
East Sussex solar and batteries
Brighton, Lewes, Eastbourne, Hastings and the towns between. SW3 designs and fits solar and battery systems for East Sussex homes and businesses, and looks after them afterwards.
- 20+ years
- Family-run
- Which? Trusted Trader
Get your free quote
No-obligation. We'll call you back to talk it through, usually the same working day.
East Sussex towns we cover
From the seafront to the High Weald, we take on installs across the county. Give us your postcode and we will confirm dates and what is practical.
Brighton and the coast
Brighton, Hove, Peacehaven, Newhaven, Seaford.
Lewes and the South Downs edge
Lewes, Ringmer, Uckfield, Hailsham, Polegate.
Eastbourne, Hastings and beyond
Eastbourne, Bexhill, Hastings, Battle, Rye, Crowborough, Heathfield.

Not sure we reach your street? Send your address and we will confirm in one call.
What East Sussex homes need
Seaside terraces, Victorian villas and downland cottages all sit in East Sussex. A good design starts with the building in front of us.
- Victorian and Edwardian terraces. Brighton, Hove and Hastings streets have plenty. We plan panel layout around the roof shape and any shading.
- Sea air and wind. Coastal roofs get more exposure. We choose fixings to suit, and our maintenance visits keep panels clean and checked.
- Conservation areas. Parts of Lewes, Brighton and Hastings have extra rules. We check before we quote.
- Flats and shared buildings. Space is tight, so we are straight with you about what a roof can do and when a battery adds more value.

Tell us what your roof looks like and we will say what East Sussex homes like yours usually fit.
How your install runs
The same four steps in every area. Nothing hidden.
Free survey
We look at your roof, your meter and how you use power, and answer your questions.
Design and quote
A clear, no-obligation quote with the right panels, inverter and battery for you.
Install
A tidy install by our own engineers, then your apps set up and the system explained.
Looked after
Paperwork handled, and maintenance and health checks available when you want them.
Book your free survey and see your own numbers before you decide anything.
What customers say about SW3
Real reviews from homeowners we have installed for.
A big thank you to Chris, Paul, and the whole team at SW3 Green Energy Services Ltd! A couple of months ago, I had a 15-panel solar system installed, complete with microinverters and a Powerwall battery. I'm already seeing real savings, especially with being able to make the most of off-peak rates and getting good returns from my energy provider's export rates.
What really impressed me about SW3 Green Energy was their reliability and professionalism. They were on top of everything from the first quote to the final paperwork. My setup was a little complex, with specific requirements around the placement of the Gateway and Powerwall, plus integration with my Zappi EV charger. They handled it all seamlessly.
Even when my energy provider botched the smart meter installation, leaving my system down, Chris came back to sort things out and got it up and running again.
We were quoted for 14 panels and 2 batteries and an installation date was set for 2 months later. Everything was delivered on time and the team arrived when agreed. The work was carried out by one electrician who was excellent. It was a very neat installation and done in a day and a half. Any queries were dealt with promptly and to our satisfaction. We would recommend the company.
SW3 installed an excellent system to our home and provided exceptional service. They prioritise customer satisfaction. They strived to meet even our bespoke requests and their rates are fair. Kudos to Chris for the wonderful process from the initial discussion til post-installation, and for always keeping me updated. Kudos also to Matt who installed our system and who was really hardworking and knowledgeable. I would definitely recommend SW3 to everyone.
Want the same experience in East Sussex? Ask for your free quote today.
Why East Sussex homeowners choose SW3
20+ years
Over two decades of renewable energy experience behind every install.
Fully insured
All our work is insured and backed by guarantees.
Family-run
You deal with the same small team, names you will recognise by the end.
No obligation
Free quotes with no pressure and no hard sell.
Compare us with anyone. Our quote is free and you can sleep on it.
Solar in East Sussex: quick answers
Do you work in Brighton and Hove?
Yes. We cover Brighton, Hove and the coast through to Eastbourne and Hastings. Check your postcode above or call us.
My house is in a conservation area. Can I still go solar?
Often, but there can be extra rules. We check with you before we quote and explain what is likely.
Do I need a battery with solar?
Not always, but a battery stores daytime power for the evening. We will help you decide at the survey.
More questions? Call us and talk to a real person.
Other areas we cover
Looking for something else? See domestic solar, battery storage or commercial solar.
Ready to go solar in East Sussex?
Tell us a little about your home and we will come back with a free, no-obligation quote. Or ring, we are happy to talk it through.