Written answers

Wednesday, 28 May 2025

Department of Communications, Climate Action and Environment

Renewable Energy Generation

Photo of Pa DalyPa Daly (Kerry, Sinn Fein)
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74. To ask the Minister for Communications, Climate Action and Environment to specify the agreed or provisionally agreed auction contracts under RESS 1, RESS 2, RESS 3 and RESS 4 respectively; the number of successful projects; the total capacity of successful projects; and the percentage share of total successful projects that are that are wholly or partly owned by ESB and its subsidiaries, in tabular form. [28293/25]

Photo of Darragh O'BrienDarragh O'Brien (Dublin Fingal East, Fianna Fail)
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Under the Programme for Government, Government reaffirmed the target of increasing renewable generation to supply 80% of our electricity demand and to continue the annual Renewable Electricity Support Scheme (RESS) auction programme to underpin this.

The RESS auctions provide pathways for renewable developers to plan and develop their projects, with supported technologies including, but not limited to, onshore wind, solar, and hybrids (co-located wind, solar, and/or storage).

Details of projects successful in each of the RESS auctions are publicly available on the EirGrid RESS website, and RESS projects which have energised and are eligible for PSO support are listed on the annual PSO Statutory Instrument, the most recent of which can be found on the statute book website here: www.irishstatutebook.ie/eli/2024/si/377/made/en/pdf.

Given the Department's role in overseeing the RESS auctions and potential regular changes in the corporate structure of projects, it is not appropriate or feasible to provide a breakdown of ownership of RESS projects by an individual company. Information submitted at the time of the auction was at a point in time, and ownership (either in part or in its entirety) could have changed in the period since the auction. The ownership, partial ownership and potential ownership of individual projects is submitted to and taken into account by the CRU in the role of determining competition within individual RESS auctions.

The table below sets out the aggregate information requested for the four onshore RESS auctions held to date:



Successfulprojects


Unsuccessfulprojects
Successful MW Unsuccessful MW Successful GWh Unsuccessful GWh
RESS 1 82 26 1,276 283.4 2,236.7 317.24
RESS 2 80 50 1,948 999.8 2,747.9 1,024.5
RESS 3 23 8 646 247.7 934.48 289.09
RESS 4 27 16 1,334 513 2,071 513

Photo of Pa DalyPa Daly (Kerry, Sinn Fein)
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75. To ask the Minister for Communications, Climate Action and Environment to specify the agreed or provisionally agreed auction contracts under ORESS 1 and ORESS 2.1 respectively; the number of successful projects; and the total capacity of successful projects and the percentage share of total successful projects that are that are wholly or partly owned by ESB and its subsidiaries, in tabular form. [28294/25]

Photo of Darragh O'BrienDarragh O'Brien (Dublin Fingal East, Fianna Fail)
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The Renewable Electricity Support Scheme (RESS) supports delivery of our Climate Action Plan target of meeting 80% of electricity demand from renewable energy sources by 2030.

In 2023, my Department staged our first offshore wind auction under the RESS, known as ORESS 1. Of the six participants in the auction, four projects were successful and were awarded supports under the RESS. These four projects accounted for a total capacity of approximately 3.1 GW. None of the four successful projects involved ESB or its subsidiaries. The Sceirde Rocks project, which had been successful in ORESS 1 has subsequently withdrawn from ORESS 1.

My Department's next offshore wind auction, known as ORESS Tonn Nua (formerly ORESS 2.1), is expected to take place in quarter four of 2025. This auction will be for a single 900 MW site located off the coast of Waterford in the South Coast DMAP, approved by the Oireachtas in October 2024. As such, the information sought by the Deputy in respect of ORESS 1 is attached with this answer.

ORESS 1 Successful Projects Capacity MW % ESB ownership
Codling Wind Park 1,300 Nil
Sceirde Rocks Windfarm

(No longer participating in ORESS 1)
450 Nil
Dublin Array 824 Nil
North Irish Sea Array 500 Nil
TOTAL 3,074

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