Battery Energy Storage Facility, Stonestown, Co. Offaly

Application details

Planning reference

2660509

Council

Offaly County Council

Proposal description

• A battery energy storage system (BESS) facility, comprising battery containers with integrated heating, ventilation, air conditioning (HVAC) units, transformers, inverters, underground cabling, associated control rooms, internal access routes, lighting, CCTV, lightning masts, fencing;• An associated Electrical Compound consisting of: o A low voltage operations compound including one single storey control and operational building, o Electrical plant and equipment, o Cabling, lighting, CCTV, lightning masts; o A backup diesel generator and diesel storage tank; and o Operations and maintenance storage containers. • A high voltage electrical yard comprising outdoor electrical plant and associated infrastructure; • An underground high voltage electrical cable to facilitate a connection to the existing adjacent Stonestown 110kV substation, with an over the fence connection representing the preferred connection strategy; •A peat and spoil area for excavated peat generated during construction of the Proposed Development. Materials stored within the peat and spoil area will be retained within the Proposed Development over its operational lifetime; •Associated landscaping, drainage, and all ancillary works necessary to facilitate the construction, operation and maintenance of the Proposed Development; •Construction of 1 no. Temporary Construction Compound with associated temporary site offices, staff parking area, welfare facilities, and security fencing; •Ancillary forestry felling to facilitate construction and operation of the Proposed Development; •A planning permission duration of 10 years from the date of grant for construction of the Proposed Development; and•An anticipated operational life of 35 years from the date of commissioning of the entire Proposed Development. Certain details of the Proposed Development are unconfirmed in the planning application, and an opinion on unconfirmed details from Offaly County Council pursuant to Section 32H(1) of the Planning and Development Act 2000 (as amended) accompanies this planning application. The details unconfirmed in this application are battery height, length and number of battery containers. The range of parameters under which the battery storage will fall are specified in the design flexibility opinion that accompanies this application. The planning application is also accompanied by a Natura Impact Statement

Location / address

Townlands of Coolreagh or Cloghanhill, Cortullagh or Grove, Stonestown, and Lumcloon Co. Offaly., Offaly, Co. Offaly

Applicant

Bord na Móna Powergen Ltd

Application type

PERMISSION

Received / registered

25 Sept 2026

Valid date

25 Sept 2026