Format: 74.0in × 41.1in × 1.26in (including frame) (1879mm × 1045mm × 32mm)
Weight: 48.5lbs (22.0kg)
Front Cover: 0.13in (3.2mm) thermally pre-stressed glass with anti-reflection technology
Back Cover: Composite film
Frame: Black anodized aluminum
Cell: 6 × 22 monocrystalline Q.ANTUM solar half cells
Junction Box: 2.09-3.98in × 1.26-2.36in × 0.59-0.71in (53-101mm × 32-60mm × 15-18mm), IP67, with bypass diodes
Cable: 2.09-3.98in × 1.26-2.36in × 0.59-0.71in (53-101mm × 32-60mm × 15-18mm), IP67, with bypass diodes
Connector: Stäubli MC4; IP68
Enphase IQ8 Microinterter – new technology – with this inverter, solar customers can be independent of the grid, even without a battery back-up
The IQ8 with Sunlight Backup is a highly intelligent solar power inverter that can form a microgrid during a power outage using only sunlight. During an outage, the IQ8 will temporarily disconnect your solar panel system from the electric grid and continue to operate in off-grid mode, allowing you to generate and use solar power while the grid is down. Until now, this kind of off-grid operation was only possible with a solar battery system.
Provide backup power during an outage with or without a solar battery
Switch seamlessly between on-grid and off-grid modes
Control each solar panel independently for maximum power generation
Convert DC power to usable AC power in a highly efficient manner
The Enphase Energy System is modular and can be grown over time. The IQ8 technology allows you to start with a small amount of backup power capability and add more in the future. This makes solar energy storage a more affordable and accessible option for homeowners.
Tesla Powerwall 3 Specifications and Features
Dimensions: 1302mm long, 862mm wide, 183cm diameter (51.3″ x 34″ x 7.2″)
Battery 7kWh battery (6.4kWh ‘Usable Capacity’)
Power7kW peak power, 5kW continuous power.
Scalability up to 10 PowerwallsWeight97kg (214 pounds)
CoolingLiquid Cooling (liquid thermal control)
Efficiency92.5% round-trip DC efficiency (at optimal conditions – 25 degrees celcius (77 Fahrenheit) with 2kW charge/discharge power)
Wall or floor mountable, indoor or outdoor.
100% Depth of Discharge
Dimensions: 1150mm long, 755mm wide, 155mm diameter. (45″ x 30″ x 6″)
Battery14kWh battery (13.5kWh ‘Usable Capacity’)
Power 7kW peak power, 5kW continuous power.
Scalability up to 10 AC-coupled Powerwall
Weighs 119.9kg (264.4 pounds)
Cooling Liquid Cooling Efficiency>90% round trip efficiency.
Wall or floor mountable, indoor or outdoor.
10 year manufacturer’s warranty
Integrated Inverter (converts the DC energy into AC energy you need to use in your house)
Control and view your energy usage/storage with the Tesla app (iOS and Android)
Degradation – it will hold around 70% of the 13.5kWh after 10 years.
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.
This is all conjecture at this point, but we think some of the features the Tesla Powerwall 3 could include:
Heavily optimized for and integrated with Tesla Solar Roof (Aussies can preorder one now, will be available in 2018)
Heavily optimized 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 2019 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.
How does a Tesla Powerwall battery work?
In basic terms, sunlight is captured by your solar panels then converted into energy that you can use for your home. As that energy flows into your house, it is used by your appliances and any excess energy is stored in the Powerwall. Once the Powerwall is fully charged, additional electricity your system generates on top of that is sent back to the grid. When the sun goes down and your solar panels are not producing energy, your Powerwall will provide electricity to power your home.
What can you power with a Tesla Powerwall?
In very general terms, one Powerwall should be able to cover your emergency circuits, lights, and outlets. If you are looking to power larger appliances 2-3 Powerwalls is a good start.
Ultimately, to determine what’s best for your home, we need to look at your average energy usage and discuss what you’re looking to get out of your battery storage system.
Schedule a free home energy assessment ➞
It’s all about the give and take when planning your home battery storage solution. When designing your energy storage system, it is essential to find a balance between the total capacity of the Powerwall(s) with the demand of everything you need to power up.
Each Powerwall can deliver up to 21 amps, and up to 6 Powerwalls can be stacked together. However, even if there is enough amperage to cover all of your loads, we need to consider how quickly electricity will be drawn to maximize the effectiveness of your back-up system.
A common misconception is that your solar output will recharge your battery at the same rate you use. This depends greatly on uncontrollable factors like weather and user consumption habits. An easy way to look at battery storage is to consider how driving tendencies vary by operator and vehicle. You may be a more efficient driver of your new Prius while your cousin Karen drives a 2001 Jeep Wrangler like she’s running a desert race.
Similarly, Powerwall performance will depend on user consumption tendencies and what you are powering up. Efficiency is key. The stored energy will go further in powering a smaller, highly efficient home with energy-efficient appliances versus a larger, older home with leaky windows and heirloom electronics. By monitoring your usage and storage abilities, you’ll gain greater insight into what you can power (and for how long) and how quickly your Powerwall might recharge in certain conditions.
