Substation · England, United Kingdom
Hillingdon Primary
Hillingdon 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 |
| Congestion (offtake) | None (rag: Green) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Congestion (feed-in) | Full (rag: Red, constraint: Substation Fault Level) | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Demand headroom | 8.98 MVA | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Generation headroom | 44.2 MW | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Transformers | 2 x 20 / 40MVA | 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 |
| Voltage | 66/11 kV | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
| Coordinates | 51.5341, -0.4520 | SSEN Distribution data portal · CC BY 4.0 · checked 24 Oct 2026 |
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Nearby
Within 50 km of this substation: 96 grid connections (51 operating, 600 MW), measured from the coordinates in the facts above. The table shows the nearest 3.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| North Hyde Sub STN grid connection | Grid connection | 9.5 MW | Operating | 4.0 km |
| Oil 4.703 MW grid connection at Sutton Lane | Grid connection | 4.7 MW | Operating | 5.2 km |
| Heathrow Flight Path grid connection | Grid connection | 1.15 MW | Planned | 5.4 km |
Grid operator and place
More from Southern Electric Power Distribution plc
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Other substations in England
Data on this page
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.