Mast Turbines
Guaranteed to generate.
Or we take it down.
We plant turbines on hilltops and farmland edges across England. Every installation comes with a signed performance guarantee, full planning management, and a 25-year structural warranty. The risk is ours.
147
Turbines installed
91%
Planning approval rate
25 yr
Structural warranty
£0
Upfront if refused
Guaranteed output — or we take it down.
Every turbine we install comes with a signed generation guarantee. We specify the minimum annual kWh output before a single bolt is turned. If the turbine underperforms in year one, we remove it and refund your installation cost in full. No caveats. No small print.
- Minimum 35,000 kWh/year for a 15kW tower on qualifying land
- Independent metering from day one — your data, not ours
- Annual review against signed performance schedule
- Full removal and refund if year-one output falls short
Real Generation Data
12 months. 7 sites. Every one exceeded target.
Below: actual dashboard exports from six farms we commissioned in 2024. Average output was 41,200 kWh — 18% above the guaranteed minimum. The numbers are unedited.
41,200 kWh
Avg. annual output
7 / 7
Sites above guarantee
+18%
Above minimum (avg)
Generation data export — Fenwick Farm, North Yorkshire, Jan–Dec 2024
Planning Record
94 applications. 86 approved first time.
We publish our planning record openly. Below: the last 12 months of decisions, listed by local authority. Refused applications are included. You can see exactly where we've worked and how councils have responded.
94
Applications submitted
86
First-time approvals
91%
Success rate
Planning approval — Stonebridge Farm, North Yorkshire, March 2025
We handle planning. If it's refused, you pay nothing.
We prepare and submit your full planning application — site assessment, noise report, shadow-flicker study, heritage check. If the council refuses and appeal fails, you owe us nothing. We absorb the cost. Our approval rate across 94 rural applications is 91%.
- Full application prepared and submitted by our planning team
- Includes noise, shadow-flicker, ecology and heritage reports
- 91% first-time approval rate across 94 rural applications
- No fee if refused — we carry the planning risk entirely
Generating within 7 weeks of ground-break. Guaranteed.
We give you a signed installation schedule before the first machine arrives on your land. If we miss the completion date by more than five working days, we credit your first year of maintenance free of charge. Our average installation time is 6.2 weeks from ground-break to first generation.
Week 1–2
Site survey and ground assessment
Week 3–4
Foundation excavation and concrete pour
Week 5–6
Tower erection and electrical connection
Week 7
Commissioning, metering and handover
Installation Record
147 installations. Average 6.2 weeks. Zero late penalties paid.
We've never triggered our late-completion credit. Below: the signed schedule and completion certificate from Croft Hill Farm, Cumbria — installed in 41 working days, generating on day 42.
147
Installations completed
6.2
Average weeks to generate
0
Late penalties triggered
Tower erection — Croft Hill Farm, Cumbria, Week 5 of installation
Free site assessment · No obligation · Results within 48 hours
Warranty Documentation
Engineer-certified. Council-registered. Yours for 25 years.
Every turbine is certified by a chartered structural engineer and registered with the local authority on completion. The warranty document is lodged with your title deeds. Below: example certification pack from Oakmere Farm, Cheshire.
Tower structure
25 years — certified to BS EN 61400
Blades & hub
10 years manufacturer warranty
Gearbox & generator
5 years, extendable to 10
Annual inspection
Included, years 1–5
Structural inspection — Oakmere Farm, Cheshire, post-commissioning 2024
25 years, certified by a chartered engineer. Not just our word.
The tower structure carries a 25-year structural warranty, certified to BS EN 61400 and signed by a chartered civil engineer — not a sales document, a legal instrument lodged with your title deeds. Annual inspections are included in years one through five.
25-Year Asset
£312,000 average gross revenue over 25 years at current grid prices.
- Average 25-year gross revenue: £312,000 at current grid prices
- Landowner retains full ownership after installation payment
- Transferable with land sale — adds asset value to property
- Feed-in tariff or PPA options available at commissioning
Free site assessment · No obligation · Results within 48 hours
The five things we put in writing before a single machine arrives on your land
01
Minimum generation output
02
Planning approval or no fee
03
Installation within 7 weeks
04
25-year structural warranty
05
Annual inspection, years 1–5