According to Tesla's website, a Tesla Powerwall costs about $16,800 to install before incentives, depending on where you live. This is lower than the cost of most solar battery systems—you'll be hard-pressed to find lithium-ion home backup storage cheaper than Tesla. Contact online >>
According to Tesla''s website, a Tesla Powerwall costs about $16,800 to install before incentives, depending on where you live. This is lower than the cost of most solar battery systems—you''ll be hard-pressed to find lithium-ion home backup storage cheaper than Tesla.
Most homeowners will need between one and two Powerwall batteries to run essential appliances during a power outage. In October 2024, Tesla started selling its Powerwall expansion units, which can be paired with a Powerwall 3 to increase storage capacity.
The Powerwall 3 expansion units are cheaper than the Powerwall 3, costing about $6,000 each. Why are Powerwall 3 expansion units cheaper? Because they don''t include an inverter. They also make it easier to install multiple Powerwalls, reducing installation times by about half, and lowering labor costs.
All Tesla Powerwall systems need to be installed with a Gateway and the necessary accessories to properly integrate with your home, the grid, and Tesla''s monitoring system. Each Powerwall Gateway costs $900, while Powerwall accessories cost $200.
The installation and labor costs for a Tesla Powerwall will vary depending on the installer you choose. We estimate the installation cost is approximately $7,500 for a single Powerwall based on historical and current quotes from Tesla, with slightly higher costs in some markets.
If you choose a local solar company for the Powerwall installation, the cost will be similar, possibly slightly higher, depending on labor rates in your area. It's important to note that Tesla requires Powerwalls to be installed by Certified Tesla installers, so ensure that the company you choose is part of Tesla''s network to avoid voiding the warranty.
Installation costs can also vary with the design of your system. Some homes may require electrical upgrades and the addition of a backup loads sub-panel, which can add $2,000 or so to the total cost of a Powerwall installation.
However, Tesla does have a new piece of equipment called the Backup Switch which eliminates the need for a sub-panel. Tesla claims the Backup Switch can reduce installation time by six hours and cut down on the amount of equipment needed, potentially saving thousands of dollars on a Powerwall installation! The Backup Switch is only approved for use by select utilities in certain states.
Expert insights! Solar installers voted the Tesla Powerwall as the easiest battery system to install in our 2024 Solar Industry Survey. A simple installation process could mean less time and fewer crew members, which lowers overall labor costs!
Solar batteries like the Tesla Powerwall require minimal maintenance, resulting in low upkeep costs. If any issues arise with your battery system, any Powerwall repair and replacement costs will likely be covered by warranty. But, fully replacing a Tesla Powerwall battery will cost about $10,000, just about the same price as the initial installation.
The biggest incentive is the 30% federal solar tax credit, which can save thousands of dollars on energy storage systems like the Tesla Powerwall. A $16,800 Powerwall system would earn a $5,040 tax credit!
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