Power Your Home with Renewable Energy Save Up to 80% on Bills

Switch to solar energy and take control of your household costs. Trusted by homes and businesses across Wales, we provide expert installation with the highest-efficiency solar panels and long-term support.

  • MCS & RECC Accredited Welsh Installers
  • No Subcontractors – In-House Experts
  • 13 Years Experience
  • Proudly serving communities across Wales

Telephone: 01269 500388  I  Email: [email protected]  

Powering a Greener Future with Expert Solar Solutions

Celtic Green Energy is one of Wales’ leading independent solar power installers, delivering high-quality solar PV systems, battery storage, and renewable energy solutions since 2013. With over a decade of expertise, we have built a strong reputation for excellence, reliability, and customer-focused service.

We use only the best-in-class solar panels, inverters, and energy storage systems, ensuring maximum efficiency, durability, and long-term performance for homes, farms, and businesses across Wales and the UK. As an approved installation partner of Octopus Energy, we provide exclusive access to their innovative smart energy tariffs and cutting-edge renewable technology, helping our customers make the most of their investment in green energy.

Whether you’re looking to reduce your energy bills, lower your carbon footprint, or achieve energy independence, we have the perfect solution for you. Explore our services today and take the next step toward a sustainable future

Renewable energy solutions:

Learn more about our range of renewable energy solutions that will help you find the best option for your needs.

Follow the links on the following categories.

Solar PV Panels
Solar PV panels are the perfect way to capture FREE energy from the Sun's rays and convert it into electricity. You can learn more about the various solutions we have available to suit your needs here.
Energy Storage
We have a variety of energy storage solutions that allows you to save excess solar energy so it can be used for another time, whether you want it for your heating in the evening, or to charge your electric vehicle overnight.
EV Charger Installation
With the dramatic growth in electric vehicle market, we are able to accommodate the needs of domestic and commercial customers linking EV Charge points to national grid or SolarPV syetms.
Commercial
With growing demands on businesses and industry, renewable energy can offer significant cost savings and environmental demands for carbon CO2 reductions to help meet upcoming government energy targets
Underfloor Heating
Combined with our heat pumps, underfloor heating is the perfect solution for stylish, open plan living. It provides a warm and comfortable feeling underfoot, and come with a range of control options.
Spray Foam Insulation
Sprayed foam can provide effective insulation against the extremities of temperature with excellent coverage for all kinds of properties including newbuilds or renovations including boats and campervans.

GRANTS

Boiler Upgrade Scheme (BUS) in Wales – Get Up to £7,500 for a Heat Pump

Switch to low-carbon heating and slash your energy bills with the Boiler Upgrade Scheme (BUS) in Wales. Homeowners can claim up to £7,500 towards an air or ground source heat pump—but funding is limited!

Lower your heating costs
Increase your home’s energy efficiency
Future-proof your home with renewable energy

Don’t miss out – check your eligibility today!

COMMERCIAL SOLUTIONS

Securing Your Business's Energy Future: Future-Ready Solutions

With increased pressure on businesses to achieve carbon neutrality, solar panels, battery storage, EV chargers, and air source heat pumps present substantial opportunities for reducing your energy consumption and carbon footprint.

BLOG

Discover the Benefits of Renewable Energy...

Octopus Energy In Partnership with Celtic Green Energy

Octopus Energy Partners

Octopus Energy Partners At Celtic Green Energy, we are always looking for ways to enhance our services and provide even greater value to our customers. That’s why we’re thrilled to

Want a quote? claim your FREE Solar Guide...

Download our Solar guide and receive a free quote..

We have compiled a really useful document to tell you all about solar power and how it can help you reduce your energy costs and improve your carbon footprint. You can download this FREE solar guide here – simply submit the following information and our energy advisor will be in touch:

Celtic Green Energy Domestic Booklet

CERTIFICATION

An Assurance of Quality...

You can download a copy of the Trustmark Customer Charter and Code of Conduct here:

Celtic Green Energy prides itself on the superior quality of work and customer satisfaction. We endeavour to follow meticulous attention to detail whilst providing our customers with the reassurance of long term aftercare and support. We maintain our high standards by following the guidelines and regulations of our industry codes of conduct.

LOCATION

The Local Business with Nationwide Care

From our centrally based headquarters near Cross Hands in South Wales, Celtic Green Energy serves the whole of the Welsh principality with our team of specialist renewable energy installers, electricians, plumbers and technicians.

Map Of Wales

We are located near Cross Hands in Carmarthenshire

Celtic Green Vans Collection

Look out for our distinctive Celtic Green Energy vans

Trusted reviews

Celtic Green Energy Ltd

4.7 27 Reviews

CF
Celia Fearne 2024-12-19

Very impressed with the company

Very impressed with the company. The installers were very good and helpful. Everything was explained and easy to understand.

S
Sian 2024-10-15

Great Company, Fantastic heating engineer

Thank you Celtic Green Energy for sending Chris to service my Samsung Gen 6 ASHP. I will always use this company for my ASHP in future. Chris was so thorough , efficient and tons of patience dealing with all my many questions and explaining everything. He sorted my settings out and for the first time since having the pump fitted I feel I can relax and stop worrying constantly about the running of my ASHP. I would recommend this company(especially Chris) to anyone whether requiring a service or an ASHP installed. Great customer service too.

JiG
John in Gorslas. 2024-04-19

Air source Heat Pump installation, First routine service.

We had a complete installation of a central heating and domestic hot water system, powered from an air source heat pump by Celtic Green Energy, in January last year. It has been up and running perfectly for just over a year, so I called upon Celtic Green to carry out an annual service check and inspection. This was carried out on Tuesday of this week, after waiting for a dry day to service the heat pump which is sited outdoors. This was carried out and everything was found to be running perfectly with no leaks or faults apperent.

Friendly local customer support

Investing in renewable energy can be a minefield of complicated and confusing information with an abundance of bewildering online propaganda. To help address this issue, we offer our customers the opportunity to speak to someone in person about their individual circumstances, whether they own a small terraced house or a large factory.

Our Cross Hands based customer service team can offer you the comfort of local knowledge, professional expertise and friendly customer support.

If you have any questions or need further advice, feel free to contact us direct on 01269 500388 or contact us here:

Customer Service Celtic Green Energy
CHRISTMAS HOLIDAYS
Christmas Opening Card

OPENING TIMES

Our offices will be closing on Friday 22nd December and reopening on Monday 8th January

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