Case study · Crantock Village Hall, Cornwall
A village hall that earns money while it's locked.
Solar, battery and two public EV chargers, run end to end by Manta Power. Here's what the last 12 months looked like.
£1,614
profit to the hall from charging
306
charging sessions
8,261
kWh delivered to drivers
0 hrs
volunteer time needed
The year in numbers
Where the money goes
- Charging income to the hall
- £3,844
- Electricity used (8,261 kWh at 27p)
- −£2,230
- Profit to the hall
- £1,614
A 42% margin on the electricity sold.
Up on year one
+91%
charging sessions
+79%
energy delivered
+73%
annual profit
Compared with the yearly average from Feb 2024 to Oct 2025.
Charging income to the hall, month by month
£ before electricity costs
Summer brings two thirds of the year's sessions. August alone earned £760. October 2025 runs from the 13th and October 2026 to the 8th.
27 kWh
average top-up, about 95 miles of driving
4–7pm
busiest time, with a third of all sessions
28,900
miles of electric driving, about 4.5 tonnes of CO₂ saved
Installed May 2023
How it all fits together
8.46 kW
solar array on the roof
10.5 kWh
battery storage
10 kW
Solis 3-phase hybrid inverter
2 × 22 kW
Autel public EV chargers
What happens day to day
- 1Solar panels power the hall and top up the battery during the day.
- 2Drivers plug in and pay by app or card. No staff, no cash, no keys.
- 3Manta Power monitors the chargers, handles driver support and fixes faults remotely.
- 4The income lands in the hall's account, with a monthly report.
Pricing that works for the village
| Visitors | 45p / kWh |
|---|---|
| Regular users | 40p / kWh |
| Local residents | 35p / kWh |
| Hall's electricity cost | 27p, fixed to Dec 2027 |
An idle fee stops cars sitting in the bays once they're full, which also adds a little extra income.
£28,662
total install, part grant funded
~£2,685 a year
charging profit plus an estimated £1,071 in solar savings
~11 years
simple payback, down from 14. Panels last 25+ years
Could your hall be next?
Income that doesn't need volunteers
The chargers earn day and night, even when the hall is shut. Trustees don't lift a finger.
Lower bills on top
Solar and a battery cut what the hall pays for its own power.
Something the village uses
Residents get a cheaper local rate, and visitors have a reason to stop in the village.
Proven, not a punt
Crantock is one of three village halls where we run the EV charging, and we'd like to add more.
How we get you there
1. Free site visit
We look at your car park, roof and bills.
2. Grants sorted
We find the funding and help with the paperwork.
3. Installed
Certified local installers, minimal disruption.
4. Fully managed
Payments, support and reports handled.
The EV charging grant closes in March 2027
Talk to Matt at Manta Power
Free site visit for village halls and community buildings in Cornwall and Devon.
Download the PDFBased on real Crantock Village Hall data, 13 Oct 2025 to 8 Oct 2026. Results at other sites will depend on location, use and energy tariff.