One local team, start to finish
Your survey, installation and aftercare all come from our own team, based in St Helens and covering the North West. There's always someone close by who knows your system.
Tesla Powerwall 3 ยท fitted by your local certified team
Tesla Powerwall 3 installation across St Helens & the North West
Store your solar power or cheap off-peak energy, cut your bills, and keep the lights on in a power cut. Get a free, fixed-price quote, then leave the survey, install and paperwork to us.
See your estimate online in minutes, confirmed at a free home survey.
✓ 13.5kWh whole-home backup
✓ 0% VAT until March 2027
✓ Tesla Certified Installer
The Powerwall 3 at a glance
One of the most powerful home batteries you can buy
E-Verve Energy is a local, independent installer of the Tesla Powerwall. Our team in St Helens design, fit and look after your system.
13.5kWh
usable storage per unit
11.5kW
continuous & backup power
10yrs
Tesla warranty
~54kWh
expandable by stacking units
Technical specification
Tesla Powerwall 3 key specs
| Usable energy | 13.5kWh per unit |
|---|---|
| Continuous power | 11.5kW (on-grid and backup) |
| Inverter | Integrated solar inverter, around 97.5% round-trip efficiency |
| Expandability | Stackable, up to around 54kWh by adding units |
| Backup | Whole-home backup, switches over automatically in a power cut |
| Monitoring | Live monitoring and control via the Tesla app |
| Warranty | 10-year Tesla warranty |
| VAT | 0% VAT on battery storage until 31 March 2027 |
Why fit it with E-Verve
A local, independent Tesla Powerwall installer that handles everything
We look after design, survey, installation, certification and aftercare. One local team, one clear price.
An instant, fixed price
Build your system online and see a clear, itemised price in minutes. We then confirm it at a free home survey.
Whole-home backup power
With 13.5kWh of storage and 11.5kW of output, a Powerwall 3 keeps your lights, fridge, heating and even an EV charger running through a power cut, and you watch it all live in the Tesla app.
Certified and sorted for you
As a Tesla Certified and MCS-certified installer, we handle the DNO application and certification. The paperwork is done, and the battery qualifies for 0% VAT until March 2027.
Recent work
Our own Powerwall installs across the North West
Powerwall 3 FAQs
The questions we get asked most
Do I need solar panels to have a Powerwall?
No. We can fit a Powerwall 3 alongside new solar, retrofit it to panels you already have, or install it on its own to store cheap off-peak electricity. Battery-only installs still qualify for 0% VAT until March 2027.
How much does a Powerwall 3 cost, installed?
It depends on your home and whether you're adding solar. Enter your address for an instant online estimate, which we confirm at a free survey.
Will it power my home in a blackout?
Yes, with the addition of a whole-home backup gateway. With 11.5kW of backup power it keeps your lights, fridge, heating and even an EV charger running, switching over automatically when the grid goes down.
How long does installation take?
Most installs are completed in a day. We handle the DNO application and certification setup for you.
Do you install Tesla Powerwall in my area?
We're an independent, local installer of the Tesla Powerwall. We're based in St Helens and cover the North West, including Warrington, Wirral, Liverpool, Manchester and Chester.
What warranty do I get?
Every Powerwall 3 comes with Tesla's 10-year warranty, and our local team handles any aftercare directly.
Tesla, Hanchu, Sigenergy and product names are trademarks of their respective owners. E-Verve Energy is an independent installer.
Get your free Powerwall 3 quote
Type your address for an instant online estimate, confirmed at a free home survey. No obligation.
0% VAT until March 2027 · Local, in-house team · Fixed-price quotes