Tesla Battery Storage
Tesla Cashback Offer
For a limited time, Tesla are offering £350 rebate for system owners.
Between August 11th and December 31st, 2023, end-users can claim a rebate of £350 against each Powerwall.
After they have been installed, connected to the internet and registered, the customer will be notified from the Tesla app to submit the rebate request. Once confirmed, Tesla will transfer the funds of their eligible rebate to their nominated bank account.
Tesla Energy Storage for a Sustainable Home
Powerwall is a home battery that charges using electricity generated from solar panels, or when utility rates are low, and powers your home in the evening. It also fortifies your home against power outages by providing a backup electricity supply. Automated, compact and simple to install, Powerwall offers independence from the utility grid and the security of an emergency backup.
How it Works
A typical Powerwall system includes solar panels, an inverter for converting electricity between direct current and alternating current, a meter for measuring battery charge, and in backup applications, a secondary circuit that powers key appliances. Which components are required depends on how you use your home battery.
How does Tesla's battery work?
Tesla and other electric carmakers have invested a significant amount of time and money into developing long-lasting battery technology. An enduring concern of American car buyers is that electric vehicles don't hold enough charge, and that they could be left stranded along the roadside as a result. While Tesla’s research into battery technology was initially focused on the auto market, manufacturing a Tesla battery pack for home use is another way for the company to bring its existing inventions to market.
As with other energy storage products, the Tesla battery pack is sized for day-to-day use at your home, and is usually paired with a home solar panel system. When your solar panels produce more electricity than you can use in your home, the excess is stored in the battery pack instead of being sent back into the electric grid. Later, when your panels aren’t producing enough electricity, you can use the electricity stored in your Powerwall instead of having to buy it from your utility.
What is the Tesla Powerwall warranty, and how long does the battery last?
The Powerwall comes with an unlimited 10-year warranty that assumes your battery is used for daily charging and draining. This warranty includes a capacity warranty that guarantees your Powerwall will retain at least 70 percent of its capacity to hold a charge during this time.
Tesla’s battery technology is similar to other rechargeable batteries both large and small: as time goes on, the battery loses some of its ability to hold a charge. Think of how the battery life of a brand-new smartphone compares to one that is a few years old. As you continually charge and drain your phone’s battery, it starts to lose some of its ability to hold a charge.
Tesla battery life will deteriorate in the same way. That isn’t an indicator of a product flaw – all batteries lose some of their ability to hold a charge over time, whether it’s an electric vehicle battery, a home energy battery, or a rechargeable AA battery. This is why Tesla offers a warranty that guarantees a certain amount of storage capacity.
While the warranty isn’t the only criterion to evaluate when choosing a solar battery for your home, it should be one factor under consideration when making an investment in solar-plus-storage.