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Best Solar Installers in Donegal (2026)

Data compiled by Solar Info editorial teamUpdated 8 May 2026

10 SEAI-registered solar panel installers featured for Donegal. Selection is based on SEAI registration, Google reviews, home-county presence, word of mouth, and the feeling amongst Irish solar Facebook groups. 10 have their head office in Donegal. The list below is randomised, not ranked 1-10. Every one of these 10 has earned its place. A typical 4 kWp system in Donegal generates around 3,268 kWh per year.

Fact-checked by John Rooney, Solar Energy Editor. Editorial policy

How we selected these installers

  • SEAI registration is required. Only installers on the public SEAI register are eligible. homeowners need this to claim the €1,800 grant.
  • Home-county presence first. Installers headquartered in Donegal fill the list before installers from neighbouring counties.
  • Google reviews rating and volume. Score = average rating × log10(review count + 1). This rewards consistent ratings across many jobs over a single perfect review.
  • Word of mouth and Facebook groups. We monitor the major Irish solar PV Facebook communities for which installers homeowners actually recommend, and which ones come up for the wrong reasons.

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All Donegal installers

The full directory of every solar installer serving Donegal.

SEAI grant in Donegal

How the €1,800 SEAI solar PV grant works in Donegal.

Solar panel costs in Donegal

2026 pricing, output, and payback for Donegal.

This page is maintained editorially by Solar Info. We update the list quarterly as new review data and SEAI registrations come in. Spotted an error? Let us know.