Europe Readies for Solar Eclipse Dip in Power Generation
ENTSO-E said output could fall by up to 9.7 GW as operators brief control rooms and share forecasts to keep the grid stable.
- Europe's power grid operators, represented by ENTSO-E, are preparing for next week's solar eclipse, which will cause a temporary dip in power generation. They have taken steps to keep electricity flowing to businesses and consumers.
- With solar energy now comprising about 13% of Europe's electricity mix, operators are managing natural phenomena influencing generation patterns. The eclipse's path of totality crosses Russia, Greenland, Iceland, Spain, and Portugal.
- Under clear-sky conditions, photovoltaic output could decrease by up to 9.7 GW across Europe between 19:15-21:30 CEST. Spain and Germany expect the biggest solar power reductions as the Moon covers the Sun.
- Proactive measures include avoiding planned grid outages to maximize operational flexibility during the eclipse period. Local system operators receive additional updated photovoltaic generation forecasts from weather service providers to support real-time decision-making.
- SolarPower Europe reported that Europe had about 406 GW of installed solar capacity at the end of 2025. The European Network of Transmission System Operators for Electricity coordinates 40 operators across 36 countries.
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Although the solar eclipse will occur in the evening and last for a limited time, it will affect energy production in several European countries. Electricity companies are preparing – and in the UK, households are being urged to avoid running washing machines and dishwashers during the evening.
Dynamic electricity prices are twice as high on Wednesday as the day before due to the solar eclipse. Less solar energy is being generated because of the solar eclipse on Wednesday evening. TenneT warns of a risk of power shortages. ‘With the higher electricity prices, the market has essentially already announced: we have little electricity on offer tonight.’
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