Level up your solar system with a solar battery storage solution.

We’re the number 1 supplier and installer of solar batteries in Carmarthen, St Clears, Narbeth and Pembroke.

Energy Security

Take control over your energy supply in part or entirely by minimising your reliance on grid supplied electricity.

Clean Energy

Do your bit for the environment by generating clean energy from the most sustainable energy source in the universe.

Smart Homes

Adding solar batteries means you can use energy when you need it, not just when it’s being generated.

Why SolaX Batteries?

Designed and manufactured by SolaX, Triple Power is offering a NEW 5.8kWh model that can be installed in series with up to 4 batteries enabling 23kWh of storage. The new Triple Power encompasses the very latest in LFP technology which ensures much safer installations with wider temperature tolerances. With a 10-year warranty and 90% depth of discharge, the new Triple Power battery is a flexible, practical, high-performance energy storage solution.

  • Multiple Communication Interface
  • IP55 Protection Level
  • Auto Power Replenishment Tech
  • Floor Or Wall Mounting
  • Long Life Cycle
  • Safest LiFePO4 battery
  • 3.0/6.0/9.0/12.0kWh
  • Working Temp -30~50°C
  • Long Life Cycle
  • IP65 Protection Level
  • Less Self Consumption
  • Safest LiFeP04 Battery

Are you able to add solar battery storage to your existing solar panel and inverter?

There are several considerations when adding a battery storage solution to an existing solar panel installation.

In order to ensure maximum efficiency between panels, inverter, charge controller and battery, you may need to replace one or more components in order to store your solar generated energy.

Depending on when you had your solar panels installed and their relative condition, you may not generate enough electricity to take full advantage of the storage capacity.

If you use more energy than your panels create, you’ll still need to rely on the grid to provide you with the additional electricity. Storage batteries work best when they’re used at times when the panels produce no energy.

Solar Battery Remote Monitoring

Monitor your solar batteries in real-time, see its current charge, historical charging data and even choose when and if you want to charge your battery from the grid during cheaper electricity tariffs, all from your smartphone or tablet.

  • Real-time display
  • Functionality control
  • App or web portal

get a quote to upgrade your system to include solar battery storage

Why Big Green Solar?

We’re Experienced

We’ve been installing solar panels in Wales and the West for over 10 years. This experience has taught us that you can never do enough planning before committing to a build.

Solar Projects

We’re Precise

Because we take great care in our planning, the precision by which we work is one of our proudest achievements. This goes for our building work, our wiring and especially our energy calculations.


We’re Customer Focused

We believe a business is as good as its customers say it is. That means we go to great lengths to ensure our commitment to good communication is prompt, clear and friendly.