Planning applications in Kellistown East

• the replacement (“restringing”) of the existing overhead line circuit conductor wires with a new higher capacity conductor • the strengthening of foundations at 7no. locations • shear block remedial works at 77no. locations • the strengthening of towers (i.e., member replacement) at 34no. locations • the replacement of 5.1km of earthwire • the painting of all structures • the replacement of insulating and ancillary hardware at structures • all associated works within the existing Kellis 220kV substation to accommodate the uprated 220kV OHL including uprating of the Great Island bay in Kellis 220kV substation • the installation of a temporary link between the Great Island – Kellis and Dunstown = Kellis 220kV OHLs to create a temporary circuit, which will include the erection of a temporary four-pole timber structure between the existing Angle Mast 191 on the Great Island- Kellis circuit and the existing Angle Mast 157 on the Dunstown – Kellis circuit • all associated temporary site development works to gain access to the existing structures including vegetation clearance and management, disassembly and reassembly of gate posts/piers and removal and reinstatement of existing fencing, and • other temporary associated and ancillary site development works required for the purpose of the uprate of the existing circuit, including construction compounds, silt traps, silt fences, vegetation clearance and management, stone tracks, ground protection mats, infrastructure crossing support systems (i.e., guard poles) and temporary watercourse crossings. Where required, an aerial catenary stringing system (ACSS) will be used to facilitate stringing operations over major obstacles, e.g., busy national roads, wide rivers, etc. A Natura Impact Statement will be submitted to the Planning Authority with the application. Please see Site Notice for full development description

Great Island to Kellis 220kV , Kellistown East , Co. Carlow · 16 Dec 2024

Permission for a 10 year planning permission for the development of a synchronous condenser grid support facility, which will connect to the adjoining ESB Kellistown Electricity Substation. The proposed development will have a projected life span of 50 years. At the end of life the proposed development can either be decommissioned or refurbished to extend its life. The development is to be located within a site compound c. 1 ha. It will regulate reactive power on the electricity network and will consist of the following elements: a building (c. 540 sqm. c. 10m high) to house equipment including a synchronous condenser with flywheel, lube oil skid, air compressor and pumps. Equipment to be located outside the footprint of the building but within a fenced compound will include cooling equipment (c. 160 sqm. c. 3m high) 6 No. modular containers to house electrical and control equipment (total area of c. 195 sq m c. 5m high), a step-up transformer, an auxiliary transformer, an external circuit breaker, electrical balance of plant, 1 No. firefighting water tank, above ground oil separator and collection pit c. 100m of underground cabling ducts and cable to the adjoining ESB substation, balustrade boundary fencing, security entrance gate and CCTV, all other ancillary and miscellaneous site works to include site clearance, site access, internal roads and development of areas of hard standing and lay-down area. The proposed development will connect by underground cable to the Electricity Supply Board (ESB) 220kV substation adjoining the western boundary of the proposed development site. This underground cabling will not form a part of the transmission networks as defined in Section 2(1) of the Electricity Regulation Act 1999

Kellistown East , Co. Carlow · 17 Nov 2021

Permission for a 10 year planning permission for the development of a synchronous condenser grid support facility, which will connect to the adjoining ESB Kellistown Electricity Substation. The proposed development will have a projected life span of 50 years. At the end of life the proposed development can either be decommissioned or refurbished to extend its life. The development is to be located within a site compound c. 1 ha. It will regulate reactive power on the electricity network and will consist of the following elements: a building (c 540 sqm. c 10m high) to house equipment including a synchronous condenser with flywheel, lube oil skid, air compressor and pumps. Equipment to be located outside the footprint of the building but within a fenced compound will include cooling equipment (c 160 sqm. c 3m high) 6 No. modular containers to house electrical and control equipment (total area of c 195 sq m c 5m high), a step-up transformer, an auxiliary transformer, an external circuit breaker, electrical balance of plant, 1 No. firefighting water tank, above ground oil separator and collection pit c 100m of underground cabling ducts and cable to the adjoining ESB substation, balustrade boundary fencing, security entrance gate and CCTV, all other and miscellaneous site works to include site clearance, site access, internal roads and development of areas of hard standing and lay-down area. The proposed development will connect by underground cable to the Electricity Supply Board (SESB) 220kV substation adjoining the western boundary of the proposed development site. This underground cabling will not form a part of the transmission networks as defined in Section 2(1) of the Electricity Regulation Act 1999.

Kellistown East , County Carlow · 13 Oct 2021

Kellistown East Battery Energy Storage Facility

a 10-year permission for the development. The development will consist of the construction of BESS, tail-fed 220kV step-up transformer and all associated ancillary development on ca.6.5 hectare (‘ha’) site consisting of: (i) 210 BESS units each containing six power conversion system units; (ii) 30 static smart transformer stations units; (iii) 60 distribution transformers units; (iv) one auxiliary services building; (v) one office building; (vi) one control building; (vii) one storage building; (viii) one tail-fed 220 kV step-up transformer; (ix) one auxiliary transformer; (x) one Independent Power Producer (‘IPP’) building with two switchgear rooms and auxiliary systems; (xi) one underground firewater retention holding tank (ca.350m³ capacity); (xii) one firewater tank (ca.250m³ capacity); (xiii) one infiltration basin (ca.1,689m³ capacity); (xiv) upgrade works to the existing Site entrance; (xv) internal access tracks between the BESS units, IPP Building and Site entrance; (xvi) underground electrical and communications cabling within private lands; (xvii) one temporary construction compound; (xviii) landscaped berms of up to ca.3m in height; (xix) perimeter security fencing of up to 2.4m in height and security gates; (xx) pole-mounted security cameras; and (xxi) all associated ancillary site development, landscaping and reinstatement works. A 40-year operational life from the date of full commissioning of the entire BESS project is being sought for the proposed development (other than temporary works specified above), and the subsequent decommissioning. A Natura Impact Statement will accompany the planning application

Kellistown East, Co. Carlow · 18 Sept 2026

Ten year planning permission for the development of an up to 100MW Battery Energy Storage Facility that will provide energy services to national grid. The development will consist of construction and operation of up to 34 metal containers to store up to a project total of up to 100MW (13.2 tons of Lithium lon) sealed battery cells each with entrances, fire supression systems, Heating Ventilation and Air Conditioning systems, Inverters, control systems, other electrical components, security lighting and ancillary infrastructure and all associated works including security fencing and ancillary grid infrastructure on lands at Kellistown East, County Carlow.

Kellistown East , Co. Carlow. · 1 Feb 2018