Tesla Powerwall 3 Release Date, Specifications, Cost.

With the great success of the Tesla Powerwall 2, people are already talking about its successor. Although the Powerwall 2 is a fantastic device and can help many households save a lot of money on their power bill, it’s far from a ‘no brainer’ at this point – you need to crunch the numbers to ensure it’s going to be worthwhile to install in your house. But with the cost of lithium-ion dropping rapidly and Tesla competitors chomping at the bit with innovative solutions to battery storage, we’ve no doubt that there’s plenty of work being done on the Tesla Powerwall 3. Could this be the device that finally makes PV solar + storage a standard for homes? Tesla CEO Elon Musk has said that they “expect to sell more Powerwalls than cars” so it’s a major part of their business. What features will the Powerwall 3 have? What will it cost and when can we expect it? Read on for more…

Tesla Powerwall 3 – What can we expect?

Tesla Powerwall 3 Release Date

At this point we aren’t sure exactly when the Powerwall 3 is coming out, but let’s look at the time difference between the Powerwall and the Powerwall 2 and see if that gives us any clues:

Powerwall 1: Development commenced in 2012. Announced in 2015 with a pilot demonstration 0f 500 units built and installed. Production moved from Tesla Fremont to Gigafactory 1. Initially came in two models – 10kWh nickel-cobalt-aluminium cathode for backup and 7kWh for daily cycle application. Work on the 10kWh battery was discontinued and the 

Powerwall 2: Development commencement unknown. Announced in October 2016 at Universal Studios. Production of 2170 cylindrical lithium-ion batteries for the Powerwall 2, Powerpack 2 and Model 3 EVs starts in January, 2017.  First Australian installations early June, 2017. 

Powerwall 3: Potential 2018 announcement.

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Tesla Powerwall 3 Specifications and Features

Tesla Powerwall 1 Specifications and Cost
Tesla Powerwall 1 Specifications and Cost
Tesla Powerwall 1 Specs

  • 1302mm long, 862mm wide, 183cm diameter (51.3″ x 34″ x 7.2″)
  • 7kWh battery (6.4kWh ‘Usable Capacity’)
  • 7kW peak power, 5kW continuous power.
  • Scalable (up to 10 Powerwalls)
  • Weighs 97kg (214 pounds)
  • Wall or floor mountable, indoor or outdoor.
  • Liquid Cooling (liquid thermal control)
  • 92.5% round-trip DC efficiency (at optimal conditions – 25 degrees celcius (77 Fahrenheit) with 2kW charge/discharge power)
  • 100% Depth of Discharge

Tesla Powerwall 2 Specs

  • 1150mm long, 755mm wide, 155mm diameter. (45″ x 30″ x 6″)
  • 14kWh battery (13.5kWh ‘Usable Capacity’)
  • 7kW peak power, 5kW continuous power.
  • Wall or floor mountable, indoor or outdoor.
  • Tesla Powerwall 2 Specifications and Cost
    Tesla Powerwall 2 Specifications and Cost
  • 10 year manufacturer’s warranty
  • Scalable (up to 10 AC-coupled Powerwall 2’s)
  • Integrated Inverter (converts the DC energy into AC energy you need to use in your house)
  • Liquid Cooling
  • Control and view your energy usage/storage with the Tesla app (iOS and Android)
  • Weighs 119.9kg (264.4 pounds)
  • Degradation – it will hold around 70% of the 13.5kWh after 10 years.
  • >90% round trip efficiency.
  • Wi-Fi, Ethernet, 3G connectivity.
  • Off-grid support (AC Coupled)
  • Single Phase feed in.
  • 100% depth of discharge available.
  • Outside of the USA: Powerwall 2 doesn’t include inverter with the DC version and only works with a Solar Edge inverter.

Tesla Powerwall 3 Specs

This is all conjecture at this point, but we think some of the features the Tesla Powerwall 3 could include:

  • Heavily optimised for and integrated with Tesla Solar Roof (Aussies can preorder one now, will be available in 2018)
  • Heavily optimised and integrated with Tesla Electric Car (Model S, Model 3 etc.). 
  • Upgraded intelligent energy management – will learn your household’s usage, draw from weather forecasts etc. to ensure your house, battery, car or hot water stay at 100% and you are only feeding back into the grid when it’s optimal.
  • Inbuilt hybrid inverter (i.e. you can plug solar panels directly into it, eliminating the need for a separate inverter for your solar panels. The current inverter is just a battery inverter)
  • 28kWh battery (~26kWh usable capacity)
  • We predict they’ll stick with lithium-ion for the battery as its price is very affordable.
  • Alternatively, Tesla may stick with the 14kWh batteries, make them smaller and easier to install – 14kWh is sufficient power for many households – it depends on the cost/size of the batteries)
  • Single and three phase power compatible. 
  • DC version includes inbuilt inverter.
  • By 2018 Tesla expect their Gigafactory to manufacture 35 gigawatt-hours per year of battery cells. Almost as much as the current global combined battery production capacity. What will this mean for the Powerwall III?
  • What features do you think the Powerwall 3 will have? What would make it a ‘no-brainer’ for you to purchase?  Let us know in the comments.

Tesla Powerwall 3 Price

The cost of the Powerwall 1 and the Powerwall 2 was roughly the same, so we don’t expect the price of the Powerwall 3 to fluctuate more than around 20%. 

Powerwall 1 Price (Australian Installation): Around $10,000 (7kWh battery, installation and supporting hardware included).

Powerwall 2 Price (Australian Installation): Around $10,000 (14kWh battery, installation and supporting hardware included).

Powerwall 3 Price: ?

Powerwall Alternatives

If you’re not necessarily sold on the Powerwall 2 and don’t want to wait for the Powerwall 3, there are many Powerwall competitors and alternatives you can investigate, such as sonnenBYD B-Box Solar BatteryRedback Technologies, Fronius, Mercedes-Benz, and Eaton Nissan xStorage

Our Solar Battery Comparison area will help – if you have any questions or would like some guidance please email us or simply ask in the questions below! While the Powerwall is certainly an amazing product, depending on your personal circumstances you can get a better result by using one of its competitors. The sonnenBatterie, for example, is onto its 8th iteration and powers 75% of German energy storage – it has a modular capacity from 2-16kWh and, amongst others, is definitely worth a look. 

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