“Very happy with the solar panel and battery system they supplied and installed.” — Dragos Cazacu “Very happy with my Sigen system and solar panels. I would highly recommend Diamond Green.” — Dave Evans “Outstanding job installing our home solar panel system — excellent from start to finish.” — Alain T “Diamond Green Energy is the best solar installer in the UK, full stop.” — Syed “Solar panels installed with service that was genuinely above and beyond.” — Alan King “They installed a new panel and battery system. Great company — would recommend.” — Kevan D “The engineer was polite and tidy in his operation.” — Mr Cheeseman “Installed our solar panels and battery system, and the whole experience was excellent.” — Ferdinand Eibl “16 PV panels, inverter and battery — the complete installation was coordinated superbly.” — Paul Eathorne “Solar installation, top quality service and products. Absolutely five stars.” — Mr H, Southampton “13 solar panels, battery, inverter, gateway and EV charger installed over two and a half days.” — Peter “From survey through solar installation, it was exactly how it should be done.” — Jon – Lazy & Thankful “The solar panel installation and commissioning was stress free; personnel were friendly and skilled.” — Tony F “Solar system and Heat Pump installation was very smooth, with excellent staff onsite.” — JJ “Had Solar installed by Diamond Green Energy. Everyone onsite was hard working and extremely polite.” — Samuel Drew “We decided to have Solar Panels and Battery installed and made the correct choice.” — Peter Kennedy “Our decision to go Solar resulted in an excellent solar system fit for purpose.” — John King “Installed 18 solar panels, inverter and battery storage. Very happy to recommend them.” — Adam “We now have a solar installation that is a lot better than anticipated.” — Ian Henden

✦ PREMIUM SOLAR SOLUTIONS

Smart Energy Solutions Designed Around You

Bespoke solar energy systems designed to perfectly match your unique requirements. Lower your electricity costs, reduce reliance on the grid and make more use of your own renewable energy. Actual savings depend on your property, energy use, system design, tariffs and weather.

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Solar Panels Battery Storage EV Charging

20+ Years’ Industry Experience

2,700+ Trustpilot Reviews

20+ Years’ Experience

2,700+ Trustpilot Reviews

904,000,000 Wh

Our installs have generated Estimated live total based on installation volume and assumed typical annual generation; not live metered data.

100% Customer-Focused Service

ABOUT DIAMOND GREEN ENERGY

Expert Advice And Outstanding Service

At Diamond Green Energy, we are committed to making renewable energy accessible and affordable. We help homeowners and businesses transition to cleaner, smarter energy solutions designed around their individual needs.

Our team provides a personalised service from the initial consultation through to installation and ongoing support. Our goal is to deliver reliable systems that maximise efficiency, reduce energy costs and provide lasting value.

Premium-quality solar panels and equipment
Comprehensive warranties and ongoing support
Tailored solutions designed around your energy goals

OUR PROCESS

We Are With You Every Step

A highly personalised approach with ongoing support throughout your renewable energy journey.

Free Solar Assessment

We begin with a free phone-based solar assessment to understand your property, energy usage, goals and available budget before preparing the initial proposal and design.

“They explained everything clearly and made us feel confident.” Customer feedback

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Bespoke Design

There is no one-size-fits-all solution. Your system is designed around your property, energy consumption and future requirements.

“The proposed system was carefully explained and designed around our needs.” Customer feedback

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Onsite Technical Survey

If you choose to progress after the initial assessment and design, our surveyor visits your property to validate the proposal against the building itself. We confirm roof measurements, pitch, orientation, shading, access, cable routes and suitable equipment locations, refining the design where required. A £150 technical survey fee is payable when the onsite survey is booked; if you proceed with the installation, this is refunded or credited against your order.

“Your proposed design is checked against the property before installation is finalised.” Design assurance

Expert Installation

Our qualified installation team completes every project with care, attention to detail and minimal disruption to your property.

“The installation team were professional, tidy and helpful throughout.” Customer feedback

View recent installations

System Handover & Ongoing Support

Once installation is complete, you will receive a comprehensive handover pack containing your relevant certificates, manuals and system information. We will also explain the ongoing support available, including our customer portal, technical assistance and optional care plans.

“Everything was clearly explained, all documentation was provided and continued support was available when needed.” Customer feedback

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Ready to start your solar journey?

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OUR PROJECTS

Recent Installations

Explore a selection of successful renewable energy installations completed across the UK.

Worcester Park installation Completed

Location Worcester Park

Solar capacity 7.68kW

Usable storage 24.32kWh

Estimated savings 92% bill reduction

£1,638 projected first-year saving

Performance 7,031kWh annually

77% projected grid independence

System type Single-phase solar and battery system

Solar panels 16 × AIKO 480W panels

Inverter and battery Hanchu 6kW hybrid inverter with 5 × 5.12kWh battery modules

Reading installation Completed

Location Reading

Solar capacity 4.8kW

Usable storage 5kWh

Estimated savings 92% bill reduction

£877 projected first-year saving

Performance 4,278kWh annually

71% projected grid independence

System type Single-phase solar and battery system

Solar panels 10 × LONGi 480W panels

Inverter and battery GoodWe 3.6kW hybrid inverter with 5kWh usable battery storage

Redhill installation Completed

Location Redhill

Solar capacity 6.72kW

Usable storage 26.28kWh

Estimated savings 64% bill reduction

£1,268 projected first-year saving

Performance 4,984kWh annually

63% projected grid independence

System type Single-phase solar and battery system

Solar panels 14 × AIKO 480W panels

Inverter and battery Sigenergy 6kW SigenStor controller with 3 × BAT 10.0 modules providing 27.12kWh nominal storage

Brighton installation Completed

Location Brighton

Solar capacity 8.16kW

Usable storage 13kWh

Estimated savings 95% bill reduction

£1,397 projected first-year saving

Performance 6,892kWh annually

66% projected grid independence

System type Single-phase solar and battery system

Solar panels 17 × LONGi 480W panels

Inverter and battery GoodWe 8kW ESA hybrid inverter with 5kWh and 8kWh battery modules providing 13kWh usable storage

Persistent rain continued throughout this installation despite the surrounding summer heatwave. Our team adapted to the challenging conditions and still completed the multi-aspect solar array, battery system and full panel bird protection to the expected Diamond Green Energy standard.

Havant installation Completed

Location Havant

Solar capacity 4.24kW

Usable storage 4.86kWh

Estimated savings 63% bill reduction

£593 projected first-year saving

Performance 3,195kWh annually

61% projected grid independence

System type Single-phase solar, battery and EV charging system

Solar panels 8 × AIKO Neostar 530W dual-glass panels

Inverter and battery Hanchu 3.68kW hybrid inverter with 5.12kWh battery storage and a black MyEnergi Zappi EV charger

A carefully completed slate-roof installation requiring additional precision to integrate the mounting system neatly while protecting the existing roof covering. The finished system combines premium all-black AIKO panels, Hanchu battery storage, bird protection and intelligent Zappi EV charging.

Cheltenham installation Completed

Location Cheltenham

Solar capacity 6.58kW

Usable storage 9.72kWh

Estimated savings 105% bill offset

£1,127 projected first-year saving

Performance 5,274kWh annually

89% projected grid independence

System type Single-phase solar and battery system

Solar panels 14 × AIKO 470W panels

Inverter and battery Hanchu 6kW hybrid inverter with 2 × 5.12kWh battery modules providing 9.72kWh usable storage

A high-performing residential system designed to generate substantially more electricity than the property's modelled annual consumption. The paired Hanchu batteries maximise solar self-consumption, while surplus generation can be exported to help offset the remaining electricity costs.

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GENUINE CUSTOMER FEEDBACK

Trusted For Solar Excellence

Genuine customer feedback covering solar installations and wider Diamond Green Energy service.

★★★★★ 4.8 on Google Based on 99 reviews ★★★★★ 4.9 on Trustpilot Based on 2,718 reviews

★★★★★

Trustpilot

Diamond Green Energy did an outstanding job installing our home solar panel system, and we are extremely happy with the results.

The whole team was excellent from start to finish. Cameron made the sales process informative, professional, and straightforward, while Sam provided excellent post-installation support and has been first class throughout. The installation itself was carried out efficiently and to a very high standard.

Throughout the project, the team kept us well informed, were always on top of everything, and were quick to answer any questions we had. Their communication and customer service were excellent from beginning to end.

A special mention goes to the installation team, including Dec and Arthur. Dec did an excellent job installing the panels, working in extremely hot weather conditions while maintaining a high standard of workmanship. Arthur, the electrician, also carried out a superb installation and wiring job, ensuring everything was completed neatly, professionally, and with great attention to detail.

It was clear that everyone involved took pride in their work and cared about delivering a quality installation.

I would highly recommend Diamond Green Energy to anyone considering a solar panel system or looking for honest advice, expert recommendations, and a company that provides excellent service from start to finish.

★★★★★

Trustpilot

Diamond Green Energy is the best solar installer in the UK, full stop. As a tech enthusiast, I did thorough research by getting quotes.

★★★★★

Trustpilot

I have just had solar panels installed by Diamond Green Energy. Now I dont usually bother following up with a review, but the level of service.

★★★★★

Trustpilot

Diamond recently installed 16 PV panels, inverter and battery at our new build in Hereford. Presales advice was excellent and once the system config was agreed.

★★★★★

Trustpilot

Diamond Green Energy installed our solar panels and battery system, and the whole experience was excellent. They were professional, efficient, and offered a very competitive quote.

★★★★★

Trustpilot

I had disaster with my previous solar Company to the extent that they removed my solar system. Diamond Green came to my rescue. They installed a new panel.

★★★★★

Trustpilot

We had 13 solar panels/battery/inverter/gateway/EV charger installed over two and a half days. From the point that we made an initial enquiry in December.

★★★★★

Trustpilot

From the initial introduction and survey, through to the solar installation, it was an example of exactly how it should be done. A smooth, faultless operation.

★★★★★

Trustpilot

Contacted Diamond following a recommendation from friends. Initial phone call with Cameron resulted in a comprehensive quote being emailed immediately after the call. This showed a satellite.

★★★★★

Trustpilot

Very competitive pricing and prompt delivery. The solar panel installation and comissioning was stress free and the personel were friendly and skilled.

★★★★★

Trustpilot

The engineer was polite and tidy in his operation.

★★★★★

Trustpilot

Diamond Green Energy installed 18 solar panels, inverter and battery storage. The work was more demanding on an old house. All members of the team were good.

★★★★★

Google

What an amazing team.

I have had two air con installations from the team at diamond on separate properties. And both time the installs have been absolutely flawless. The team pay great attention to detail and do an amazing job while fitting the systems.

With this high level of service, I decided to get solar from diamond as well. The solar install did not quite go as smoothly as one might expect with a few issues popping up before and during the install. I can happily say that the issues were all resolved very swiftly and that the after sale customer support provided by the team was absolutely fantastic.

★★★★★

Google

We had our service done by Robert Nugent here in Bournemouth. He did an excellent job, was very helpful, and answered a lot of our questions. He also gave us some good advice. Many thanks.

★★★★★

Google

Some teething issues with communication later in the process but can't fault their customer care. I would recommend them.

★★★★★

Google

All good. Communication beforehand and on the day great.

★★★★★

Google

Ian was on time. His knowledge and logic with figuring out the antiquated system we have is impressive. We're waiting for his quote to bring our system into the 21st century. My son recommended Diamond after the outstanding service he received from this company.

★★★★★

Google

Engineer had a busy day and was running late and rang to check if he could visit in the evening which was fine for us. Good service by Engineer most would have gone home and left it till another day.

★★★★★

Google

Very reliable company.used many times now always turn up on time & send a text message when engineers on his way which is very useful. Great service all round keep up the good work.highly recommended

★★★★★

Google

Drew did an amazing good.

★★★★★

Google

quick and efficient service, thanks

★★★★★

Google

First class service from start to finish. Very clean work, excellent customer service, in all 10 out of 10, can't recommend highly enough.

★★★★★

Google

Great experience with the team at Diamond Green! Highly recommend.

★★★★★

Google

Very good Service. Excellent.i would definitely recommend this company to anyone

★★★★★

Google

Brilliant service as usual, big thanks to the engineer and back room staff.

★★★★★

Google

The service was completed with no fuss or bother whatsoever. Very satisfied

★★★★★

Google

He was very good and clean at his job and told me what he had done

★★★★★

Google

Pleasant,efficient young man ,excellent job as usual by the engineer.

★★★★★

Google

Very professional and went the extra distance to help us out! Very impressed. Thank you very much!

★★★★★

Google

Very efficient. Appointment kept and helpful engineer

★★★★★

Google

Amazing service, as always. Wouldn’t use anyone else

★★★★★

Google

Professional.. reasonable.. and efficient quote to finish !! Highly recommend 👍 …

★★★★★

Google

Excellent service by a very pleasant engineer, Rob

★★★★★

Google

Brilliant company,excellent staff, unbeatable service

★★★★★

Google

Sorry Louise fo taking so long with the review Thanks Jw

★★★★★

Google

Extremely professional and understanding.

★★★★★

Google

Great company, best recommended

★★★★☆

Google

Excellent and professional all the the time

★★★★★

Google

Swift response and professional help

★★★★★

Google

Always available for help

★★★★★

Google

Great service 🙂