Impact of domestic PV systems in the day-ahead Iberian electricity market

• Published in: Solar energy Vol. 217; pp. 15 - 24
• Main Authors: Roldán-Fernández, Juan Manuel, Burgos-Payán, Manuel, Riquelme-Santos, Jesús Manuel
• Format: Journal Article
• Language: English
• Published: New York Elsevier Ltd 15.03.2021; Pergamon Press Inc
• Subjects: Carbon dioxide; Carbon dioxide emissions; Cost benefit analysis; Electric power; Electric power loss; Electricity; Electricity consumption; Electricity markets; Photovoltaic cells; Photovoltaic systems; Photovoltaics; Prosumers; Renewable energy sources; Self-consumption; Solar energy; Supply and demand; Photovoltaic systems; Renewable energy sources; Supply and demand; Prosumers; Electricity markets; Self-consumption; Cost benefit analysis
• ISSN: 0038-092X; 1471-1257
• DOI: 10.1016/j.solener.2021.01.065

[Display omitted] •Effect of PV self-consumption on the Iberian electricity market is analysed.•The development of PV self-consumption in Spain leads to a reduction in the demand.•Iberian consumers benefit from a reduction of the clearing price. The integration of residential photovoltaic (PV) systems for self-consumption is expected to unlock a variety of economic, technical and social benefits, such as the creation of local work and the reduction of the price of electricity, CO2 emissions and electrical power losses in the transmission network. In spite of all these advantages, regulatory barriers prevented the development of renewable self-consumption in Spain prior to October 2018, when a new regulation introduced the right to self-consume electrical energy without charges. This work aims to estimate the effect of residential self-consumption on the Iberian electricity market. To achieve this goal, a ceteris paribus approach was adopted, the accumulated scattered PV self-production was turned into a reduction of the aggregate demand in the market and the new clearing point was established. Based on 2017 market data, the results showed that a 1% curtailment of the annual demand due to PV self-consumption could reduce the cost of the market-traded energy by almost 2%.