Our Work
Real installations across East Anglia. Every project is designed, installed, and commissioned by our MCS-certified team.
From residential solar panel systems to large-scale commercial installations, every project is designed and installed by our MCS-certified team. We work across Cambridgeshire, Norfolk, and Suffolk, delivering heat pumps, battery storage, EV chargers, and whole-house retrofits. Browse our completed projects below, or read detailed case studies with full system specs and customer feedback.
6.3kW Solar + 9.5kWh Battery
A 15-panel system with battery storage on a south-facing detached property. The homeowner saves over £1,400 per year on electricity and earns additional income through Octopus Flux exports.
"The system has exceeded our expectations. We barely pay anything for electricity now, even in winter with the smart tariff."
— David & Sarah M.
50kW Commercial Solar Array
A large commercial installation on a grain store roof near Newmarket. The system generates approximately 47,000 kWh per year, covering the majority of the farm's electricity demand with a payback period of just 4 years.
"Green Hat understood the farming calendar and worked around our busiest periods. The savings have been transformational for our operating costs."
— James T., Farm Manager
10kW Heat Pump + Underfloor Heating
A Samsung air source heat pump replacing an ageing oil boiler in a 4-bedroom Victorian farmhouse. Included new underfloor heating on the ground floor and upgraded radiators upstairs. The £7,500 BUS grant significantly reduced the upfront cost.
"Our home has never been more comfortable. The heat pump keeps every room at a consistent temperature, and our heating bills dropped by over 40%."
— Rachel & Tom K.
4.2kW Solar + Zappi EV Charger
Solar panels paired with a Zappi v2 EV charger. The smart charger automatically diverts surplus solar energy to charge the family Tesla Model 3, reducing public charging costs to near zero during summer.
"We charge the car almost entirely from solar between April and September. The Zappi app makes it really easy to manage."
— Mark P.
5.5kW Solar + 5.2kWh Battery
Solar and battery retrofit on a semi-detached home. The battery stores surplus daytime generation for evening use, achieving 78% self-consumption. Combined with Octopus Go tariff for overnight top-ups.
"Adding the battery to our existing solar was the best decision. Our electricity bill went from £120/month to under £30."
— Linda W.
8kW Heat Pump System
A Vaillant aroTHERM plus heat pump replacing a gas boiler in a well-insulated 3-bedroom detached bungalow. The single-storey layout was ideal for underfloor heating integration throughout.
"The installation team were professional from start to finish. Our gas bill was £140/month and now our heating costs roughly £80/month on electricity."
— Peter & Jean H.
External Wall Insulation
Full external wall insulation on a solid-walled Victorian terrace. The 100mm EWI system improved the EPC from E (42) to C (71), reducing heat loss through the walls by approximately 65%. The property is now landlord-compliant well ahead of the 2030 deadline.
"The house feels completely different. No more cold walls and draughts. Our tenants are delighted with the lower heating bills."
— Stuart D., Landlord
Before and After
Every installation is completed to MCS standards. See the transformation across these properties.
Detached Home, Ely
6.3kW solar panel system with 9.5kWh battery storage. Annual savings of £1,420.
Explore Our Services
Every project starts with understanding your property and energy goals. Explore the services behind these installations.
Want Results Like These?
Every project starts with a free, no-obligation site survey. Let us design the perfect system for your property.