Cold April raised Czech electricity demand; solar output topped 600 GWh for third time

Czech solar power plants were again the third-largest source of electricity in April, after nuclear and lignite-fired power plants. According to data published on Energostat, they supplied 612 GWh of electricity to the grid, the third-highest monthly figure in history. These sources generated more electricity only in June and August last year. Strong solar generation in April led to frequent drops in day-ahead electricity prices into negative territory. On Sunday, 26 April, prices even approached the price floor of -500 EUR/MWh several times.

According to data published on the website of Czech market operator OTE, a.s., April, with an average temperature of 8.3 degrees Celsius, was 0.4 degrees Celsius below the long-term temperature norm. By comparison, the average temperature in April 2025 was more than 2 degrees Celsius higher. Cooler weather brought a year-on-year increase in electricity consumption in the Czech Republic of 4.3 % to 5.15 TWh. Compared with March, electricity consumption in April fell by almost 0.5 TWh.