Tesla powerwall battery reviews

Based on 133 ratings Aus Ranking

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  • 3 star 1
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About Tesla, Solar Batteries

Tesla solar batteries review

Tesla, Inc. was founded in 2003, originally as Tesla Motors. Tesla is headquartered in the USA's San Francisco Bay Area, with office locations around the world (including Australia).

After cutting its teeth on electric vehicle development, Tesla then expanded into commercial and home battery storage. The company arrived on the home energy storage scene accompanied by great fanfare with the Tesla Powerwall battery back in 2015, which was followed by the Powerwall 2 in 2016.

Tesla has grown into a huge company in terms of market capitalisation - a whopping USD $143.6 *billion* as at late January 2020. 

Anyway, back to batteries - the following are some basic specifications of the Powerwall 2:

  • Usable Capacity: 13.5 kWh
  • Power: 7kW peak / 5kW continuous
  • Dimensions: 1150 mm L x 753 mm W x 147 mm D
  • Weight: 114 kg
  • Warranty 10 years

The Powerwall is produced in the Tesla Gigafactory in Nevada USA, which also manufactures Tesla Model 3 electric motoers and the company's commercial/utility storage solution, the Powerpack.

Pricing And Supply

Supply of the Powerwall 2 was an issue for quite a while in Australia, and then there was a major price rise in 2018 - followed by a not so major price decrease in 2019. So, Australians have had it a little rough with the Powerwall, but its high profile through extensive media attention have seen plenty installed here and interest remains strong.

The cost of Powerwall 2 per warranted kilowatt hour (see below for notes on warranty) is around 31 cents - not the cheapest, but far from the most expensive of the systems we have listed on our battery comparison table.

Blackout Capabilities

The Tesla Powerwall 2 is an AC Coupled battery that comes with the necessary hardware (Tesla Gateway) to provide blackout protection, backup and off grid functions.

Powerwall's "Unlimited Cycles" Warranty

Tesla offers a 10 year "unlimited cycles" warranty, but this only applies to solar self-consumption and backup use. Any other application (such as participating in a Virtual Power Plant) or combination of applications sees the warranty cover drop to 3,200 cycles – about eight years’ worth if cycled once a day.

Reliability Testing Results

The Canberra Battery Test Centre has been putting the Powerwall 2 through reliability testing. The test battery arrived with a fault and later developed another that resulted in it being replaced.  Results published in September 2019 indicated capacity estimated at 96% after 640 full cycles.  If  maintained, the Powerwall 2 will stay well within the minimum capacity provided by its warranty.

While not perfect (and Tesla hasn't been overly fond of us pointing out issues), as far as home solar battery storage goes at this point in time the Tesla Powerwall 2 is probably a good choice among what is available.

Telsa is great at marketing, but how is the Powerwall viewed by those who have one installed? What about after sales service and support? We're inviting Australian Powerwall owners (whether they have the original or Powerwall 2 model) to leave their rating and review here.

Tesla Solar Battery Reviews

I know it’s early but we have not used any power from the grid since the system was turned on, 0kW.. zip! We’ve had some great sunny days, a couple of cloudy days but also a very dark overcast day and we still managed to get the battery back to 100%.
We’re a young family of 5, with three kids under 8 and it blows my mind how good the system is working for us.
Bought From: Solar Power Direct
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Bought From: SolarPro Show additional information
Bought From: Exceed Solar Show additional information
After having enphase batteries the Tesla is next level.
Bought From: Steve Torpy Electrical and Security and Coastal Solar Solutions
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Joined Amber Electric and using the battery and the EV, plus a 5kW A/C and a solar connected HWS, to juggle the best wholesale prices.
Bought From: Generate Energy
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Bought From: Kozco Energy Group Show additional information
great app with the Tesla battery
Bought From: NRG Solar - National Renewable Group
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Whilst the formal payback period for the battery is about 12 years, this will shorten considerably if feed-in tariff reduces significantly, as we expect it will. It is much more valuable to self-consume power than to export to the grid, both for us and for the grid. The more batteries that are installed, the more solar and wind can be added to the grid, and the transition to low-emissions energy can be accelerated. Working as fast as possible towards net-zero electricity is what we need to address the Climate Emergency.
Bought From: DQ Electrical Pty Ltd
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Bought From: Kozco Energy Group Show additional information
it looks good and its very compact.
Bought From: Solaworx
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Fantastic, even though its winter they haven't fallen below 50% overnight and only take a couple of hours to reach 95%
Bought From: I Want Energy
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Bought From: Cola Solar Show additional information
I'm extremely happy I purchased the Tesla Powerwall 2 battery storage. Was initially reluctant due to cost but it has been worth the extra money. Solar during the day, battery at night; what else can I say. I've been off-grid since it was turned on and recently took pride during during a blackout.
Bought From: Soltek Energy
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Out of the whole system - I've fallen in love with the Tesla battery - I love seeing it on the wall every time I reverse into the garage - not only does it now provide the majority of our energy needs outside of solar hours it just looks awesome on the wall. We're also really impressed with the Tesla app and the ability to monitor the system performance at any time.
Bought From: SOLARLAB Pty Ltd
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Bought From: NRG Solar - National Renewable Group Show additional information
Works extremely well. Carried us through a 6 hour power outage when poles were replaced. Very good software to monitor the system. Does everything we had hoped for. When prices drop in the future we would look to putting another one on but already we are supplying about 80% of our power through the panels and battery as well as exporting electricity even on cloudy days.
Bought From: Now Solar Pty Ltd
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It's a joy checking the app regularly because it shows you how much Soler is being used and how much is going into the battery and how much you're using from the grid.
Bought From: Lightning Solar & Electrical - Melbourne
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Great overall benefits associated with using Tesla. It. Barges from AC so it doesn’t need a hybrid inverter. This opens up your options for inverter and generation size. You automatically qualify to join energy Locals for very cheap electricity rates. You receive a generous rebate on the cost of the battery and you can monitor the performance of the entire installation via their app. The battery is adequate to run the house overnight if you have modest evening consumption but larger families should consider 2 batteries as 13.5kwh doesn’t goe a long way if you wanted to run heaters or A/C all night.
Bought From: DQ Electrical Pty Ltd
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Bought From: I Want Energy Show additional information
This is our second installation by Solaworx. This battery fits in well with our two individual solar panel systems. We have a 3kw single (ena) inverter system; and a 3kw individual panels (enphase) inverters system. The latter installed by Solaworx.two years ago. The Tesla battery has an online monitoring app which collates the data from our overall system and it is efficient and impressive. We are very pleased with the total package.
Bought From: Solaworx
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No. Just perfect
Bought From: Sunrun Solar
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Bought From: NRG Solar - National Renewable Group Show additional information
Worked well so far. Very classy appearance.
Bought From: Class A Energy Solutions
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Bought From: The Energy Experts Show additional information
Bought From: Adelaide SolarSafe Show additional information
Bought From: Goliath Solar and Electrical Show additional information
Bought From: East Gippsland Solar Show additional information
Bought From: Kozco Energy Group Show additional information
Tesla mounted on wall looks great even has a cool green light at night. Tesla app is amazing and I am switching my ceiling heaters on and seeing how much electricity they use and keeping them off. Can see exactly how much power is being used by each appliance by switching it on and off .
Bought From: SOLARLAB Pty Ltd
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From other reviews seems to be one of the top three
Bought From: Kozco Energy Group
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Battery is now fully charged at the end of the day unless it is extremely overcast.
Bought From: True North Solar
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Impressed doesn't fully explain how pleased we are we had the battery installed.
Bought From: Perth Solar Warehouse
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Very happy , able to switch power from battery power to home , unbelievable

Excellent finish , slimline
Bought From: Kozco Energy Group
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I would like the ability to export the Tesla battery when I want which is not available. Nothing to do with the installer.

Also there is no ability to set the custom price framework to suit more than one peak price period such as when you are using wholesale prices like anmberelectric.

Ideally it should be able to receive the 5 minute tariff adjustments from the wholesaler of choice. But if it can't do that it should have a manual mode that can be set by a local machine operator as to what the owner wants it to do ie export, or charge.
Bought From: Perfect Solar Power
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Helped to zero our grid consumption 10 months in a year, we are at ~12kw per day with 5.4kw of solar panels.
Bought From: Sharpe Group Pty Ltd
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Still early but great system, love the simplicity and the ability to be a power supply in power outage
Bought From: Solar City NT
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If the battery is charged during the day then most evenings it will last for normal use and overnight heating of hot water. We installed the battery to optimise a 10kw solar system but as importantly continuity of service – we have 6 to 10 outages a year due to our remote location and trees bringing powerlines down.

The Tesla battery app is easy to use and program and provides up to date information. The ‘storm watch’ function is good for ensuring that we have enough back up power.

It is an elegant looking battery, we have it installed in a machinery shed so it is out of the way, no significant noise, just a fan from time to time, It has coped with outages and transferred to standalone operation flawlessly and without interruption.

I would recommend this battery, especially where people have a higher risk of power outages.


Bought From: G Store Macedon
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The TESLA battery component allows system to keep delivering when sun light disappears.
Bought From: Venergy SA Metro
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Bought From: DQ Electrical Pty Ltd Show additional information
Bought From: G Store Show additional information
Bought From: Lightning Solar & Electrical - Melbourne Show additional information
It’s smart.
Bought From: Natural Solar
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The Tesla battery is a design piece. Well constructed and the Tesla app is easy to use and it allows you to monitor your power use with ease.
Bought From: Venergy SA Metro
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Bought From: Natural Solar Show additional information
Having the app to see in real time what the system generates, what is being used or where the power is going is so useful. Seeing when we need the grid or not is good too.
Bought From: Solaworx
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Bought From: SOLARLAB Pty Ltd Show additional information
Slim and compact looks great against the wall
Bought From: DQ Electrical Pty Ltd
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This is the new upgraded model 2 battery - simply amazing - looks cool too, check out that green LED stripe that pulsates as it charges and discharges..
Bought From: Goliath Solar and Electrical
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Bought From: Lightning Solar & Electrical - Melbourne Show additional information
Bought From: All Brisbane Electrical Show additional information
Bought From: Replenishable Energy Pty Ltd Show additional information
Bought From: Goliath Solar and Electrical Show additional information
Fantastic user interface and top quality construction.
A beautiful unit overall
Bought From: Natural Solar
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Bought From: Venergy SA Metro Show additional information
Bought From: Venergy SA Metro Show additional information
Bought From: All Green Environmental Solutions Sydney Show additional information
Bought From: Soltek Energy Show additional information
Bought From: DQ Electrical Pty Ltd Show additional information
Bought From: Kozco Energy Group Show additional information
Bought From: Kozco Energy Group Show additional information
Tesla App is great.
Bought From: Kozco Energy Group
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I haven't had to take from the grid as yet
Bought From: NRG Solar - National Renewable Group
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Bought From: Banana Solar Sydney Show additional information
Bought From: Kozco Energy Group Show additional information
it is brilliant so far!
Bought From: Sunwise Energy
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Bought From: Kozco Energy Group Show additional information
The best battery in the market. Keeps me on top of the solar production and no need for any other app. One ap to monitor my car and the battery. Just Brilliant!
Bought From: Penrith Solar Centre
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Tesla in the garage. That's cool.
Bought From: Solar4Life
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It's a Tesla - what more can I say? The transition from using solar / grid / battery power is seamless. It provides us with all of our night time use and there is plenty left over for morning household use before the sunlight takes affect. Have not had the need to draw any electricity from the grid since the battery was fully charged the day after installation.
And, it looks great under the carport!
Bought From: DQ Electrical Pty Ltd
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Bought From: Adelaide SolarSafe Show additional information
Bought From: EnergySA Show additional information
Best battery for outdoor use, and best temperature rating. We have blackout protection. Battery is big enough to last us several days without charging. With Simply Energy VPP we will save another $5,000 of the install price.
Bought From: Adelaide SolarSafe
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Good looking most important be if it is designed for outside .Some other makes need a cabinet .
Bought From: Solaworx
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We have had our battery for less than a day, but so far so good. It is quiet and looks great. The App is extremely user friendly and has everything we need to know.
Bought From: Natural Solar
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Far exceeds expectations.

App is excellent

Reassuring that the actual battery is made by Panasonic, and Tesla provides the smarts.
Bought From: Soltek Energy
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Bought From: Penrith Solar Centre Show additional information
Bought From: Penrith Solar Centre Show additional information
Bought From: G Store Show additional information
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Bought From: Penrith Solar Centre Show additional information
Bought From: Adelaide SolarSafe Show additional information
Bought From: Solaworx Show additional information
Bought From: Solar Power Direct Show additional information
Bought From: Replenishable Energy Pty Ltd Show additional information
Bought From: Class A Energy Solutions Show additional information
Monitoring application is so Cool.
Bought From: Venergy SA Metro
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Bought From: Class A Energy Solutions Show additional information
Bought From: Banana Solar Sydney Show additional information
What a great looking product.
Bought From: Venergy SA Metro
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Bought From: Natural Solar Show additional information
Extremely slim, weather proof and is working well. We can monitor its performance on thee Tesla App.
Bought From: Class A Energy Solutions
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Bought From: Class A Energy Solutions Show additional information
Bought From: Kozco Energy Group Show additional information
Bought From: Dan the Solar Man Angle Vale Show additional information
A magic piece of work!
Bought From: Dan the Solar Man Angle Vale
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Easily installed an Not in the way..
Bought From: Dan the Solar Man Angle Vale
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I wish I had two connected , I could use more air conditioners in my house of a night on 40c days.
Bought From: Dan the Solar Man Angle Vale
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Bought From: NRG Solar - National Renewable Group Show additional information
Bought From: Allstar Solar Show additional information
Battery works very well, love the app you can monitor how it is working.
Bought From: Sunbank Solar
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Bought From: Kozco Energy Group Show additional information
Bought From: Natural Solar Show additional information
The system hasn't missed a beat since being commissioned. We have not used power from the grid (apart from the 0.1Kwh daily use identified in the Tesla app - still need to investigate this apparent standing connection charge/amount) since the system was switched on. Now waiting for our first complete battery/solar quarterly electricity bill to identify savings and exact usage/feed-in from our supplier.
Bought From: Kozco Energy Group
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The Tesla battery has performed really well, I now just need to add additional PV panels. We only have 3.2 kW and need more for winter.
Bought From: Solaray Energy Pty Ltd
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After our own month-old analysis into the nature of our usage, it was the best decision we made due to the nature of our usage being split equally over solar hours versus non productive productive solar hours.

All suppliers recommended smaller installations minus battery backup to secure their sale. This would have made our pay back recovery period longer and lead to our questioning the success of the installation. We are mostly 100% covered on daily usage except when obviously bad weather changes our solar production. This includes the use of aircon and heating by day..
Bought From: Solaray Energy Pty Ltd
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Bought From: Kozco Energy Group Show additional information
Bought From: Kozco Energy Group Show additional information
Bought From: G Store Show additional information
It does the job - only 2 weeks in, so hard to say more than good...
Bought From: All Green Environmental Solutions
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Bought From: Kozco Energy Group Show additional information
Bought From: Bradford Solar Adelaide Show additional information
Bought From: Solaworx Show additional information
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Bought From: Kozco Energy Group Show additional information
Bought From: Kozco Energy Group Show additional information
The tipping point arrived with combined rebates and discounts, so just had the battery installed this week, after assessing its relative merits for about 12 months.
Early days of course, but for our usage I believe the payback and peace of mind will be worth it. Day 1, 36 degrees, battery fully charged before midday, 98% self-sufficiency 20+kWh to the grid, ran the air-conditioning after dark for a couple of hours, happy days.

Day 2 19 degrees, cloudy raining, windy. battery fully charged just after midday, still 98% self sufficiency 7kWh to the the grid.

The litmus test will be how things go next winter.
Bought From: Kozco Energy Group
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Bought From: Helioenergy Show additional information
Bought From: Essential Energy Solutions Pty Ltd Show additional information
Bought From: Soltek Energy Show additional information
Bought From: Allstate Solar Show additional information
Bought From: Kozco Energy Group Show additional information
Performs well under load. Charges quickly.
Bought From: EcoSmart Energy Group
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Bought From: Rainbow Power Company Show additional information
Bought From: SAE Group Pottsville - Tweed Show additional information
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Bought From: Keen 2B Green Pty Ltd Show additional information
Bought From: Natural Solar Show additional information
Just installed
Bought From: SAE Group QLD
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Bought From: Kozco Energy Group Show additional information
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