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SSE Thermal Tawnaghmore Power Station , Tawnaghmore Upper , Killala Co. Mayo

Jun 19 2026

Application Received

Aug 11 2026

Decision

Aug 13 2026

Decision Due

Sep 14 2026

Granted

Sep 13 2031

Expiry (if required)
  • Submitted: 19 / 06 / 2026
  • Application Type:
    PERMISSION
  • Application Status:
    APPLICATION FINALISED
  • Council Decision:
    CONDITIONAL (Granted)

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Development Description:

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).

Nearby Applications:

Distance: Received: Decision: Development Address: Development Description:
2km 04/09/2026 N/A Moyne , Killala , Co Mayo construct a dwelling house and septic tank/ proprietary effluent treatment system together with all ancillary site works and services Details...
1.7km 27/07/2026 CONDITIONAL Kilroe Townland , Killala , Co Mayo retain side elevation as built to existing house together with all ancillary site works and services Details...
2.9km 15/04/2026 N/A Croghan , Killala , Co.Mayo Planning Permission for development consisting of construction of a new slatted cubicle shed and underground slurry storage tanks along with all associated site works. There will be one building and all effluent will be collected and stored in the proposed/existing slatted tanks for the new shed slatted shed. The slatted shed will be 7.45m in height and is going to be constructed in an existing farmyard our clients family have been farming in for years. Details...
1.4km 07/04/2026 CONDITIONAL Lisglennon , Killala , Co. Mayo construct 68 no. x 585w ground mounted solar panels, an over ground slurry storage silo and all associated site works, Retention planning for as constructed slatted cubicle shed, calf shed and lean-to slatted shed and all associated site works Details...
1.5km 20/03/2026 CONDITIONAL Ballybroony , Killala , Co. Mayo This development will consist of Retention Permission of existing dwelling house and garage, existing access and boundaries, including all other ancillary site works and services. Details...
2.6km 11/02/2026 CONDITIONAL Ballybroony , Killala , Co. Mayo Planning permission to (1) Alter and extend existing dwelling house, (2) Upgrade existing wastewater treatment system, and (3) Carry out all required ancillary works on site Details...
1.5km 10/02/2026 N/A Ballybroony , Killala , Co. Mayo This development will consist of Permission to 1) Demolish existing detached single storey dwelling house and 2) Construct replacement single Storey detached dwelling house, including all other ancillary site works and services. Details...
2.1km 20/11/2025 CONDITIONAL Moyne Townland , Moyne , Killala for the construction of a new dwelling house, effluent treatment plant with associated percolation area, new entrance onto public road, connection to existing services and all associated ancillary site works Details...
1.6km 18/11/2025 CONDITIONAL Crosspatrick , Killala , Co. Mayo The development will consist of the change of approved house design (P24/60564 Refers) Details...
1.8km 30/09/2025 N/A Killala Community Centre , Ballina Road , kILLALA CO MAYO Section 5 Declaration; repair or replace the weatherproof membrane on the roof of Killala Community Centre Details...
2.8km 19/08/2025 CONDITIONAL Rathowen West , Killala construction of a dwelling house and domestic garage/shed and all associated site works Details...
2km 15/08/2025 N/A Moyne , Killala construct a dwelling house and septic tank/proprietary effluent treatment system together with all ancillary site works and services Details...
1.9km 14/08/2025 CONDITIONAL 15 Sea view Terrace , Killala , Co.Mayo The application will consist of planning permission to (1) Alter and extend existing dwelling house, (2) Widen existing entrance by 1.00 meter, and (2) Carry out all required ancillary works on site. Details...
2.3km 09/05/2025 CONDITIONAL The Acres , Killala dwelling house and an independent living unit with secondary treatment system together with all ancillary site works and services Details...
2km 01/04/2025 CONDITIONAL Barrack Street , Killala , Co. Mayo 1. Construction of a pitched roof over the existing domestic garage, 2. Conversion of the existing domestic garage to an ancillary kitchen (exempted class 1 development), 3. Construction of a patio door and WC window to the rear ground floor elevation together with all ancillary site works. Details...
90m 28/02/2025 CONDITIONAL SSE Thermal Tawnaghmore Generation Station , Tawnaghmore Upper , Kilala Co. Mayo The development will consist of the following elements: • Battery Energy Storage System facility, consisting of battery containers with integrated HVAC (Heating, Ventilation, Air Conditioning) units, transformers, inverters, underground cabling, associated control rooms, internal access routes, lighting, CCTV, lightning masts, fencing; • Associated Electrical Compound consisting of: Low voltage operations compound including one (1) single storey control and operational building, electrical plant, cabling, lighting, CCTV, lightning masts, diesel generator and diesel tank, operations and maintenance containers and stores; • High voltage electrical yard comprising outdoor electrical plant and associated compound; • Underground high voltage electrical cable to facilitate a connection to the existing adjacent 110kV Tawnaghmore substation; • Associated landscaping, drainage, decommissioning of existing septic tank and all ancillary works necessary to facilitate the development 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). Details...
250m 21/11/2024 CONDITIONAL Mullafarry and Tawnaghmore Upper , Killala , Co. Mayo The construction of a single data centre building located to the north of the site, with an overall gross floor area of c. 29,076 sq.m across two levels and an overall maximum height of c. 22.764m at parapet level. The data centre building includes data halls and associated electrical and mechanical plant rooms (c. 23,908 sq.m), an administrative and staff services block (c. 5,052 sq.m) and circulation and stairs (c. 116 sq.m). 2 no. external terraces are proposed to the east of the building (c. 309 sq.m) and an external generator yard to the south of the building (c. 5,205 sq.m) accommodating 25. no. backup / dispatchable generators and associated flues (to a height of c. 21.164m) within an enclosed compound. The construction of a sprinkler tank and pump house to the northeast of the site, the sprinkler tank is an overall height of c. 7.2 m and the pump house is a single storey building with an overall height of c. 4.15m and area GFA of c. 40.23 sq.m. The construction of an entrance hut at the main access to the south of the site, the hut is an overall height of c. 3.225m and area GFA of c. 11.6 sq.m. Construction of 2 no. site access points from the south and internal road network and circulation areas, footpaths, cyclist infrastructure, the provision of 56 no. car parking spaces (including 12 EV charging spaces and 7 disabled spaces, 3 of them EV), 20 no. cycle parking spaces, hard and soft landscaping and planting, site lighting, PV panels and plant at roof level, foul water connection connecting to existing WWTP in Killala Business Park, boundary treatments, green walls and all associated and ancillary works including underground foul and storm water drainage network and utility cables and all ancillary works and services. An EPA-Industrial Emissions Directive (IE) licence will be applied for to facilitate the operation of the proposed development. An Environmental Impact Assessment Report (EIAR) and a Natura Impact Statement (NIS) will be submitted to the Planning Authority with the planning application and the EIAR and NIS will be available for inspection or purchase at a fee not exceeding the reasonable cost of making a copy at the offices of the Planning Authority. Details...
1.9km 15/11/2024 CONDITIONAL Rathglass East , Killala , Co.Mayo Planning Permission for Development consisting of construction of a storage shed & new slatted shed and underground slurry storage tank along with all associated site works. There will be two buildings and all effluent will be collected and stored in the proposed/existing slatted tanks. The slatted shed will be 7.067m in height and the storage shed will be 6.910m in height they are to be constructed in an existing farmyard our clients family have been farming in for years. Details...
470m 15/11/2024 CONDITIONAL Killala Business Park , Tawnaghmore Lower Killala , Co. Mayo We, Schutz (Ireland) Ltd., intend to apply for permission for development at this site at Killala Business Park, Tawnaghmore Lower, Killala, Co. Mayo, F26 XY18. The proposed development will consist of the following works: (a) Demolition of part of existing adjoining building to make provision for future extension as part of this application. (b) Demolition of temporary prefabricated buildings. (c) Construction of a fully serviced extension to side of existing building which will create additional production area for the existing facility, external plant mezzanine area and the construction of a two-storey office / admin block to the front of the development. (d) Alterations to elevations of existing building to include new wall cladding and windows. (e) New vehicular entrance off the existing service road to allow for HGV access to the rear of the site. (f) Site works to consist of alterations to existing service road, car parking, EV charging spaces, landscaping, lighting, the provision of a bicycle shelter, smoking shelter, covered outdoor seating area, forklift and gas compound, flag poles, signage and boundary treatments to the site. (g) Connection to existing foul, surface water, watermain and utility services networks. (h) All ancillary and associated site works. A Natura Impact Statement (NIS) will be submitted to the Planning authority in connection with the application. The planning application including the Natura impact statement (NIS) may be inspected at the offices of Mayo County Council during its public opening hours. A submission or observation in relation to the application may be made in writing to the planning authority on payment of the prescribed fee (€20.00) within the period of 5 weeks beginning on the date of receipt by the authority of the application, and such submissions pr observations will be considered by the planning authority in making a decision on the application. The planning authority may grant permission subject to or without conditions or may refuse to grant permission. Details...

Appeals / Commencement

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