Tesla Powerwall 2: The Ultimate 2024 Buyer's Guide

Tesla Powerwall 2: The Ultimate 2024 Buyer's Guide

Have you heard of Tesla? Silly us, who haven't! Tesla Motors, an iconic automobile manufacturer known worldwide for its production of unique, futuristic, and environmentally sustainable cars and cyber trucks, has been praised for its proven ability to make leaps and bounds in research and development of new emerging and sustainable technologies such as energy storage.

In today's definitive guide, we'll discuss in-depth about Tesla Powerwall 2, a revolutionary energy storage system poised to revolutionise the way the residents of Canberra, ACT, power their homes, harnessing the sun's boundless energy to liberate themselves from the grid's grip and finally become energy independent.

What is the Tesla Powerwall 2?

With energy prices soaring and extreme weather causing frequent power outages, homeowners in Canberra, ACT, are considering pairing solar with home battery backup, and the Tesla Powerwall 2 serves the purpose well.

Launched in 2016, Tesla Powerwall 2 is an improved and upgraded version of its predecessor. The earlier version of Tesla Powerwall capacity had low battery capacity, couldn't perform optimally on a range of temperatures, and had fewer features.

tesla powerwall2

Tesla Powerwall 2 is a fully integrated AC battery system for residential or light commercial usage that stores solar energy for backup protection when the grid goes down. Its rechargeable lithium-ion battery pack provides energy storage for solar self-consumption, time-based control, and backup.

In general, solar panels generates more energy than what a residential or a light commercial property can utilise. The Tesla Powerwall 2 stores the excess of energy generated and make it available on demand, maximising the usage of solar and reducing the reliance on the grid so that when the sun isn't shining, i.e., overnight or on days with poor weather and solar irradiance, you still have access to your power necessities.

Also Read: Solar Battery: What Size Solar Battery Do I Need?

How Does Tesla Powerwall 2 Work?

The Tesla Powerwall 2 stands at the forefront of revolutionizing Australia's solar landscape, operating as a key component in home energy systems. But how does it work?

At its core, Tesla Powerwall 2 is a lithium-ion energy storage system designed to store the surplus of energy generated by solar panels throughout the day and use it later to provide key security and financial benefits to residential and commercial owners.

Tesla powerwall 2

The Tesla Powerwall 2 is equipped with energy monitoring, metering, and smart controls for owner customisation using the Tesla app. The Tesla Powerwall system also includes at least one Powerwall and a Backup Gateway. One can monitor, meter, and manage your system through this gateway.

The reason Tesla Powerwall 2 outperforms and outlasts other battery storage systems is not just limited to the cost of Tesla Powerwall 2, but also other factors, including its ability to work with and without solar panels.

Tesla Powerwall 2 When Equipped with Solar Panel

When the sun comes out, the solar panels absorb solar energy and turn it into usable power. When additional power is required at the residential or commercial property, the energy can be utilised from the utility grid.

Tesla Powerwall 2 efficiently stores the excess energy during the day, when solar panels are producing more electricity than the residential or commercial property can utilise.

Integrated with advanced monitoring software, the Powerwall 2 intelligently manages energy flow, allowing homeowners to maximise their self-consumption of solar power.

During periods of high energy demand or when the grid faces outages, the Powerwall 2 seamlessly switches to provide electricity, ensuring a reliable power source for your home.

However, if your panels aren't producing enough energy for deployment during peak demand, you've to pull energy from the grid.

Tesla Powerwall 2 When Equipped without Solar

But what if I don't have solar panels installed in my home? Will Tesla Powerwall 2 still work? Absolutely!

The Tesla Powerwall 2 keeps monitoring the electricity rates as they tend to vary throughout the day (you read that right, they keep on changing)! So, when the electricity rates drop, the energy storage system springs into action and charges the system, stopping charging when the rate fluctuates.

Tesla powerwall 2 with solar panel

When the electricity cost rises or if there is a power outage, the Tesla Powerwall 2 can automatically provide backup power, thus becoming the residential or commercial property's main power source instead of the grid.

Also read: Top Reasons to Use Solar Battery Storage

Why Should I Buy Tesla Powerwall 2?

The Tesla Powerwall 2 is one of the best solar battery storage systems on the market. Be it Tesla Powerwall capacity, depth of discharge, scalability, or Tesla Powerwall 2 price, it outperforms other batteries. So, is it the best solar battery storage system out there? Let's find out!

Operational Temperature - Power derating is a common thing in most lithium-ion batteries, but Tesla Powerwall 2's thermal management system enables the solar battery storage unit to operate in a wide range of temperatures from -20°C to +50°C. This helps the system to have a longer life span and better performance at extreme temperatures.

Backup Gateway - Backup Gateway 2 functions as the Tesla Powerwall 2's energy management system and communication hub. Not just that, it also provides advanced monitoring and time-based control options, which means if there's a power outage, Backup Gateway 2 can isolate the backup circuits from the electricity grid and enable the system to function in off-grid mode.

Energy Independence - Tesla Powerwall 2 gives the ability to store surplus solar energy. This utilisation of the stored power offers autonomy, reducing reliance on the grid and external factors for electricity supply. This translates to reduced reliance on the grid, greater self-reliance, and potentially lower electricity bills.

Cost Savings - By optimising the utilisation of solar energy, the Tesla Powerwall 2 minimises reliance on electricity from the grid during high-rate periods. It leads to significant cost savings on energy bills over time, making it a smart long-term investment.

Environmental Impact - Choosing Tesla Powerwall 2 contributes to a greener environment. Its ability to store renewable solar energy reduces reliance on non-renewable energy sources, subsequently lowering carbon emissions and promoting sustainable living.

tesla powerwall 2 power

Reliable Performance - Known for their cutting-edge technology, Tesla Powerwall 2 is no exception. With a sleek design, high-quality materials, and a comprehensive warranty, the Tesla Powerwall 2 is built to last and provide you with years of reliable service.

Smart Energy Management - Equipped with smart monitoring, metering, and controls, Tesla Powerwall 2 optimises energy usage. This allows one to track their solar production, consumption, and storage, helping them optimise their system's performance and maximise their savings.

Increased Home Value - Studies show that homes equipped with solar energy systems and battery storage systems like the Tesla Powerwall 2 command higher market value, making them a worthwhile investment for homeowners in Canberra, ACT.

Tesla Powerwall 2 Specification 




Rechargeable lithium-ion battery with liquid thermal control

AC Voltage

230 V

Feed-In Type

Single Phase

Grid Frequency

50 Hz

Total Energy

14 kWh

Usable Energy

13.5 kWh

Real Power, max continuous

5 kW (charge and discharge)

Apparent Power, max continuous

5 kVA (charge and discharge)

Max Supply Fault Current

10 kA

Maximum Output Fault Current

32 A

Power Factor Output Range

+/- 1.0 adjustable

Internal Battery DC Voltage

50 V

Depth of Discharge


Round Trip Efficiency



10 years

Dimensions (L x W x D)

44” x 29” x 5.5” / 1150 mm x 753 mm x 147 mm

Operating Temperature

-20°C to 50°C / -4°F to 122°F


Requires installation by a trained electrician


114 kg / 264.4 lbs

Mounting Options

Floor or wall mount


Nationally accredited certifications to safety electrical and environmental legislation. UL and IEC certified. Grid code compliant.


Up to 9 Powerwalls



As we draw curtains to today's definitive guide on Tesla Powerwall 2, we hope we have illuminated your path with guidance towards a cleaner and an energy-independent tomorrow!

Remember, Tesla Powerwall 2 is an impressive piece of engineering, and there's no surprise it's one of the most popular and value-for-money AC battery systems on the market. The great capabilities it offers at a compelling price point outperform other AC battery systems, especially in extreme climates.

Tesla Powerwall 2

From its exceptional efficiency to reliable backup power, it's redefining how residents of Canberra are harnessing solar energy. So, embrace this opportunity to break free from the constraints of traditional energy sources and join the long list of residents from Canberra, ACT, who are already reaping the benefits of Tesla Powerwall 2.

Install Tesla Powerwall 2, empower your home, and take control of your energy destiny. Let the Tesla Powerwall 2 guide you towards a brighter, more sustainable tomorrow.

Want to reduce your monthly utility bill while being energy independent? Is it possible? Only if you partner with Kratos Energy, the leading CEC-accredited provider of solar battery Canberra. Residents and local businesses from across Canberra, ACT, have availed of solar products and services, including solar panel installation, solar battery storage, among others, and have become self-sufficient. Contact us today and find your doorway to a sun-powered future for your home!

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