Cornwall-Based Renewable Energy Company – Heat Geek Certified

GreenR Renewables is a renewables-first, engineering-led company specialising in high-performance heat pump systems, solar PV, and integrated low-carbon solutions for homes and businesses.

Design-led systems. Engineer-backed thinking.

We fill the industry gap in Cornwall for a local, trustworthy, multi-skilled renewables team that handles everything - from system design to seamless installation and support. No national firms. No faceless service. Just personal, passionate, performance-driven results.

We are dedicated to building sustainable solutions for a cleaner, more resilient future.

The climate crisis and rising energy bills call for smarter systems - and better choices. We believe in empowering people to live more sustainably through beautifully engineered, fully tailored renewable energy systems.

Our Mission

Our mission is to deliver high-performance, low-impact systems that don’t just meet the rising demand for clean energy - they make a real difference in people’s lives and the future of our planet.

We want every customer to feel proud of their system.

With us, you’ll get a tailored setup that works hard, looks sharp, and delivers value for years to come.

Meet the Team

Cai Palmer

As a qualified Heating Engineer, Cai’s journey into renewables was driven by a deeper calling: to do things properly. He’s hands-on, sharp-eyed, and utterly committed to installing systems that work brilliantly. Precision, clean aesthetics, and smart energy are his hallmarks.

Rich Green

With a Master’s in Renewable Energy, plus qualifications as a Heating Engineer and Electrician, Rich brings true engineering expertise to every project. He lives for performance you can measure, installations you can admire, and an industry that holds itself to higher standards.

Matt Stevenson

An electrician with a passion for renewable energy, Matt combines technical skill with an eye for detail and a strong sense of aesthetics. Drawing on years of customer service experience, he is conscientious in delivering the best possible outcome for every client. Matt’s commitment to quality and his personable approach ensure each installation not only performs flawlessly but also looks exceptional
Frequently Asked Questions
Are you a local renewable energy company?

How do I know if my property is suitable for renewable energy?

What government grants and incentives are available in Cornwall?

What kind of aftercare and support do you offer?

Services

We take full responsibility for the performance of your system - from the first design to the final fix. No outsourcing. No shortcuts. Just beautifully engineered renewables that do exactly what you need them to. Expertly engineered and installed for lasting reliability, high efficiency and technical precision - right down to the smallest detail.

Heat Pumps

Expertly engineered heat pumps for comfort, efficiency and low-carbon living

Solar PV

Tailored solar systems for ecofriendly solutions, lower bills and energy independence

Home Battery Storage

Smart home batteries to store surplus solar power, maximise on savings and enjoy reliable back up during outages

EV Chargers

Reliable EV Charging to maximise off-peak charging at home, integrated seamlessly with your renewable systems

MVHR Ventilation

Improving fresh air quality and removing waste - mechanical ventilation that works beautifully

Underfloor Heating

Invisible warmth beneath your feet, designed for enhanced comfort, even heat distribution and efficiency

Energy Diversion

Maximise your solar — divert excess energy, reduce grid reliance

Servicing & Maintenance

Expert care for reliable renewable systems and long-term optimal performance

Gas & Electrical Works

Certified Gas Safe and NICEIC electrical engineers, offering support and compliant renewables

Proudly Local, Widely Trusted, Fully Certified

We are proud to hold industry-recognised accreditations - not just for show, but because they mean something for you. We are part of the Cornish community and take pride in being the engineers that local homeowners recommend. From our qualifications to the products we use, everything is chosen for performance, longevity, and peace of mind.

MCS Certified Installer - The industry benchmark for renewable installations
Heat Geek Verified - High-performance system design & installation
RECC Member- High consumer protection standards
NICEIC Registered Electrician - Certified safe electrical installation & maintenance
Gas Safe Register - Licensed and legally permitted to undertake gas work (942985)

SolarEdge-Certified Installer - Expert installation of premium solar technology
Vaillant Renewable Partner - Expert product knowledge & technical heating advice
OZEV Approved EV Chargepoint Installer - Access to government grant schemes
Building Compliance - Fully Compliant with Part P & Building Control Regulations
Based in Cornwall - We are truly local (Bude) and not just covering the area

GreenR Renewables did an outstanding job increasing our battery storage capacity with the Pylontech US5000 4.8kW system. The team of engineers was punctual, efficient, and went above and beyond to ensure the installation was completed smoothly. Their attention to detail and dedication to customer satisfaction was truly commendable. Their commitmen...

Bob Willingham

We have worked with the team at Green R Renewables on multiple projects now and their work is always impeccable. There is a genuine care behind the installation with the customers priorities always at the forefront. We always recommend their services to our customers and will continue to do so!

Bowden Architecture

Just had an air source heat pump and hot water cylinder fitted by GreenR Renewables. The team have been great from start to finish. We sought out GreenR due to their heat geek certification after having several quotes from companies who didn't really seem to be clued up on fitting heat pumps. Having a fair amount of knowledge of ASHP ourselves, G...

Jamie Robinson

We engaged with Richard and Cai recently to fit our solar system on my new build property. I was impressed from the start with the communication and great advice on different systems available and the benefits to each. Once we had chosen an option they were quick to have the package available and ready to fit, working around us on site as to when w...

Ben Teague

Super happy with my Vaillant Heat Pump install. The unit is incredibly quiet and you can hardly tell it’s running and it’s also turning out to be super efficient.. I doubt there’s anyone else around who knows as much as these guys and you can be rest assured it’ll be designed correctly unlike others I’ve seen. They also made the Governmen...

Julian Teague

The guys from GreenR Renewables did a fantastic job fitting our solar panels. They were quick, efficient and professional. Richard's expertise and advice really helped us decide on the right system to install. Highly recommended!

Peter New

Cai and Richard have recently installed an air source heat pump for us - their service was second to none! We can’t recommend them highly enough. They dealt with the grant application for us and have been an absolute pleasure to deal with. They really know their stuff!

Mandy Ellicott

Cai and Richard, at GreenR Renewables are amazing! I had a heat pump and solar panels installed with an EDDI. They talked through everything, so that even I could understand the technology and its everyday usage. The savings I'm making through the solar installation is great and how they set it up for the solar to help with the running of the heat...

Nicky B

Installation of solar panels plus battery. The team provided great advice prior to us making a decision. Installation went very smoothly with suitable scaffolding in place (which also allowed inspection of the finished work). Post installation is also very good & responsive. We are very happy with the new system.

Kevin Brown

Really pleased with the install, carried out by professional knowledgeable engineers. High standard of work and took the time to communicate with us, highly recommend them.

Richard Charman

Richard and team fitted a 4.8kw solar system for me recently. I'm very happy with the quality of the kit supplied and the guy's did a brilliant job. Can't fault anything at all! They even took all the boxes and rubbish away! Never had an electrician do that before. FIVE STAR service 👌 Would highly recommend.

Chris Kendall

I recently had the pleasure of working with GreenR and was thoroughly impressed by their professionalism and extensive knowledge in the renewables sector. They provided fantastic service at competitive prices, making the entire process seamless and efficient. I will definitely be working with them again in the future.

Luke Cowling

Why Us

Our Mission

Meet the Team

Are you a local renewable energy company?

How do I know if my property is suitable for renewable energy?

What government grants and incentives are available in Cornwall?

What kind of aftercare and support do you offer?