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
- Awarded contract
prj_3727 - Power
- Awarded contract
Residences HV Transformers Phase 2
- Awarded contract
Broomloan Traction Power Transformer Replacement
- Closed tenderPublished 2 April 2025
An Grianán Theatre Auditorium Seating Refurbishment
- Expired contract
Transformer Replacement at Ferneham Hall Sub Station
- Awarded contract
B923 (2019) Plant Painting
- Awarded contract
Linkspans Maintenance Services 2025-2028
- Expired contract
Lincoln HV Transformer replacement
- Awarded contract
Design and Build Contractors (Minor Works) Framework Agreement
- Closed tenderPublished 9 September 2024
Linkspans Maintenance Services 2025-2028
- Closed tenderPublished 19 August 2024
Cross-Connect Transformer Design and Supply
- Closed tenderPublished 19 August 2024
Cross-Connect Transformer Design and Supply
- Stale Pre-tenderPublished 22 July 2024
Facilities Management - M&E Services
- Closed tenderPublished 22 July 2024
Facilities Management - M&E Services
- Stale Pre-tenderPublished 22 July 2024
Facilities Management - M&E Services
- Closed tenderPublished 18 June 2024
Design and Build Contractor to provide Heat Energy Network at De Montfort University
- Closed tenderPublished 10 May 2024
HS2 - Westgate LV Switchgear, Temporary TX and Cast-in Busbar (Sub-subcontract Package)
- Stale Pre-tenderPublished 3 April 2024
STEP support for the scoping of HV Power and Generator Transformers suitable for future Fusion Power Plants
- Closed tenderPublished 3 April 2024
STEP support for the scoping of HV Power and Generator Transformers suitable for future Fusion Power Plants
- Expired contract
Cooling Compound Upgrade - ORE/24/042
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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