Transformer Tenders
See open transformer tenders and awarded contracts for the UK public sector.
Transformer procurement covers the plant that steps voltage up and down across the electricity network: power and distribution transformers, pole mounted transformers for local supply, and the substation and switchgear work tied to installing, replacing, or refurbishing them.
Stotles has tracked 168 transformer notices to date, including 72 already awarded. Most of the work sits with electricity network operators, NHS estates teams and local authorities replacing ageing plant at hospitals, depots and substations.
163 results
- Closed tenderPublished 8 September 2022
Broomloan Traction Power Transformer Replacement
- Awarded contract
Temporary Electrics, Water and Site Services (WP39.1) - Old Oak Common (S4) Station - HS2
- Closed tenderPublished 6 July 2022
4316656 - Modular Wards at Antrim Hospital
- Closed tenderPublished 6 July 2022
4316656 - Modular Wards at Antrim Hospital
- Closed tenderPublished 5 July 2022
GB-London: National Maritime Museum HV transformer upgrade Consultancy.71321000
- Stale Pre-tenderPublished 20 June 2022
High Voltage Control, Operation, Maintenance and Emergency Response (COMER) for Environment Agency North West
- Awarded contract
ATU Galway City Transformer Replacement 2022
- Closed tenderPublished 13 May 2022
MTS 21-11 SUBSTATION#3 TRANSFORMER REPLACEMENT - PORT OF RAMSGATE
- Closed tenderPublished 11 April 2022
ATU Galway City Transformer Replacement 2022
- Expired contract
FM22087 - 3.3kV Transformer Refurbishment
- Closed tenderPublished 14 March 2022
NGET Call For Innovation - Innovative Substation Auxiliary Load Solutions
- Closed tenderPublished 3 March 2022
Monettia Electrical Refurbishment
- Closed tenderPublished 24 January 2022
Inspection, Testing, & Maintenance of HV Systems and associated Remedial Repair
- Expired contract
Hunterston A Site Transformer Replacement
- Expired contract
Protocol 7B - Transformer Replacement at Elvaston Castle
- Closed tenderPublished 30 November 2021
YWS Customer Relationship Management (Software Tool and Systems Integrator)
- Closed tenderPublished 16 November 2021
0833 Horton D Transformer Replacement
- Awarded contract
Repair & Maintain - On and Off Site Transformer Refurbishment (Primary/Grid)
- Closed tenderPublished 21 October 2021
0833 Horton D Transformer Replacement
- Awarded contract
FW Supply and Installation of Large Power Transformers Multi Site 0927
Frequently asked questions
Frequently asked questions about power transformer, distribution transformer, electrical transformer, transformer replacement, transformer maintenance, HV transformer, pole mounted transformer, substation transformer, transformer refurbishment in the UK public sector.
What counts as a transformer tender or contract?
Transformer notices cover the supply, installation, replacement, refurbishment and maintenance of power transformers, distribution transformers and pole mounted transformers, plus the substation and switchgear work that goes with them. Contracts range from a single unit swap at a hospital site to multi-lot framework agreements covering substation construction across a network operator's estate.
How do I find transformer tenders in the UK?
Search live tenders on the national portals, or move earlier. On Stotles you can track buyers' procurement plans and see which contracts are approaching renewal before a tender opens, then build a bid from what is already on record.
What CPV codes cover transformer tenders?
Transformer work maps to CPV codes 31170000 (Transformers), 45317200 (Electrical installation work of transformers), and 50532200 (Repair and maintenance services of transformers), alongside broader substation construction and electrical installation codes.
Are transformer contracts let as frameworks or standalone jobs?
Both. Some routes to market are framework agreements that cover substation and transformer work across a network operator's whole estate, with individual projects called off under them as needed. Others are standalone contracts tied to a single site, such as replacing a failed transformer at one hospital or depot.
Who buys transformer equipment and services in the UK public sector?
Electricity network operators and grid infrastructure bodies account for a large share of transformer notices, alongside NHS trusts, universities and local authorities replacing or maintaining transformers on their own sites, from hospital substations to street lighting and highways electrical work.
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