Tesla Powerwall 3 Expansion Pack
Low Price £5,499
Available while stock lasts. If you order a Powerwall 3 Expansion between 1 December 2025 and 31 March 2026, and have it installed, connected and registered by 31 May 2026, Tesla will give you £375 per unit, up to £750 back, paid as a Virtual Visa reward card.
Save up to £739 a year by storing and using more of your own energy.
This upgrade adds a new 13.5kWh Powerwall 3 Expansion battery to your existing Tesla system, allowing you to store more of the solar you already generate, charge overnight and use it when energy prices are highest. Installation is handled by our certified engineers and designed to integrate seamlessly with your current setup.
- Fully compatible with your existing Tesla system.
- Reduce your bills with smarter energy usage.
- One-off investment, long-term savings.


