Substation · England, United Kingdom
Frogmore Primary 11kV Substation
Frogmore Primary 11kV Substation is an 11 kV primary substation in England, United Kingdom, with 8.1 MVA of demand headroom and 22.9 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 | 8.1 MVA | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Generation headroom | 22.9 MVA | UK Power Networks open data portal · CC BY 4.0 · checked 25 Oct 2026 |
| Firm capacity | 24 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 | 51.7425, -0.4730 | 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: 395 power plants (138 operating, 2,829 MW), 348 grid connections (231 operating, 2,155 MW), 148 data centers (1 operating, 88 MW), 1 transmission line 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 |
|---|---|---|---|---|
| C2 Hall Road grid connection | Grid connection | 3 MW | Operating | 3.1 km |
| Gyron Maylands Datacentre grid connection | Grid connection | 8 MW | Operating | 3.2 km |
| NTT Hemel Hempstead 2 | Data center | — | — | 3.2 km |
| NTT Hemel Hempstead 3 | Data center | — | — | 3.3 km |
| Spring Way grid connection | Grid connection | 30 MW | Operating | 3.4 km |
| NTT Hemel Hempstead 4 | Data center | — | — | 3.4 km |
| Little Heath Lane - Solar PV Array | Power plant | 25 MW | Planned | 3.7 km |
| G Park Maxted Road - Solar Panels | Power plant | 1.25 MW | Cancelled | 3.9 km |
| Amazon Boundary Way | Power plant | 2 MW | Cancelled | 4.0 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
5 sites of land near Frogmore 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.
- 4.32 ha brownfield site at National Grid land 339-353 London Road Hemel Hempstead, Dacorum0.53 km · score 30
- 2.93 ha brownfield site at Frogmore Road Hemel Hempstead, Dacorum0.65 km · score 28
- 1 ha brownfield site at Ebberns Road Hemel Hempstead, Dacorum0.69 km · score 28
- 3 ha brownfield site at Paradise/Wood Lane Hemel Hempstead, Dacorum0.78 km · score 26
- 4.32 ha brownfield site at Hemel Hempstead Station Gateway Station Road, Dacorum1.09 km · score 22
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.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- UK Power Networks. UK Power Networks open data portal, CC BY 4.0.