Tesla Certified Installer
Tesla Powerwall 3, installed by Geko
Geko Energy is a Tesla Certified Installer. Powerwall 3 is a 13.5 kWh home battery with a solar inverter built in, fitted by our own engineers across England and Wales.
The system
One battery with the solar inverter built in.
Powerwall 3 combines a 13.5 kWh battery with a solar inverter, so your panels connect straight to it. Fewer boxes on the wall, and one app for the whole system.
Need more storage? Add up to three Powerwall 3 Expansion units, each another 13.5 kWh. Want backup? Backup Gateway 2 separates your home from the grid in a power cut and keeps it running on battery and solar.
We design the system around your usage, tariff and roof, then fit it with our own engineers. Fox ESS, Sigenergy and EcoFlow are there too, and we recommend the one that suits your home.
Specifications
Powerwall 3 at a glance.
Per Powerwall 3 unit.
Add up to three Powerwall 3 Expansion units, 13.5 kWh each.
Panels connect directly to Powerwall 3.
230 V, sized to your supply and your network operator's limits.
Detects a power cut, separates your home from the grid and keeps it running on battery and solar.
Tesla's warranty, with at least 70% capacity retained. Needs an internet connection.
See generation, battery, usage and grid import and export on your phone.
Why we fit it
Why Powerwall 3 is in our line-up.
Solar inverter built in
One unit handles the panels and the battery. Fewer components, simpler wiring.
Room to grow
Start with one Powerwall 3 and add Expansion units later for an EV or heat pump.
Backup in a power cut
Backup Gateway 2 separates your home from the grid and keeps it running on battery and solar.
The Tesla app
See your solar, battery, usage and grid import and export in one app.
Fitted by a Tesla Certified Installer
Our own employed engineers, a 6-year IAA insurance-backed guarantee and the paperwork handled. No doorstep sales.
Wall Connector too
Tethered Type 2 charger for Tesla and other electric cars: up to 7.4 kW on single-phase, up to 22 kW on three-phase.
Is Powerwall 3 right for your home?
Book a free video consultation. An engineer looks at your roof, usage and tariff, and recommends Powerwall 3, Fox ESS, Sigenergy or EcoFlow PowerOcean.
FAQ
Questions about Tesla Powerwall.
Is Geko a Tesla Certified Installer?
Yes. Geko Energy is a Tesla Certified Installer for Powerwall 3, Powerwall 3 Expansion, Backup Gateway 2 and the Tesla Wall Connector. Our own employed engineers design and fit them.
How much does Powerwall 3 store?
Each Powerwall 3 stores 13.5 kWh of usable energy. Up to three Powerwall 3 Expansion units can be added, each another 13.5 kWh, for up to 54 kWh in total.
Does Powerwall 3 work in a power cut?
With Tesla Backup Gateway 2 fitted, yes. It detects the power cut, separates your home from the grid and runs it from the battery and solar. Without Backup Gateway 2, Powerwall 3 gives no backup power. We confirm what will run on your quote.
Does Powerwall 3 need a separate solar inverter?
No. Powerwall 3 has a solar inverter built in, so the panels connect straight to it.
What warranty does Powerwall 3 have?
Tesla's warranty is 10 years, with at least 70% of capacity retained, as long as the Powerwall stays connected to the internet. Our work carries a 6-year IAA insurance-backed guarantee.
Can you fit a Tesla Wall Connector too?
Yes. Tethered Type 2 charger for Tesla and other electric cars: up to 7.4 kW on single-phase, up to 22 kW on three-phase.
How much does Powerwall 3 cost?
It depends on how many units you need, whether you're adding solar at the same time and your home. You get one total price in writing after a free video consultation.
Is there VAT on a Tesla Powerwall?
Batteries installed in homes are zero-rated for VAT until 31 March 2027, then 5% from 1 April 2027.
News: Geko Energy is now a Tesla Certified Installer →
Comparing battery quotes? How to choose a home battery in the UK →
Tesla, Powerwall and Wall Connector are trademarks of Tesla, Inc. Geko Energy is an independent installer. Product specifications change, so we confirm the exact model and warranty terms on your quote.
Let's find the right system
for your home.
Book a free video consultation. We'll talk through your home and your options.
0% VAT on solar installs completed by 31 March 2027
