Ynni Cymru Grant
Community Groups, SMEs & Public Bodies: Claim Funding for Solar & More If you help run a community centre, village hall, or sports club in Wales — this is your
05/13/2025
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.
Telephone: 01269 500388 I Email: info@celticgreenenergy.co.uk
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
Follow the links on the following categories.
Switching to renewable energy isn’t just good for the planet — it’s helping homeowners across Wales save thousands on their energy bills. From solar panels and batteries to heat pumps and EV chargers, our customers are already seeing the benefits.
✅ Lower energy bills and reduced grid reliance
✅ Expert installations with 5-star customer service
✅ Real results from real homes across Wales
See why so many people trust Celtic Green Energy — and why they’re recommending us to their friends and family.
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!
At Celtic Green Energy, we believe that sustainability should be rewarding. With our Refer a Friend Scheme, you and your friends can earn up to £150 when they switch to solar panels, heat pumps, or battery storage with us. It’s our way of saying thank you for helping more people embrace clean, renewable energy.
Community Groups, SMEs & Public Bodies: Claim Funding for Solar & More If you help run a community centre, village hall, or sports club in Wales — this is your
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
Why You Need a Home Battery Backup System Power outages are unpredictable, especially in the UK, where storms and strain on the national grid can leave homes without electricity for
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:
You can download a copy of the Trustmark Customer Charter and Code of Conduct here:
We take all feedback seriously. If you have concerns, we encourage you to contact us directly:
Please Complaints and Feedback page for more information.
If we are unable to resolve your complaint, you can escalate it via our ADR provider, in line with TrustMark requirements. Details will be provided in your contract.
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.
We are located near Cross Hands in Carmarthenshire
Look out for our distinctive Celtic Green Energy vans
4.7 
27 Reviews
Very impressed with the company. The installers were very good and helpful. Everything was explained and easy to understand.
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.
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.
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:
