Battery Storage
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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.

Enquire Today
We are Certified Tesla Powerwall Installers

Take Control

Use the Tesla app to monitor your energy usage and Powerwall battery level. The app allows you to monitor your energy consumption in real time, it will show you how your Powerwall is interacting with your home and solar. You can also view historical data. The Tesla Powerwall app also allows you to configure time-based control, which allows you to set times where your Powerwall can charge and discharge, making sure you are always maximising savings.

Tesla Powerwall Specification

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. 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.

Backup Power

(Now available)

Introducing the Tesla Powerwall Gateway, a device that allows the Tesla Powerwall to seamlessly provide backup power in the even of a power outage. It provides monitoring, energy management, time-based control and backup operation for the Powerwall. It's time to take your Powerwall to the next level, we are one of the only approved Tesla Powerwall installers in Wales, get in touch today for more information or to book your installation.

Tesla Powerwall Backups
Tesla Powerwall Specification
Tesla Powerwall 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)”