研究目的
To propose and evaluate the integration of photovoltaics (PV) into a coal-fired power plant to reduce auxiliary power consumption and emissions, and to avoid the curtailment of solar PV electricity.
研究成果
The integration of a 1MW PV system into a 700MW coal-fired power plant can compensate for auxiliary power consumption, reduce CO2 and SO2 emissions, and avoid solar curtailment. The system is economically attractive with a total net cost of approximately 425,000 USD over 25 years.
研究不足
The study focuses on a specific case in the northwest area of China, which may not be representative of all coal-fired power plants. The economic feasibility is based on current costs and may vary with market fluctuations.
1：Experimental Design and Method Selection:
The study proposed integrating a PV system into a coal-fired power plant to power auxiliary devices. The performance was evaluated through a case study in the northwest area of China.
2：Sample Selection and Data Sources:
A 700MW coal-fired power plant in northwestern China was selected as a case study. Solar radiation data was sourced from the Meteonorm7 database.
3：List of Experimental Equipment and Materials:
A PV system with a capacity of 1MW was assumed to be installed in the power plant.
4：Experimental Procedures and Operational Workflow:
The PV system's output was calculated based on local horizontal irradiance and the installed PV system's capacity. The auxiliary power consumption of the coal-fired power plant was calculated based on the utilization hours of the steam turbine and the rate of auxiliary power consumption.
5：Data Analysis Methods:
The contribution rate of the PV system to the coal-fired power plant, the amount of coal consumption reduced by the PV system, and the CO2 and SO2 emissions reduced by the PV system were calculated.
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