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.
From initial system design through to installation, testing, and handover, we deliver reliable renewable energy systems backed by full certification and ongoing support.
We install complete solar and battery storage systems designed around your home and how you use electricity.
Our installations include:
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.
We explain options in plain English so you can make confident decisions about your home energy system.
With over 25 years of industry experience, we understand both renewable systems and the electrical infrastructure they connect to.
e 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.
We design each system based on your property, usage patterns, and future plans, rather than using a one-size-fits-all approach.
We install systems from leading solar, battery, and smart energy manufacturers including SolaX, Myenergi, Eleven Energy and other industry-recognised brands.
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.
We make the installation process simple and straightforward, keeping you informed at every stage.
Initial discussion and system advice
We discuss your property, energy usage, and what you want to achieve, whether that is reducing bills, adding battery storage, or preparing for future EV charging.
Site survey and system design
We assess roof space, shading, cable routes, and electrical infrastructure to design a system tailored to your home.
Clear quotation and system specification
You receive a clear written quotation and system details, with no pressure and no confusing technical jargon.
Professional installation
Installations are carried out safely, neatly, and in accordance with current standards, with minimal disruption to your home.
Testing, commissioning, and certification
We fully test the system, complete commissioning, and provide all relevant certification and handover information.
Handover and ongoing support
We show you how your system works, how to monitor performance, and remain available for support and future upgrades.
Find answers to our solar panel services here. We cover everything you need to know about our business & process
Can't find the answer you're looking for? Feel free to get in touch with our team - we're here to help!
Solar panels can reduce your electricity bills, lower your carbon footprint, and increase property value by providing renewable energy.
Solar panels convert sunlight to electricity through photovoltaic cells. The DC electricity generated is converted to AC by an inverter, making it usable for your home or business.
Installation costs vary by system size, location, and needs. We provide free estimates to give you an accurate quote.
Solar panels typically last 25 years or more with proper maintenance, though efficiency may slightly decline over time.
Yes, solar panels still generate electricity on cloudy days, though with reduced efficiency.
Minimal maintenance is needed. We recommend periodic cleaning and inspections, and we offer maintenance services for optimal system performance.
If you have any other questions or want to learn more about our PV solar and battery storage solutions, please contact us. We’re here to help!
