Solar, Battery Storage & EV Installation
Dinefwr Electrical & Solar Ltd install solar PV and battery storage systems for homes across Llandeilo, Carmarthenshire, and surrounding areas, helping homeowners reduce electricity costs and make better use of the energy they generate.
As an MCS-certified installer, NAPIT and TrustMark accredited contractor, and Octopus Trusted Installer, we provide safe, efficient installations designed around your property and energy use. Whether you are installing solar for the first time, adding battery storage to an existing system, or planning for future EV charging, we provide clear advice and high-quality workmanship you can rely on.
Accredited, Trusted & Fully Certified
We’re accredited with NAPIT, MCS, and TrustMark, and are proud to be an Octopus Trusted Installer.
What’s Included in Our Solar & Battery Installations
We install complete solar and battery storage systems designed around your home and how you use electricity.
- Solar PV panel systems
- Battery storage systems
- Hybrid and AC-coupled battery systems
- Emergency power backup capability (where system design allows)
- Solar energy diverters for hot water and other energy uses
- Inverter supply and replacement
- System monitoring and setup
- Solar-ready EV charger integration
We can also design systems to maximise self-use of your solar energy, helping reduce reliance on grid electricity and making the most of the energy you generate.
Why Choose Dinefwr Electrical & Solar for Your Solar Needs?
Choosing the right installer is just as important as choosing the right equipment. As a local, electrician-led renewable installer, we focus on safe system design, high-quality installation, and long-term reliability.
Local, experienced electrical specialists
With over 25 years of industry experience, we understand both renewable systems and the electrical infrastructure they connect to.
Fully accredited and certified
We are accredited with NAPIT, MCS, and TrustMark, and are proud to be an Octopus Trusted Installer. We are also registered as an OZEV authorised installer for EV charge point installations.
Designed around your home and energy usage
We design each system based on your property, usage patterns, and future plans, rather than using a one-size-fits-all approach.
Quality equipment from trusted manufacturers
We install systems from leading solar, battery, and smart energy manufacturers including SolaX, Myenergi, Eleven Energy and other industry-recognised brands.
Exclusive Deals With myenergi
We work with myenergi, a leading UK manufacturer of smart home energy technology, to provide customers with high-quality renewable energy solutions that integrate seamlessly with solar and battery systems.
myenergi products are designed to help homeowners make better use of the energy they generate and reduce reliance on grid electricity. Their range of smart energy devices includes technologies such as EV charging, solar energy diversion, and intelligent energy management systems.
By installing myenergi equipment alongside our solar and battery systems, we can help customers maximise self-consumption, improve energy efficiency, and create a smarter home energy setup.
Octopus Energy Partnership & Customer Benefits
As an Octopus Trusted Installer, we can install solar and battery systems designed to work seamlessly with Octopus smart tariffs and energy products.
This can help customers:
- Make better use of off-peak electricity rates
- Store lower-cost energy in battery systems
- Maximise savings from solar generation
- Prepare their home for future smart energy technology
If you are already with Octopus, or are considering switching, we can advise on system design, tariff compatibility, and how to get the best performance from your solar and battery system.
If we introduce you to Octopus Energy, you can also receive £50 account credit when switching using our referral code.
Areas We Cover
Based in Llandeilo, we install Solar PV and Battery Storage Systems across Carmarthenshire and surrounding areas.
We regularly work in:
- Llandeilo
- Ammanford
- Llandovery
- Carmarthen
- Llanelli
- Cross Hands
- Swansea
- Surrounding towns, villages, and rural properties
If you are unsure whether we cover your area, please get in touch and we will be happy to help.