within the townlands of Dunany, Mitchelstown Port, Nicholastown (Electoral Division, in the Barony of Ferrard) Boycetown, Togher
Proposed offshore wind farm with 25 wind turbines off the coast of Louth.
SID/03/24 · Fingal County Council · Lodged 22 May 2024
- Reference
- SID/03/24
- Authority
- Fingal County Council
- Register status
- In progress
- Received
- 22 May 2024
Summary
AI-generatedThe proposed offshore renewable energy development consists of 25 wind turbines with a maximum tip height of 270 metres and a combined capacity of 375 MW. It includes an offshore substation, subsea inter-array cables, and a 16 km long subsea export cable.
Generated from the description above by an AI model and may contain mistakes. The council’s description is the authoritative record.
Official record
Development description
- The proposed development consists of the following principal elements: a. Offshore renewable energy infrastructure in the outer maritime area located between approximately 6 km south of cooley point and approximately 10 km north-east of dunany point across an offshore wind farm area of approximately 27.7 km2 and consisting of the following: i. 25 no. Offshore wind turbines with a maximum tip height of 270 m above the lowest astronomical tide (lat)attached to the seabed by monopile foundations with associated scour protection and with a combined maximum export capacity of 375 mw. Ii. A network of 41 km of 66 kv subsea inter-array cables linking each of the proposed offshore wind turbines to the offshore substation including associated cable protection. Iii. 1 no. Offshore substation with a height of 48 m above lat attached to the seabed by a monopile foundation with associated scour protection. This includes a prefabricated structure containing electrical equipment and ancillary equipment including a telecommunications mast. B. A single 16 km long 220 kv subsea export cable and associated cable protection located within an offshore cable corridor of approximately 25 km2 between the south-west corner of the offshore wind farm area and a landfall which is situated approximately 700 m south of dunany point. C. An underground transition joint bay (tjb) at the proposed landfall in the townland of dunany. The tjb consists of a fully buried concrete chamber with a total area of 32.5 m2, where the proposed offshore export cable will be connected to the underground onshore export cables. D. Installation of underground onshore export cables, approximately 20.1 km in length, connecting the proposed tjb in the townland of dunany to the proposed onshore substation in the townland of stickillin. The cables will be laid in a standard trench of approximately 700 mm in width and 1425 mm in depth. E. Installation of fibre optic, telecommunication and other associated cabling all carried in underground ducts within the proposed trench. F. Installation of 2 no. Additional fibre optic cable ducts within the underground cable trench of approximately 1500 mm in width, from the proposed onshore substation in the townland of stickillin along the n33 for approximately 3 km and connection into a 110 kv double wooden pole set on the existing drybridge-louth 110kv overhead line in the townland of richardstown, (electoral division of stabannan). G. Installation of the cables will require associated joint bays and link boxes, located at approximately 700 m intervals along the underground cable alignment. The cable installation will also require the construction of temporary passing bays and the use of either horizontal directional drilling (hdd) or open cut construction techniques for utility crossings of water, rail, gas and motorway. H. A new onshore electricity substation adjacent to the proposed connection point in the townland of stickillin. The onshore substation will comprise of the following main elements: i. Compound 1 onshore transmission connection comprising
- 220 kv gas insulated switchgear (gis) equipment contained within abuilding of approximately 20 m x 60 m and a height of 17 m
- 6 no. Lightning protection poles of approximately 3 m in height located on the parapet of the gis building
- A lattice steel telecommunications mast of 36 m in height
- 5 no. Associated car parking spaces, an internal access road 5 m in width and a house transformer. Ii. Compound 2 offshore transmission system comprising
- 220 kv air insulated switchgear (ais) equipment at an approximate height of 10 m, including a transformer bay, 2 no. Harmonic filter bays, shunt reactor bay, 2 no. Cable bays, 220 kv busbar, and ancillary control equipment
- A control building of 34 m x 10 m and a height of 11 m with up to 6 no. Lightning protection poles of approximately 3 m in height located on the parapet of the building
- A stat com building of 14 m x 28 m and a height of 10 m with associated ancillary equipment
- 12 no. Lightning protection poles of approximately 20m in height will be placed within the compound. It will include a lattice steel telecommunications mast of approximately 36m in height standby diesel generator and a house transformer
- 4 no. Associated car parking spaces and an internal access road 5 m in width. Iii. Entrance compound providing access to compound 1 and compound 2 and including
- A telecommunications building of 15 m x 4 m and a height of 4 m
- A standby diesel generator and 1 no car parking space
- All compounds will be bounded by a2.6 m high green palisade security fence / gates
- The existing entrance will be widened to 6 m in width
- 1.4 m high property fence / gates will surround the site
- All associated landscaping
- All other associated site development works such as surface water infrastructure and attenuation tanks to facilitate development. I. 2 no. Line cable interface masts of 27 m in height will be constructed adjacent to the onshore substation. This will require an existing 220 kv tower (31 m in height) and associated infrastructure to be decommissioned. J. A temporary construction compound adjacent to the onshore substation with a footprint of approximately 12,860m2 including welfare and storage areas. 3 no. Additional temporary construction compounds located along the onshore cable route varying in footprint from 3,000 m2 to 4,200 m2 and 8 no. Temporary hdd compounds (4 off road hdd's) varying in footprint from 100 m2 to 4,500 m2. K. All associated and ancillary above and below ground development including works comprising or relating to construction works, roadworks, excavation (including hdd) and vegetation clearance. Planning permission is sought for a period until the expiry of the maritime area consent for the project on 22 december 2067. Abp-319799-24
Key dates
Timeline
- Application received22 May 2024
- Decision due6 February 2025
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