Tesla Powerwall 2
Powerwall 2 is a game-changer for the grid storage market. No other manufacturer has made such significant product developments in such a short amount of time. Tesla has managed to double their battery’s capacity, reduce its physical size, build in an inverter, at a similar cost to the first Powerwall.
“Tesla is amplifying its efforts to accelerate the move away from fossil fuels to a sustainable energy future with Tesla batteries, enabling homes, business, and utilities to store sustainable and renewable energy to manage power demand, provide backup power and increase grid resilience.”
Powerwall 2’s lithium-ion battery provides energy storage for grid-connected solar self-consumption, load shifting and backup power. A new release from Tesla in Feb 2020, means Powerwall 2 is now able to be installed in off grid applications.
Long life L-ion battery technology
13.5kWh ‘usable’ storage
5kW continuous (7kW surge)
Fully automated operation
10 year conditional warranty
Wall or floor mount (in or outdoor)
Tesla Powerwall 2 FAQ
Powerwall 2 is the newest home battery from US company Tesla. Powerwall 2 can store your solar energy for use at night, and provide power during blackouts.
Please refer to our Pricing tab above for indicative costing or contact us for a tailored quote (some properties require extras such as switchboard extensions and additional cabling).
The payback on any battery system depends on a number of things like your location, your electricity tariffs, how much solar you have, how much energy you use, and many other factors. Energy expert Bruce Mountain estimates payback periods of 5 to 11 years with the right conditions.
There are no federal government rebates for battery systems, but new solar is certainly eligible for the STC incentive scheme. There are a handful of local council rebates for battery systems – for more info please go to our Rebates & Incentives page.
Yes you can! As of Feb 2020, we are now able to design and install an off grid system using the Tesla Powerwall 2.
There are a few requirements for using Powerwall 2 in off grid applications. These include: your site must have reliable internet connection on the day of installation, the Powerwall 2 must be installed ‘within the heat envelope’ of your home, installing a minimum of two Powerwalls, and only for single phase loads.
Contact our friendly consultants to discuss whether the Powerwall 2 is suitable for your off grid project.
Powerwall 2 comes with an inbuilt inverter so all you need are solar modules and a solar inverter. A separate digital meter installs in your switchboard, which tells the Powerwall what your solar and loads are doing (some properties might need a switchboard extensions to accomodate this); you will also need an internet wifi router at your home.
Any ‘third-party’ solar inverter can be used in conjunction with Powerwall 2 thanks to a digital meter that tells the battery inverter what your separate solar and property loads are doing. But only select approved/compatible solar inverters can continue to work during blackout/backup.
No, Powerwall 2 does not require ongoing maintenance. Tesla will occasionally conduct remote software updates, which will happen automatically over the internet connection.
Keeping the product clean and protected from weather extremes and impact is important of course.
Tesla offers a 10-year warranty on Powerwall 2. Your Powerwall will be free from defects for ten years following its initial installation date. A full warranty document can be provided on request.
Powerwall 2 is 1150mm x 755mm x 155mm (H x W x D), and weighs 125kg.
Powerwall 2 uses NMC (nickel, manganese, cobalt oxide) chemistry lithium-ion battery cells.
Moving away from the standard 18650 cell size used in their products to date, Tesla are now manufacturing a new 2150 cell. Tesla say the reason for the change is “physics and economics”, and that the standardization of the 18650 was an “an accident of history” rather than being the best option for cell size.
Yes it will – provided it is installed with an inverter that is capable of ‘island’ mode. Depending on your property and appliances, this might only backup selected circuits and appliances however.
Yes, up to 10 units can be connected together.
Yes, Powerwall 2 can be programmed to charge from your off peak tariff.
Yes, Powerwall 2 can be installed with existing solar systems, but only compatible solar inverters will continue to operate during blackout/backup situations.
Yes, the Tesla Motors App. Which provides real time solar usage monitoring. Tesla send updated software remotely using the system’s internet connection and your Powerwall will update automatically.
Tesla Powerwall battery cells are carefully managed by the inbuilt battery management system. They are also the only battery with liquid cooling controls, decreasing the risk of fire considerably.
Tesla have been refining their recycling program for years, and will accept Powerwall for recycling at the Gigafactory at the end of the products life. Lithium-ion batteries are up to 99% recyclable.