Power plant · Dacorum, England, United Kingdom
Folly Farm
Folly Farm is a power plant in Dacorum, England, United Kingdom, with 13.1 MW of capacity, operated by Hive Energy.
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 | Dacorum (coordinates), England | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Folly Farm, Potash Lane, Long Marston, Tring, Hertfordshire, HP23 4QY | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Operating (operational) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Start year | 2015 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 11 Nov 2014 (permit 4/02099/14/MFA, Town and Country Planning Act, issued by Dacorum) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 13 Aug 2014 (reference 4/02099/14/MFA, planning authority Dacorum) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 11 Nov 2014 (granted, reference 4/02099/14/MFA, planning authority Dacorum) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Hive Energy | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 13.1 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Solar Photovoltaics | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Area | 24.8 ha (solar site area) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.8399, -0.7364 | 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.
- Commissioned
- Permit granted (planning authority Dacorum, reference 4/02099/14/MFA)
- Permit applied for (planning authority Dacorum, reference 4/02099/14/MFA)
How it compares
Folly Farm is the 879th-largest of 3,430 power plants in England and the 1,556th-largest of 5,050 in the United Kingdom by capacity; its 13.1 MW is <0.1% of the 115,622 MW we hold for the United Kingdom. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| England | 879th of 3,430 | 71,965 MW | <0.1% |
| United Kingdom | 1,556th of 5,050 | 115,622 MW | <0.1% |
| All power plants in our data | 5,797th of 12,032 | 1,190,447 MW | <0.1% |
Timeline
Dated facts about this power plant from its sources, oldest first.
- Started operating
Nearby
Within 50 km of this power plant: 164 substations, 111 grid connections (52 operating, 544 MW) and 103 data centers (1 operating, 88 MW), measured from the coordinates in the facts above. The table shows the nearest 9, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Data center, England (OSM way 1254986167) | Data center | — | — | 7.8 km |
| East Claydon GSP | Substation | — | — | 15 km |
| Data center, Dunstable (OSM way 526426719) | Data center | — | — | 17 km |
| Data center, England (OSM way 1460602301) | Data center | — | Under construction | 19 km |
| Amersham GSP | Substation | — | — | 20 km |
| Generation 99 MW grid connection at Amersham Main | Grid connection | 99 MW | Planned | 22 km |
| Cokes Lane Primary | Substation | — | — | 22 km |
| Lewknor Solar grid connection | Grid connection | 49.9 MW | Planned | 23 km |
| Rycote Farm grid connection | Grid connection | 47.5 MW | Planned | 24 km |
Operator and place
More from Hive Energy
- Troughton Farm30 MW
- Hacheston Solar farm25 MW
- West Kingdown20 MW
- Orrell Hill20 MW
- Castle Eaton Farm17.8 MW
- Gerard Hall Solar Farm17 MW
- Valley Farm16 MW
- Pitworthy Farm Solar Park15.6 MW
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.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- © 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.