Impact of Renewable Energy Integration on Market-Clearing Results in Spot Market Environment

doi:10.16183/j.cnki.jsjtu.2021.329

Abstract

Abstract:

It is urgent to vigorously develop renewable energy to achieve the goal of “carbon peaking and carbon neutrality”. Unlike traditional thermal units, the marginal cost of renewable energy units is zero. With the reform of the electricity spot market, renewable energy is bound to have a huge impact on the market-clearing results and the operation of the power system. Considering the actual spot market operating rules, an electricity spot market simulation framework is established based on the security-constrained unit commitment and economic dispatch models for the operation simulation of the electricity spot market. Taking the actual data of a provincial power grid as an example, a quantitative analysis of the impact of renewable energy on the market-clearing results in the spot market environment is conducted. The simulation results show that, in the spot market environment, the participation of renewable energy will reduce the average electricity price, the system operating costs, and the renewable energy accommodation. At the same time, the profit space of the market units will be compressed.

Key words: renewable energy generation, electricity spot market, spot market simulation framework, market-clearing price, renewable energy accommodation

CLC Number:

WEI Lishen, FENG Yuang, FANG Jiakun, AI Xiaomeng, WEN Jinyu. Impact of Renewable Energy Integration on Market-Clearing Results in Spot Market Environment[J]. Journal of Shanghai Jiao Tong University, 2021, 55(12): 1631-1639.

Figures/Tables 9

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地区/国家	市场报价方式	新能源参与方式	价格机制
广东	发电侧报量报价	优化发电,不参与市场	节点边际电价
浙江	发电侧、用户侧报量报价	优先发电,不参与市场	节点边际电价
山东	发电侧报量报价	优先发电,不参与市场	节点边际电价
四川	发电侧报量报价	优先发电,不参与市场	系统边际电价
山西	发电侧报量报价	优先发电,不参与市场	系统边际电价
甘肃	发电侧、用户侧报量报价	保障性收购,其余报量报价	区域边际电价
蒙西	发电侧报量报价	保障性收购,其余报量报价	区域边际电价
美国	发电侧、用户侧报量报价	报量报价参与市场	节点边际电价
英国	发电侧、用户侧报量报价	固定上网电价	系统边际电价
澳大利亚	发电侧、用户侧报量报价	固定上网电价	节点边际电价

新能源参与方式	2021年(新能源渗透率:19.52%)			2025年(新能源渗透率:25.68%)
新能源参与方式	平均出清电价/ [元·(MW·h)^-1]	平均发电成本/ [元·(MW·h)^-1]	新能源消纳率/%	平均出清电价/ [元·(MW·h)^-1]	平均发电成本/ [元·(MW·h)^-1]	新能源消纳率/%
作为边界条件	300.37	257.02	99.98	308.74	248.77	99.90
报量报价	296.93	256.12	99.77	289.92	244.89	98.54