Battery Storage
Installation Wales

With battery storage you can store the electricity from your solar panel system and then use it when you need it. My Contribution are proud to say we are authorised installers for Tesla Energy. Find out how the Tesla Powerwall can help you on your journey to energy independence.

Powerwall comes with a 10-year unlimited cycle warranty with guaranteed energy retention level.

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We are Certified Tesla Powerwall Installers

Touch Safe

The smart modern design of the Tesla Powerwall means there's no exposed wires or vents that children or pets could access.


Don't worry about scalability with the Powerwall 2. This system can be scaled up to 10 Powerwalls!


The battery storage system is IP rated to be installed inside or outside, depending on your preference.


The free Tesla App can update your Powerwall automatically to continually improve the performance of your battery.


The Powerwall runs quietly and with almost no noise. Perfect for indoor installation.


The in-built inverter converts electricity from DC to AC ready for use, so no extra equipment required.

Tesla Powerwall 2 Specs
Mounting Wall or Floor Mounted, Indoor/Outdoor
Inverter Fully integrated Tesla inverter
Usable Capacity Capacity: 13.5 kWh
Power 5 kW continuous, 7 kW peak
Round Trip Efficiency 90%
Operating Temperature Range –20°C to 50°C (–4°F to 122°F)
Warranty 10 years
Dimensions 1150 mm x 755 mm x 155 mm (45.3 in x 29.7 in x 6.1 in)”

What Our Customers Say

We are lucky to have some of the best solar installation customers in Wales. See what some of them have said about us below.

The whole process was trouble free and efficient. Everyone turned up when they said they would and were entirely professional. The installation was completed with minimum disturbance and mess and was up and running on the same day.

Review by Mr Pinson

Had our solar panels and immersun installed in September 2014. The team were professional, friendly and knowledgeable. Would definitely recommend My Contribution, a local firm and first class service..

Review by Mr Phillips

Helpful staff and a smooth installation of panels. In spite of weather problems the panels were installed expertly and swiftly and they were able to work around our time constraints. We were worried about how the panels would look on our slate roof but the black panels we opted for look fine.

Review by Miss Taylor
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