Tesla Powerwall Lifespan: How Long Do They Last?
Tesla Powerwall is a home battery that stores energy collected from solar panels or the grid. It can provide power to your home during outages, and it can also help you save money on your electricity bill. But how long will Tesla’s Powerwall last? In this article, we will explore Tesla’s Powerwall lifespan and find out how long you can expect your Tesla battery to last.
What is the lifespan of a Tesla Powerwall solar battery?
On paper the average lifespan of a Tesla Powerwall is around 20 years. However, this number can vary depending on how often you use your battery and how much of it you use. If you take care of your Tesla Powerwall and don’t use it 100% daily then it could last up to 25+ years. But if you use its stored energy daily and don’t get a chance to fill it due to an undersized system the battery may not last as long as you expected…
What is the Tesla Powerwall warranty in Australia?
1st is the people who are grid connected and use solar power to charge it and grid energy in time of use controlled areas . The warranty on this product lasts ten years and has an infinite number of cycles if used in this manner.
Unlimited cycles appear to be fantastic, and it certainly isn’t terrible, but charging off solar only applies to people on-grid with time-of-use tariffs who can use low-cost off-peak grid electricity to charge their batteries.
2nd are People who are off-grid and will be able to charge the device using a generator. Because of these restrictions, because of Tesla’s strict guidelines few are likely to fall into the second warranty category.
The rare second option are where people who are off-grid , and need to be specially approved by tesla do so, will be able to charge the device using a generator.
Tesla allows a Tesla Powerwall 2 to be charged via other means than solar, such as approved Generators that can be controlled via the Gateway but the warranty could be limited to 10 years or 37.8MWh kWh of throughput energy, whichever occurs first.
This is if the system was designed poorly which led to you using 100% of the batteries capacity day in and day out then the warranty could end after seven years and eight months if the battery was cycled once a day and its capacity never decreased from when it was new. Unfortunately, even if they aren’t used, all lithium-ion batteries deteriorate with time and use.
The warranty states that Tesla Powerwall’s will have at least 70% of their original capacity remaining by the time it expires at ten years .
| Application | Energy Retention | Operating Limitation |
|---|---|---|
| Solar self-consumption or time-based control and backup | 70% at 10 years following initial installation date | Unlimited cycles |
| Any application not listed above, or any combination of applications that includes one not listed above | 70% at 10 years following initial installation date | 37.8 MWh of aggregate throughput (Measured at the battery AC output) |
How many cycles will a Tesla Powerwall last?
If you charge your Tesla Powerwall using solar power and the grid you will receive unlimited cycles as part of the 10 year warranty which includes charging the battery with off-peak electricity Tesla warrant the Powerwall 2 for 10 years, for OFF-Grid designs its also ten years or until it provides 37,800 kilowatt-hours of throughput energy, which is approximately 3,200 full cycles but a correctly designed system will never rely on using 100% of the energy storage capacity every day of its life.
Even big users of electricity with 10 kilowatts of solar panels will most likely average less than 0.85 cycles a day when restricted to charging solely off solar energy.
In Australia, typical battery usage is between 0.8 and 1.2 cycles per day. But even at double this the unlimited cycle warranty for grid-connected systems means there’s no concern about usage.
How long does a Powerwall battery last on one charge?
It’s really a question of what you’ll use it for. Let’s just say that if the power goes out at night, you won’t be using your AC. For one Powerwall, a more reasonable assumption would be to light ten 100-watt bulbs for 13.5 hours (without recharging the battery).
Conclusion
The Tesla Powerwall is a home battery with convenient dimensions that stores energy collected from solar panels or the grid. It can provide power to your home during outages, it can run in off-grid mode and it can also help you save money on your electricity bill. But how long will a Tesla Powerwall last? In this article, we explored Tesla’s Powerwall lifespan and found out how long you can expect your Tesla battery to last. If you have any questions, contact the friendly team at Skyline Solar, we would be happy to help.
