Octopus Energy Generation has invested in three operational Irish solar farms totalling 43MW across Kildare and Cork, a deal that extends UK capital's role in Ireland's solar buildout just as the country passes 3GW of installed utility-scale solar capacity and sets a new peak generation record. The three sites, already up and running, will supply clean power to around 10,000 Irish homes.

Octopus Energy Generation is the UK-based renewables investment arm of Octopus Energy, one of Europe's largest specialist energy transition investors, now holding more than 300MW across nine Irish sites capable of powering over 82,000 homes annually.

ISIF (Ireland Strategic Investment Fund) is Ireland's sovereign development fund, managed by the National Treasury Management Agency, which has committed £80 million to Octopus's Sky fund as part of a wider €1 billion climate investment programme running through 2029.

Darragh O'Brien, Minister for Climate, Energy and the Environment, said the investment is hugely welcome as solar growth in Ireland continues to strengthen our energy security and clean electricity capacity. Zoisa North-Bond, chief executive of Octopus Energy Generation, said Ireland has what it takes to become a clean energy powerhouse and that the deal is only the beginning.Rebekah Brady, interim director of ISIF, said the fund welcomes the ongoing investment activities of the Octopus Energy Generation Sky fund in supporting the energy transition in Ireland.

One of the Kildare sites converting a former golf course mirrors a precedent already proven in the same county: BNRG's Dunmurry Solar Farm, built on a decommissioned Kildare golf course, won Solar Farm Project of the Year in 2025 after sidestepping planning objections that had blocked a nearby greenfield proposal on elevated land.

That distinction matters given rising political scrutiny of solar on prime agricultural land, with senators and TDs criticising large-scale developments proceeding without dedicated planning guidelines. Repurposed, already-altered sites like golf courses avoid that controversy entirely while retaining existing ecological features such as ponds, hedgerows and rough grassland.

For the sector, UK capital backing already-operational Irish solar rather than funding new construction signals growing appetite for de-risked, revenue-generating assets over earlier-stage development risk, a preference likely to shape where the next wave of international investment lands in the years ahead.

Source: Energy Global / BNRG