Renewable Energy Installers for East Anglia
Solar panels, battery storage, heat pumps, and EV chargers. Expert installation with 0% VAT and government grants available.
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Complete Renewable Energy Solutions
From solar panels and battery storage to heat pumps and EV chargers, we provide the full range of renewable energy services for homes, farms, and businesses across East Anglia.
Calculate Your Savings
Use our free calculators to estimate how much you could save with solar panels or a heat pump. Get instant results, then request a personalised quote.
Solar Savings Calculator
Estimate your solar panel savings in under 60 seconds
How much do you currently spend on electricity each month?
That is roughly 3,918 kWh per year. Solar could cover a significant portion of this.
Heat Pump Savings Calculator
See how much you could save by switching to a heat pump
Not Sure Where to Start?
Answer 6 quick questions about your property, heating system, and priorities. We will recommend the best renewable energy solution for your specific situation -- with estimated savings.
Which Renewable Is Right for You?
Answer 6 quick questions for a personalised recommendation
Choose the option that matters most to you right now.
Government Incentives at Peak Value
Multiple government schemes are running simultaneously, making 2026 one of the best years ever to invest in renewable energy for your home or business.
From a 4kW system in East Anglia
Trusted Local Renewable Energy Experts
MCS Certified
Full MCS certification ensures you qualify for all government incentives and our work meets the highest industry standards.
Truly Local
Based in Isleham at the heart of East Anglia. We know the local planning rules, weather patterns, and communities we serve.
Construction Heritage
15+ years of construction experience means we understand buildings. Our installations are structurally sound and built to last.
Complete Service
From initial survey through installation to aftercare. One company for solar, battery, heat pumps, EV chargers, insulation, and more.
What Our Customers Say
4.9 out of 5 based on customer reviews
Green Hat installed 14 panels and a GivEnergy battery for us. The team was professional from survey to commissioning. Our electricity bills have dropped from £140 to £30 per month, and we're earning from the Smart Export Guarantee. Genuinely transformative.
James & Sarah Mitchell
Ely, Cambridgeshire
Solar Panels + Battery Storage
Had a 5kW system fitted on our period property near the high street. Green Hat handled the planning considerations with real expertise. System has been generating brilliantly — even through the winter months we're seeing meaningful savings.
Robert Thompson
Newmarket, Suffolk
Solar Panels (Residential)
We replaced our ageing oil boiler with a Daikin heat pump. Green Hat managed the entire BUS grant application and the installation was completed in three days. Our home is warmer than it has ever been, and we've eliminated our oil delivery costs completely.
Helen & David Parker
Soham, Cambridgeshire
Air Source Heat Pump
Green Hat fitted a 50kW system on our grain store roof. The team understood agricultural buildings and worked around our harvest schedule. The system is generating significant income and has been running flawlessly since installation.
Andrew Fenwick
Mildenhall, Suffolk
Solar Panels (Agricultural)
We wanted the full package — solar panels, battery storage, and an EV charger. Green Hat designed a system that powers our home and charges our EV almost entirely from solar. The monitoring app shows we're 85% self-sufficient in summer.
Catherine Lloyd
Cambridge
Solar + Battery + EV Charger
Whole-house renovation including heat pump and underfloor heating throughout. Green Hat coordinated everything expertly. The house is incredibly comfortable — even, consistent warmth in every room. The £7,500 BUS grant made it very affordable.
Martin & Jane Hughes
Bury St Edmunds, Suffolk
Heat Pump + Underfloor Heating
Helpful Guides and Cost Information
Explore our comprehensive guides to understand costs, grants, and what to expect from your renewable energy installation.
Covering Cambridgeshire, Norfolk and Suffolk
East Anglia is one of the UK's best regions for solar energy, with above-average sunshine hours and nearly 1,000 MW of installed capacity across three counties. From our base in Isleham, we serve over 40 towns and villages.
Hover over a county on the map to see key statistics.
We serve all of Cambridgeshire, Norfolk, and Suffolk.
Latest Articles and Advice
Practical guidance on solar panels, heat pumps, grants, and making the most of renewable energy in East Anglia.
Frequently Asked Questions
Ready to Switch to Clean Energy?
Get your free, no-obligation survey and personalised quote. Our MCS-certified team is ready to help you save money and reduce your carbon footprint.