Developer / ESCO · Operator
E.ON (heat networks)
Energy company that builds and runs heat networks, including Citigen in the City of London and the Don Valley network in Sheffield.
Based in NottinghamWebsiteUnconfirmed by the firm
Our independent summary
E.ON's UK heat network business develops and operates district heating and cooling. Its best-known schemes are Citigen, which serves buildings in the City of London, and the Don Valley network in Sheffield fed by the Blackburn Meadows biomass plant, which it has announced plans to expand. E.ON has said it operates more than 70 UK networks and has money earmarked for future heat zones. We have not found a zone developer appointment so far. Customers of an E.ON network can use the Energy Ombudsman if a complaint is not resolved.
Written by us from public information, not supplied by the firm. Last reviewed 8 November 2026.
At a glance
- Regions
- London, Yorkshire & the Humber
- Clients
- Offices, Developers, Hotels & leisure
- Project size
- Estate or campus, City-scale network
- Heat sources
- Biomass, Gas CHP
- Networks
- 70+ UK networks (company figure)
- Ofgem registration
- Not yet confirmed
- Heat Trust
- Not yet confirmed
- HNTAS
- Not yet confirmed
- Local work in
- Sheffield
Public projects
Citigen · City of London
Don Valley heat network expansion · Sheffield
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