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Irish Solar Generation Surges Setting August Record

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Solar power generation across Ireland jumped 58% during the summer months, hitting a record 7.7% of the national fuel mix in August, Irish grid operator EirGrid reported on Wednesday.

Solar generation across the summer months reached 692 GWh, compared to the 439 GWh recorded during the same period in 2025, it said.

Ireland recorded new generation peaks in August, hitting 1.25 GW on August 11 and an all-time high of 1.3 GW on August 24, surpassing previous highs set earlier in the spring.

Despite these solar gains, wind energy remained the largest renewable contributor at 18% of the August fuel mix, generating 498 GWh.

In the broader energy mix, natural gas accounted for 42% of total electricity used during August, while interconnector imports supplied 26%.

Overall electricity system demand ticked up slightly to 2,796 GWh compared to 2,744 GWh in July, the operator said.

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