Substation · England, United Kingdom
Writtle St Primary 11kV Substation
Writtle St Primary 11kV Substation is an 11 kV primary substation in England, United Kingdom, with 7.3 MVA of demand headroom and 22.1 MVA of generation headroom, operated by Eastern Power Networks plc (UK Power Networks, East England licence area).
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | England | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Grid operator | Eastern Power Networks plc (UK Power Networks, East England licence area) | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Demand headroom | 7.3 MVA | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Generation headroom | 22.1 MVA | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Firm capacity | 23.9 MVA | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Level | Primary substation | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Voltage | 11 kV | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Coordinates | 51.7291, 0.4698 | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
Research on this substation and the land around it.Its headroom, connection queue and congestion, who owns the land around it, and an introduction to those owners.
Nearby
Within 50 km of this substation: 384 power plants (157 operating, 7,878 MW), 361 grid connections (246 operating, 2,976 MW), 51 data centers (1 operating, 88 MW), 2 transmission lines and 1 AI supercomputer, measured from the coordinates in the facts above. The table shows the nearest 9, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Cards Road grid connection | Grid connection | 8.55 MW | Planned | 3.7 km |
| Roxwell Landfill Generation grid connection | Grid connection | 3.5 MW | Operating | 5.5 km |
| Temple Farm grid connection | Grid connection | 1.7 MW | Operating | 5.5 km |
| Roxwell Landfill Scheme | Power plant | 1.3 MW | Operating | 5.7 km |
| St Cleres Hall Pit Solar Array | Power plant | 25 MW | Cancelled | 5.9 km |
| Hill Farm Solar Park & Battery Storage (Hanningfield Green) | Power plant | 36.7 MW | Cancelled | 7.5 km |
| Imperium 315 | Data center | — | — | 16 km |
| CityFibre Cabinets | Data center | — | — | 21 km |
| NVIDIA Cambridge-1 | AI supercomputer | 202 H100e | Operating | 24 km |
Grid operator and place
More from Eastern Power Networks plc
- Canvey Primary 11kVsubstation
- Thorley Primary 11kVsubstation
- Peterborough South Grid 11kVsubstation
- Westbury Primary 11kVsubstation
- Laxfield Primary 11kVsubstation
- Fulbourn Grid 33kVsubstation
- Earlham Grid 33kVsubstation
- Hunstanton Primary 11kVsubstation
Candidate sites around this substation
6 sites of land near Writtle St Primary 11kV have it as nearest substation. Each site page gives its area, its distance to the substation and its site score; owners are on request.
- 3.55 ha brownfield site at Meadows Shopping Centre and Meadows Surface Car Park, Chelmsford0.54 km · score 29
- 1.15 ha brownfield site at Baddow Road Car Park and Land to the East, Chelmsford0.62 km · score 28
- 3.29 ha brownfield site at Former Gas Works Wharf Road Chelmsford0.7 km · score 27
- 1.93 ha brownfield site at Civic Centre land Fairfield Road, Chelmsford0.75 km · score 26
- 1.13 ha brownfield site at Riverside Ice and Leisure Land Victoria Road Chelmsford0.89 km · score 24
- 2.25 ha brownfield site at Lockside Navigation Road Chelmsford0.96 km · score 23
Other substations in England
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Epoch AI. Epoch AI supercomputers, CC BY 4.0.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- UK Power Networks. UK Power Networks open data portal, CC BY 4.0.