Transformer Tenders and Contracts

Transformer notices cover the supply, installation, replacement, refurbishment and maintenance of power transformers, distribution transformers and pole mounted transformers, along with 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.

Stotles brings together transformer tenders and contracts from 100+ portals into one search, so you do not have to check each portal separately, and you can set alerts for new opportunities across the UK and Ireland.

If you want to search the government portals directly, Find a Tender carries higher-value contracts across the UK and Contracts Finder carries lower-value contracts in England. Public Contracts Scotland, Sell2Wales and eTendersNI cover Scotland, Wales and Northern Ireland, Ireland's eTenders covers Irish public bodies, and many councils, NHS bodies and housing associations publish on their own e-tendering portals such as ProContract. Network operators qualify contractors for substation work through utilities qualification systems, while hospitals and research sites tender single transformer replacements.

Transformer work must follow the Electricity at Work Regulations 1989, high voltage switching needs authorised persons, and new units must meet the BS EN 60076 series. Tenders usually set minimum insurance cover, check financial standing and ask for evidence of similar contracts at selection stage. Under the Procurement Act 2023, suppliers can be excluded for certain criminal convictions, insolvency or failure to pay tax.

Both appear. 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.

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.

Read net zero and energy strategies, infrastructure investment plans, framework renewals and expiry dates for existing contracts, which show transformer work coming due ahead of a notice. On Stotles you can track those signals and the buyers behind them, then follow a notice from pre-tender through to award.

Transformer notices carry 31170000 (Transformers), 45317200 (Electrical installation work of transformers) and 50532200 (Repair and maintenance services of transformers).