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Tesla PowerWall Solar Battery Review

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  • A sleek American design from a reputable company
  • Long lasting high performing batteries
  • An expensive “all-in-one” premium battery

Tesla Powerwall 2 Australian Review | Is the Tesla Solar Battery worth the cost? 

In short, yes. The Tesla Powerwall 2 is a high capacity solar battery that can keep your home powered with clean energy – even during a blackout! While the cost of the battery is high compared to its competitors, your money will go a lot further with this premium “all in one” Battery and Inverter solution. The second generation Powerwall’s inverter compatibility has been given a huge upgrade with the inclusion of an inbuilt inverter. Instead of connecting to your solar panels or inverter, the Powerwall 2 integrates into your solar system via your switchboard. This independence from your solar system makes the Tesla battery more compatible and easier to install. The Tesla battery price include this inbuilt feature. 

Customers have the potential to save thousands of dollars in expensive system upgrades and installation costs. Nonetheless, the Tesla Battery price in Australia will still leave some customers uncomfortable. However, from our extensive Tesla Powerwall 2 Australian review, we can recommend this battery when performance is the most important consideration and price is not an obstacle.

Tesla batteries have been widely installed throughout Australia and are well suited to Australian conditions. If you are looking for a high performing battery and are happy with a premium price tag, then look no further than the Tesla battery.

About the company

Tesla was founded in 2003 by a group of engineers dedicated to creating electric cars that could rival the power, speed and design of their petrol counterparts. This goal led to the company creating a range of electric vehicles that have captured the imagination of the world. No longer are electric vehicles seen as an inferior alternative. From the pursuit of a powerful fleet of electric cars, Tesla have created new, more powerful and efficient means of capturing, storing and dispensing renewable energy. Tesla believes the faster the world stops relying on fossil fuels and moves towards a zero-emission future, the better.

Building off the back of their successful vehicle innovation, Tesla adopted the goal of creating an entire sustainable energy ecosystem. The resulting energy products, the Powerwall, Powerpack and Solar roof, are some of the most powerful solar products on the market today. While Tesla is famous for their innovative technology, modern design and hefty price tags, the company has been working towards creating accessible renewable energy solutions. As such, the price of solar technology has been falling every year, while the power and efficiency of their products has been making consistent leaps forward. 

    • Tesla started development of the Powerwall in 2012
    • 45,000 employees (2018)
    • They also make electric cars

What is the Powerwall 2?

The Tesla Powerwall 2 is a solar battery that can store solar energy from your solar panels and use it to power your home. By integrating with your home solar system, the Powerwall 2 stores excess energy throughout the day that you can access when you need it. This stored solar power allows users to power their home, independent from the grid. This independence reduces your electricity costs, your environmental impact and safeguards against blackouts.

The Tesla Powerwall 2 does not generate or create energy. Instead, it works with the solar panels on your home to capture the excess energy that would otherwise be lost. For those who spend a lot of their time outside of the home, the Powerwall system is the perfect way of ensuring that your solar energy gains are not wasted. Capturing and monitoring energy is the key benefit of the powerwall system. This provides users with an interface to view their energy levels and consumption in real time on their personal profile on the Tesla App. This solar battery system is ideal for anyone looking to save on their electricity bills, minimise their dependence on the grid and retain the solar energy that goes unused throughout the day. 

How Powerful is the Powerwall? 

The Powerwall’s sleek and compact design holds a powerful, rechargeable lithium-ion battery pack. This battery stores solar energy for self-consumption, backup power, load shifting and off-grid energy. Don’t let the slender size of this battery fool you, its fully-integrated AC battery system is suitable for both residential and commercial use. On a typical day the Tesla Powerwall will store enough energy to completely power a four-bedroom home. Furthermore, the Powerwall system can detect power-outages, disconnect from the grid and restore power to your home in seconds. The Tesla solar battery can then continue to power itself and your home off the grid for up to a week. 

How can monitoring your energy save you money?

Not only does the Powerwall store and release solar energy as needed for your home, but it monitors and controls your energy supply and usage in real time. As the Tesla system learns your home energy consumption habits, it adapts its charging and dispensing to best suit your needs. The inbuilt sensors that monitor your energy use and needs are then displayed on your Tesla app, allowing you to monitor, manage and customise your energy usage. This ability to remotely control and monitor your home energy needs puts the power in your hands, allowing you to tap into your stored solar energy when electricity is at its most expensive – reducing your reliance on the grid and your utility bills. 

Where can you put it?

The Powerwall 2 is suitable for both indoor and outdoor installation. The battery can be mounted to a wall or the floor. The Powerall is both water resistant and dustproof, meaning it will happily sit almost anywhere on your property – even in that dusty, leaking shed of yours! With an operating temperature range between -20°C and 50°C, the Powerwall is suitable for most conditions on earth. Though maybe you shouldn’t go hiking with it, as its 3,000m altitude limit could be problematic!

Tesla are famous for their stylish, modern design across their broad range of electronic innovations. The Tesla Powerwall 2 is no exception. With its slim frame and stylish design, the Tesla Powerwall can be a modern feature for your home. Tuck it away out of sight, or display your clean energy independence proudly – either way the battery pack is a welcome addition to any home. 

Product Specifications

While Tesla’s second generation Powerwall may appear to compromise power for size, you couldn’t be further from the truth. Despite the small frame (1150mm x 755mm x 155mm), the battery system weighs around 125kg, making it a surprisingly heavy product. This impressive weight does, indeed, result in more power for the system, with Tesla boasting that it “achieves market-leading energy density.” In terms of performance specifications, the internal battery operates on an AC voltage of 230V, it’s feed-in type is single phase, its grid frequency is 50Hz and its round trip efficiency is 90%. Tesla offers a 10-year warranty with all of their Powerwalls. 

Why should I choose a Tesla battery?

Panel Typeperformance Performancecompatibility Compatibilityvalue ValueVPP ReadyVPP Readysize Size
Powerwall 2warrantyIntegratedwarrantyTesla offerFixed

Is the Powerwall Suited for Australian Conditions?

The Tesla Powerwall 2 has been approved by the Clean Energy Council. Widely sold in Australia, Tesla provides market-leading batteries. The Tesla batteries are perfectly designed for the extreme weather experienced in Australia. Even so it is usually recommended that solar batteries are kept away from direct sun. Tesla batteries have a wide range of operating temperatures.

What are the Tesla Powerwall Compatible Inverters? 

The Tesla Powerwall inverter compatibility is a key feature of this battery. The second generation Powerwall is compatible with all existing solar systems. While some batteries are only compatible with a very limited range of inverters, others are compatible with many different inverters. Tesla Powerwall 2 includes its own inbuilt inverter, making it easier to install. As the battery connects directly with your switchboard, the Powerwall 2 does not need to connect to existing solar panels or inverters. This inbuilt feature provides great financial incentives for customers. Without the need to purchase an expensive hybrid solar inverter, owners of the Powerwall 2 are able to cut the costs of a system upgrade that cost thousands of dollars.

Is the Tesla Powerwall Affordable?

Solar Batteries, or ESS (Energy Storage Systems) as they are known, are something that every solar system owner should consider. However, for many the higher prices will be a barrier, as even the most affordable Solar batteries cost as much as the rest of the solar system combined. Tesla prices are more expensive than most other leading Solar Battery Providers. We recommend that people considering the investment into a Tesla Battery do a thorough examination of their own energy consumption and usage habits over the last 10 years. This information will help to calculate the amount of time for the Powerwall to provide a return on the investment through the savings in your energy bill. Our team are happy to help you with this assessment and calculation.

Is the Powerwall a VPP (Virtual Power Plant) ready battery?

Tesla batteries are a great choice if you are considering signing up to a VPP (Virtual Power Plant). A VPP, for those not familiar with the term, allows many solar systems to act together as a power plant. Collectively a VPP can then store power when it is cheap and sell it when the price is higher more effectively than a single solar system owner. VPPs are not yet common but being “VPP ready” is a must to claim the South Australian Battery Rebate.

Tesla is in the process of offering their own VPP program.

How Does the Tesla Battery Measure Up?

Energy Saving Systems (ESS)/Solar batteries come in different sizes and shapes. They also come in different setups; some batteries have variable capacity while others have a fixed capacity. The Tesla battery comes in a relatively small package. While they come as a fixed size, they can be combined together to create a bigger battery. The small design of the Tesla Battery makes it easy to fit into the aesthetic of your house. Despite the small size, the Tesla Battery is one of the most powerful products on the market.

Does the Tesla Battery Work During a Black Out? 

Yes. What many people don’t know is that many solar systems will not work unless connected to the grid. This means that power will fail during a blackout. Luckily, Tesla provides a module that allows you to use some of your solar generation during a black out. The switch, known as ‘The Tesla Gateway’ can allow users to disconnect from the grid during a blackout. While the switch is not uninterrupted, it does provide a great solution during periods of grid outage. Whether you’re at home or away during a blackout, you can easily monitor your Powerwall via the Tesla app. This allows you to switch from the grid to your reserve of solar energy even on the go. 

The Verdict

A great battery that is well-worth the premium price.

The Tesla Powerwall 2 is a complete home battery solution. The Tesla Powerwall inverter compatibility is enhanced by the inclusion of the inbuilt inverter. This ‘all in one’ nature saves customers from expensive upgrades while providing them with a product that can work with their current system and is easy to install.

Despite the high quality, impressive power and beautiful design of this Tesla solar battery, the price tag remains a key limiting factor. When considering a Tesla Powerwall 2 battery for your home, it is important to also consider the potential financial savings. Through a reduced reliance on the grid for power your energy bills will dramatically fall. For those less concerned with the financial barrier, the Powerwall 2 is a terrific investment that is likely to pay off in the not-too-distant future.

As a Clean Energy Council Approved product, the Tesla Battery is also VPP-ready. This means that customers in South Australia are able to claim a Government Rebate on their purchase. Furthermore, the VPP potential means that owners of the Powerwall 2 will have further opportunities to save money by signing up to a Virtual Power Plant. Tesla are even working on their own VPP system.

Tesla Powerwall Images

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