The proposed development which will consist of the following elements…

Application details

Planning reference

2560820

Council

Mayo County Council

Proposal description

The proposed development which will consist of the following elements: the installation and operation of 1no. battery energy storage system compound containing battery energy storage containers, 1no. electrical substation and compound, connected to the national grid system via c. 50m of underground cable to the ESB Castlebar 38kV substation, electrical transformers and inverter units, underground cabling and ducting, boundary fencing, security entrance gates, CCTV, internal access road, associated ancillary site development, landscaping and reinstatement works. The operational lifespan of the development will be 35 years. The site of the proposed development has a total area of 0.89 hectares.

Location / address

Aghalusky , Castlebar , Mayo

Application type

PERMISSION

Received / registered

17 Nov 2025

Council decision

CONDITIONAL

Council decision date

12 Mar 2026

Final grant date

13 Apr 2026

Planning timeline

Key dated milestones from the planning record.

1. Application received

   17 Nov 2025

2. Decision: CONDITIONAL

   12 Mar 2026

3. Final grant

   13 Apr 2026