T322 NIEN Transmission Substation Turnkey (Amended)
Northern Ireland Electricity Networks LimitedEstimated Value
£128,400,000 – £234,000,000
Deadline
16 May 2025
Published
22 June 2026
Type
Not specified
Full Description
It is proposed to establish a Multi-Party Framework which will consist of two lots,
- Lot 1 will consist of larger scale substations with a range between 110 – 400kV and an estimated cost range between £25 to £100m.
- Lot 2 will consist of medium scale substations with a range between 33 – 275kV and an estimated cost range between £1 - £25m
- The scope of works to be procured will include predominantly substation works including turnkey electrical, mechanical, civils and enabling works, with the inclusion of local overhead lines and cables within the curtilage of the site.
- NIEN wish to retain the flexibility for each lot to utilise both Design and Build (D&B) and Engineering Procurement and Construction (EPC) models.
- The default approach will be that equipment supply (transformers and switchgear etc.) will be in the scope of projects. Free issue of equipment will be limited to those projects for which NIEN have equipment ordered.
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Award Details
Adman Civil Projects Ltd
£234,000,000
H&MV Engineering Services Limited
£234,000,000
Siemens Energy Ltd
£234,000,000
Aureos Energy Ltd
£128,400,000
Murphy International Limited
£128,400,000
Likely incumbents
Suppliers who won similar work from this buyer in the last 5 years.
- 1
Mosdorfer CCL Systems Ltd
£2m
total awarded
- 2
Accenture (UK) Limited
2 contracts wonlatest 21 Jul 2026ends 7 Aug 2029£10m
total awarded
- 3
CGI IT UK Limited
2 contracts wonlatest 21 Jul 2026ends 7 Aug 2029£10m
total awarded
- 4
ABB Limited
2 contracts wonlatest 27 Mar 2026ends 1 Feb 2028£4m
total awarded
- 5
Turner & Townsend
2 contracts wonlatest 17 Nov 2025£13m
total awarded
Mosdorfer CCL Systems Ltd is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.
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Buyer Profile
Northern Ireland Electricity Networks LimitedKey Dates
Published
22 June 2026
Submission deadline
16 May 2025
Notice type
award
Source
find a tender
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