Temporary/event · Co. Mayo
SSE Thermal Tawnaghmore Power Station, Tawnaghmore Upper, Killala Co. Mayo
Granted 11 Aug 2026
Key facts
- Planning application 2660480 at SSE Thermal Tawnaghmore Power Station, Tawnaghmore Upper, Killala Co. Mayo: Application will replace the previous consented.
- The applicant is Sse Renewables Ireland Ltd. The agent is Caitriona Fox.
- It was received by Mayo County Council on 19 Jun 2026.
- Status: Granted 11 Aug 2026.
- Permission was granted on 11 Aug 2026 and no site start has been filed yet. The next step is a commencement notice, filed before building work begins; the start date and who will build it are not known yet.
Source: the Mayo County Council planning register, checked 2 Sep 2026. Open the council's file
What and where
Application will replace the previous consented
The Application will replace the previous consented (but unbuilt) BESS facility granted under planning ref (25/60108). The development will consist of the following elements: • BESS facility including battery containers with integrated HVAC (heating, Ventilation, Air Conditioning) units, transformers, inverters, underground cabling, internal access roads, lighting, CCTV and perimeter fencing; • Associated Electrical Compound consisting of a Low Voltage Operations Independent Power Producer (IPP) Compound including a single storey control and operations building, switchgear room, storage container, car parking, welfare/office facilities; • High voltage electrical yard and Eirgrid 110kV substation building; • 264 meters long 110kV single circuit underground grid connection (UGC) within SSE lands and 119 meters within the existing ESB 110kV Substation lands to facilitate the grid connection to the existing adjacent Tawnaghmore substation; • Proposed internal access tracks to BESS facility, including 4 no. new gate entrances • Reinforced concrete and retaining walls; • A temporary construction compound and associated temporary infrastructure to facilitate the development; • Associated landscaping, drainage, decommissioning of existing septic tank and ancillary works. A 10-year permission is sought in respect of the development. Certain details of the proposed development are unconfirmed in the planning application, and an opinion on unconfirmed details accompanies the application. The Tawnaghmore Power Station has an Environmental Protection Agency (EPA) issued Industrial Emissions (IE) Licence (Reg, No. P0566-02).
- Location
- Tawnaghmore Upper, Co. Mayo Map
- Council
- Mayo County Council
- Planning reference
- 2660480
- Applicant
- Sse Renewables Ireland Ltd
- Agent
- Caitriona Fox
Numbers and dates
- Project type
- Temporary/event
- Received
- 19 Jun 2026
- Granted
- 11 Aug 2026
Timeline
- Application received
- Granted
Site history
This site's history
-
Earlier permission 2560108 for this site: granted 24 Apr 2025.
The development will consist of the following elements: • Battery Energy Storage System facility, consisting of battery containers with… Named in this application's description
Earlier records are the planning references this application names, records at the same address, and records within 50 m of the same map point. An address or a map point can cover more than one property, so check the council's file before relying on a match.
Outlook
What happens next
Work packages named so far
Documents and evidence
Check the record
- Council planning fileThe application file 2660480 on eplanning.ie: drawings, reports and the decision.Open the council's file
How we know this
From the Mayo County Council planning register, checked 2 Sep 2026. We link to the council's own file so you can check the official record before you act.
Explore the area