtained. An example shows that the proposed allocation mechanism can initially realize the uniform distribution of power and load in peak-shaving cost. Furthermore, the method can promote the fairness of the peak-shaving market and guide users to reasonably participate in the peak-shaving market.

Evaluating and aggregating the grid-support capability of energy storage clusters by considering the peak regulation requirements

“…The integration of a high proportion of renewable energy has become an inevitable trend in power grid development (Leng and Zhang, 2023). Meanwhile, the intermittency and volatility of renewable energy sources will become crucial factors affecting the peak-to-valley difference in the power system (Yang et al, 2023). In addition, the output adjustment range and speed of traditional energy sources such as conventional thermal power and cogeneration are limited and cannot meet the peak load regulation requirements of future power systems.…”