Substation · England, United Kingdom
Herriard Primary
Herriard Primary is a substation in England, United Kingdom, connected by Southern Electric Power Distribution plc.
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 | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Grid operator | Southern Electric Power Distribution plc | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Demand headroom | 2.36 MVA | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Generation headroom | 0 MW | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Transformers | 1 x 7.5MVA + 1 x 10MVA | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Level | Primary | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Fed from | Fleet-Bramley GSP | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Fed from | Alton BSP | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (offtake) | None (green on the heat map) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (feed-in) | Full (red on the heat map, limited by upstream thermal capacity) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Voltage | 33 kV (levels 33, 11 kV) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Coordinates | 51.2001, -1.0457 | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
Know more about this substation, or want an introduction to its grid operator? Ask us.
Nearby
Within 50 km of this substation: 278 power plants (105 operating, 947 MW), 237 grid connections (129 operating, 1,306 MW), 67 data centers and 1 transmission line, measured from the coordinates in the facts above. The table shows the nearest 9, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Herriard AD Plant grid connection | Grid connection | 1.9 MW | Operating | 0.7 km |
| Solar 4.75 MW grid connection at Herriard | Grid connection | 4.75 MW | Operating | 2.1 km |
| Frying Down Copse Solar Farm | Power plant | 5 MW | Operating | 2.2 km |
| Green Waste Composting Facility (Waste AD) | Power plant | 1.2 MW | Operating | 2.2 km |
| Production Plant grid connection | Grid connection | 12.4 MW | Operating | 2.6 km |
| Upper Farm solar park | Power plant | 12 MW | Operating | 4.7 km |
| Data center, England (OSM way 1164817477) | Data center | — | — | 19 km |
| Ark Data Centres data center, England | Data center | — | — | 20 km |
| Datum Farnborough Data Centre | Data center | — | — | 20 km |
Grid operator and place
Grid connections attached to this substation
More from Southern Electric Power Distribution plc
- Amersham GSPsubstation
- Loudwater BSPsubstation
- Bowerdean Primarysubstation
- Flackwell Heath Primarysubstation
- Well End Primarysubstation
- Wycombe Marsh Primarysubstation
- Axminster GSPsubstation
- Yeovil BSPsubstation
Other substations in England
Data on this page
- DESNZ Renewable Energy Planning Database (REPD). DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.