Tesla Powerwall
The Powerwall is an integrated battery system that stores your solar energy for backup protection, so when the grid goes down your power stays on. Your system detects outages and automatically recharges with sunlight to keep your appliances running for days.
It solves one of the biggest problems of sustainable energy: while solar panels are great for collecting energy during the day, they’re not so good at night – but that’s when we tend to use electricity the most.
Powerwall is a home battery that stores solar energy so you can use it day or night and self-power your home. Solar panels typically generate more clean energy than your house can immediately use. Powerwall stores that excess solar to make it available on demand, maximising your use of solar and reducing your reliance on the grid. Through the Tesla mobile app, you gain full visibility and control over your self-powered home.
The Telsa Powerwall can power an average two-bedroom home for a full day. Compact and simple to install, Powerwall 2 is a completely automated system that requires no maintenance.
The Powerwall 2.0 has more than twice the energy storage capacity of the original version with 13.5 kWh capacity. Over double the capacity means double the ability to keep your home humming with guilt-free electric power.
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Frequently Asked Questions
- How Big Is A Tesla Powerwall?
- How Long Does It Take To Charge A Tesla Powerwall ?
- How Many Tesla Batteries Are Needed To Power A House ?
- Can You Go Off-grid With A Tesla Powerwall?
- How Many Solar Panels Do You Need To Charge A Tesla Powerwall ?
- How Many kWh Does A Tesla Powerwall Hold ?
- Should I Charge My Tesla Battery Every Night ?
- Can You Use A Tesla Powerwall Without Solar?
- Are Battery Storage Products MCS Certified?
- What Is The Tesla Powerwall Lifespan?

Tesla Energy Plan
Is the Tesla Energy Plan Managed by Tesla?
Tesla’s authorized retail partner, Octopus Energy, administers the plan. By joining the Tesla Energy Plan, you will become part of Tesla’s UK Virtual Power plant. Your Powerwall will be managed by Tesla and connected to a growing network of homes across the UK. The plan is designed to help support the energy needs and stability of the electricity grid–while providing you with ongoing savings through the most competitive rates in the market.
- A Tesla vehicle
- Electric Vehicle Charger installed at your home or are able to have one installed
- Solar panels and Powerwall 2 (Or a home suitable for this)
- Residential electricity supply
- You are eligible for the 11p / kWh tariff if you have:
- Solar panels and Powerwall 2 (Or a home suitable for this)
- Residential electricity supply
What If I Don’t Have Solar Panels Installed?
To be eligible for the Tesla Energy Plan, you must have both solar panels and Powerwall 2 installed. To install solar panels, ideally you’ll need a minimum clear space of 24 square meters – about the size of a parking space – available on your roof. The area should be free of shading from trees, chimneys or other buildings for most of the day to get the maximum energy generation from your panels. A Tesla Energy Advisor or your local Tesla Powerwall Certified Installer can help assess system sizing and provide a quote on solar and Powerwall.
I Already Have Solar And Powerwall. What Is Next?
You can transfer onto the Tesla Energy Plan straight away by switching your retail plan. You need a smart meter in your home; however, Octopus can arrange to have one installed at no charge.
Do I Have To Own A Powerwall To Sign Up?
Yes, you must own a Powerwall 2 to sign up. The Tesla Energy Plan combines solar with Powerwall to maximise your savings. If your Powerwall installation is already scheduled, we will manage the tariff transfer process once your system is installed.
Tesla Powerwall
Tesla Powerwall Specifications:
- Touch Safe - Touch safe for the entire family with no live wires or bulky vents.
- Flexible Installation - Wall mounted or floor mounted, stack up to nine Powerwall units to power homes of any size.
- Durable Design - Water resistant and dustproof enclosure for installation inside or outdoors.
- Always Connected - Monitor your solar energy use in real-time and receive alerts when Powerwall is preparing for cloudy or severe weather.
Tesla Powerwall Battery Price:
13.5 kWh
Depth Of Discharge
100%
Efficiency
90% round-trip
Real Power
Max Continuous 3.68Kw/5Kw
Supported Applications
Solar self-consumption
Time of use load shifting
Warranty 10 years
Up to 10 Powerwalls
Operating Temperature
-20°C to 50°C
Dimensions L x W x D : 1150mm x 755mm x 155mm
Weight
125kg Installation
Floor or wall mounted
Indoor our outdoor
Certification
Grid Standards UK G83 / G59 / G100
At Empower, we always make sure our customers receive top of the market products at a competetive price.
Tesla powerwall is a stylish product that brings battery storage to a new level.
Tesla Powerwall
Bringing Battery Storage To A Whole New Level Of Genuis

Frequently Asked Questions

Can You Go Off-grid With A Tesla Powerwall?

How Long Will A Tesla Powerwall 2 Battery Last?

Should I Charge My Tesla Battery Every Night?

What Is The Tesla Powerwall Lifespan?

Are Battery Storage Products MCS Certified?

How Many Batteries Are Needed To Power A House?
On average if your energy usage is around 9kwh a day with a 120 square meter house size then 1-Tesla Powerwall battery is recommended to power your home.
If your household’s electricity usage and house size are significantly more, you may require 2 + Tesla powerwalls in order to completely power your home. However, powerwalls are not designed to fuel homes for days on end they are designed as a backup to a solar system when daylight has passed, and your solar system is no longer absorbing the sunlight. The Tesla Powerwall 2 is fully equipped so that in the event of power cuts or unexpected disruptions to the primary energy source your home still has the ability to carry on running as normal without any issues.

How Many kWh Does A Tesla Powerwall Hold?

How Many Solar Panels Do You Need To Charge A Tesla Powerwall?
2.25x1000/400 = 5.625 kW of solar panels. On average battery storage devices such as the Tesla Powerwall 2 benefit people using 5kWh solar systems or more. If you're looking to invest in a Tesla Powerwall, you need to consider whether your solar system generates enough spare energy and has the ability to fully charge a Tesla Powerwall 2. We recommend only purchasing a Tesla Powerwall if your solar system is a 5kWh system or larger otherwise you could be at a disadvantage and won’t necessarily benefit from your storage device how you should. A 5kWh system is made up of either 17 solar panels using 300W panels or 20 panels using 250W panels. With your 5kWh system, you can produce enough solar to power a home, however, in the winter, your solar system will produce significantly less which consequently means you'll need to rely more on the grid as well as your tesla Powerwall for energy. Whereas in the summer your solar system will enable your home to run for a longer period with less reliance on the grid and your Tesla Powerwall.

How long does it take to charge a Tesla Powerwall?
