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.

After a quick and hassle free installation in April 2011, I have now had 4 years of trouble free solar power.

Review by Mrs Picksley

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

My Contribution Ltd sent round an excellent team of fitters for our solar panels who were knowledgeable, friendly and tidy. They completed the work in time and were a joy to have in our home.

Review by Mr Shaw-Brookman
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