The fourth onshore RESS auction, RESS 4, will be an important contribution towards Ireland’s 2030 renewable electricity target of 80% as set out in Climate Action Plan 2023. CAP23 set a target of 9 GW of onshore wind, 8 GW of solar and at least 5 GW of offshore wind by 2030. The Climate Action Plan 2024, which was published in December 2023, set out revised sectoral emission targets consistent with the carbon budgets for the period 2021-2025 and 2026-2030. Delivery of the fourth onshore RESS auction, RESS 4, is one of the key actions for the second carbon budget period (2026-2030) and will therefore represent an important contribution towards Ireland’s 2030 renewable electricity targets.