In 2025, 33,048 residential solar PV systems were installed across Ireland, up from 28,423 in 2024. That’s an increase of over 16% year on year, confirming that solar energy is becoming a mainstream choice for Irish homeowners.
Rising electricity costs, greater awareness of government supports, and growing confidence in solar performance in Irish weather are all contributing to this sustained growth.
The table below show how solar panel installations were distributed by county in 2025, highlighting where adoption is strongest.
When compared with 2024 figures, the 2025 data shows that the majority of counties - 85% - recorded an increase in solar panel installations. Growth was not limited to major cities or commuter belts — uptake rose across a broad mix of urban, rural and coastal counties.
While counties such as Dublin and Cork continue to account for the highest overall volumes, strong growth was also evident across Munster, Connacht and parts of the Midlands. Even counties with more modest population sizes are now seeing consistent year-on-year adoption.
Overall, the figures underline a clear national trend: solar energy is no longer a niche or region-specific choice — it’s becoming mainstream across Ireland.
Several factors are driving this continued rise in solar installations:
Together, these factors are helping solar move from “nice to have” to a practical long-term investment for many Irish homes.
If solar panels are being widely installed in your county, it’s a strong indicator that they can work effectively on similar homes nearby. With around 85% of Irish counties seeing year-on-year growth in solar panel installations in 2025, it’s clear that more homeowners than ever are choosing to generate their own electricity. If you’re considering solar, you wouldn’t be alone — thousands of households across Ireland will become part of the solar boom this year.
At Activ8 Solar Energies, we’ve completed over 25,000 installations across Ireland and are celebrating 20 years in business. Our systems are designed for Irish conditions and installed by our own experienced teams, with most home installations completed in a single day.
If you’re curious about what solar could do for your home, now may be the right time to explore your options.
Click the button to return to our blog