As of 2021[update], the island of Ireland had 5,585 MW of installed wind power capacity, with 4,309 MW in the Republic of Ireland. In 2020, wind provided over 86% of Ireland's renewable electricity and generated 36.3% of Ireland's electricity demand, one of the highest percentages globally.[1][2] In 2023, Wind Energy Ireland confirmed that wind farms provided 35 per cent of Ireland and Northern Ireland’s electricity in 2023, totaling a record breaking 13,725 gigawatt-hours (GWh).[3] Ireland has over 300 wind farms, mostly onshore. A Public Service Obligation subsidy supports renewable energy and wind power development, driven by concerns over energy, security, and climate change mitigation.