Power plant · Hertsmere, England, United Kingdom
Hilfield Lane, Aldenham - Battery Energy Storage
Hilfield Lane, Aldenham - Battery Energy Storage is a permitted power plant in Hertsmere, England, United Kingdom, with 170 MW of capacity, operated by Penso Power.
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 | Hertsmere (coordinates), England | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | W/O Hilfield Lane, Aldenham, Watford, WD25 8DD | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Permitted (appeal granted) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 16 Jan 2026 (permit 25/0153/FUL, Town and Country Planning Act, issued by Hertsmere) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 6 Feb 2025 (reference 25/0153/FUL, planning authority Hertsmere) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 16 Jan 2026 (granted, reference 25/0153/FUL, planning authority Hertsmere) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 16 Jan 2026 (appeal granted, reference 25/0153/FUL, planning authority Hertsmere) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Penso Power (Penso Power (BW ESS)) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 170 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Battery (stand-alone storage) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.6563, -0.3359 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.
Request researchLatest events
Dated events about this power plant from official notices and registers, newest first. All recent changes.
- Permit granted (planning authority Hertsmere, reference 25/0153/FUL)
- Permit granted (appeal granted, planning authority Hertsmere, reference 25/0153/FUL)
- Permit applied for (planning authority Hertsmere, reference 25/0153/FUL)
How it compares
Hilfield Lane, Aldenham - Battery Energy Storage is the 215th-largest of 2,174 power plants planned, permitted or under construction in England and the 338th-largest of 3,222 in the United Kingdom by capacity; its 170 MW is <0.1% of the 300,461 MW of power plants planned, permitted or under construction we hold for the United Kingdom. It is not built yet, so it is ranked among the power plants planned, permitted or under construction in our data, apart from the ones running today. Ranks and totals cover the ones that report their capacity.
| Within | Rank | Total | Share |
|---|---|---|---|
| England | 215th of 2,174 | 185,888 MW | <0.1% |
| United Kingdom | 338th of 3,222 | 300,461 MW | <0.1% |
| All power plants planned, permitted or under construction in our data | 946th of 6,455 | 664,040 MW | <0.1% |
Nearby
Within 50 km of this power plant: 147 data centers (1 operating, 88 MW), 129 substations, 47 grid connections (26 operating, 288 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 |
|---|---|---|---|---|
| The Chess Building | Data center | — | — | 6.5 km |
| Pure DC London Brent Cross | Data center | — | — | 12 km |
| LDeX 1 | Data center | — | — | 12 km |
| Harefield Primary | Substation | — | — | 12 km |
| Harefield Solar grid connection | Grid connection | 30 MW | Planned | 12 km |
| Greenford Primary | Substation | — | — | 13 km |
| Perivale Primary | Substation | — | — | 14 km |
| Land at Pinstone Farm grid connection | Grid connection | 60 MW | Planned | 16 km |
| Gerrards Cross Battery grid connection | Grid connection | 20 MW | Operating | 16 km |
Operator and place
More from Penso Power
- Hams Hall - Battery Energy Storage System400 MW · under construction
- Layhams Road - Battery Storage Facility250 MW · permitted
- Little Beanit Farm, Balsall Common - Battery Storage200 MW · under construction
- Cowley Substation, Blackberry Lane - Battery Storage Energy System200 MW · permitted
- East Road, Marchwood - Battery Energy Storage200 MW · permitted
- National Grid Substation - Battery Energy Storage System100 MW · permitted
- Minchens Lane Battery Storage Facility100 MW
- Stonehill Energy Storage50 MW · permitted
Other power plants in England
- Walpole Flexible Generation Project2,000 MW
- Outer Dowsing Offshore Wind Farm1,500 MW
- Hornsea 2 - Optimus and Breesea1,320 MW
- Hornsea 1 - Heron & Njord1,218 MW
- Atlantic Array One - Bristol Channel Zone1,200 MW
- Five Estuaries - Wind Farm1,080 MW
- Rugeley Power Plant Conversion1,000 MW
- Teesworks Battery Storage Project1,000 MW
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.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.