Phase Shifting Transformers

SSE
South East
Selective procedure

This framework covers gas network capital expenditure projects across five UK regions. Work includes large-scale pipeline diversions (over 24" diameter and 500m length) involving tunneling and HDD, alongside smaller-scale diversions and upgrades to above-ground installations like pre-heat systems. The scope encompasses primary and secondary construction, decommissioning, and the removal of redundant assets to support network maintenance and third-party infrastructure development.

Open the official notice

Awarded value: Not published; No value in the notice
Published: 21 February 2025
Awarded: 7 April 2026
Contract length: Not stated

What the contract covers

Framework

Provision of design, planning, and construction services for gas network infrastructure, including pipeline diversions, asset modifications, and above-ground installation works.

Manufacture, install and cold commission 2 x Phase Shifting Transformers
Whale Tankers
Vacuum Excavator
JCBs
Pipeline diversions typically larger than 24" in diameter and longer than 500m, including tunneling/HDD
Significant above-ground installation works including new build, rebuild and capacity upgrades
Design, planning and construction services supporting Cadent's capital expenditure programmes
Diversion or modification of existing assets
Primary and secondary construction, decommissioning, and removal or disposal of redundant assets and associated infrastructure
Design optimisation and integration of new technologies and equipment

Lot	Estimated value	SMEs
Lot 1	Not stated	Not stated
Lot 2 - East	Not stated	Not stated
Lot 3 - Complex	Not stated	Not stated

Terms and requirements

Contract type: Framework
Procedure: Selective procedure
Certifications asked for: None stated
Lots: 3
Suitable for SMEs: Not stated
Category: Works
CPV codes: 45500000, 45000000, 45232220, 31170000

Services in this contract

Electricity network works and connectionsMain service£125k typicalManufacture, install and cold commission two phase shifting transformers at Blackhillock
Gas network works£118k typicalCadent capex programme delivery framework lots: gas pipeline diversions and construction

Lifecycle

Published
21 February 2025
Contract awarded
7 April 2026
Contract starts
Contract endsEnd date not published

The buyer

SSE

Type: Locked
Contracts, 24 months: Locked
Recorded value: Locked
Typical contract: Locked
Gas mains replacement contracts, 24 months: Locked

Buys most

Contact details

Name: Locked
Email: Locked
Phone: Locked
Website: Locked
Address: Locked

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Cite this contract

Link: https://bidskim.com/tender/913778/phase-shifting-transformers
Buyer reference: ocds-h6vhtk-04e63a
Last checked: 5 November 2026

SSE. Phase Shifting Transformers. Contract award, 21 February 2025. BidSkim, https://bidskim.com/tender/913778/phase-shifting-transformers (accessed 5 November 2026).