Updated 2 days ago

How Much Does a Tesla Powerwall Cost in 2024? And Is It Really Worth It?

Find out what a Tesla Powerwall costs in your area

Image courtesy of Tesla, Inc.

Key takeaways

  • A fully installed Tesla Powerwall costs $15,600, including accessories and installation costs. The price of a Powerwall before installation is $9,300.

  • You can lower Tesla Powerwall costs with solar battery incentives like the 30% federal tax credit and local energy storage rebates.

  • The total cost of a Tesla Powerwall installation depends on how many batteries you install, the installer you choose, and your location.

  • The Tesla Powerwall is worth it for homeowners who want a backup power source, don’t have access to full-retail solar net metering, or who use time of use rates.

The Tesla Powerwall costs about $15,000 with installation in 2024. The final price of a Tesla energy storage system will depend on how many Powerwalls are installed, the installer you use, and the final system design. 

Tesla has been in the battery game since its launch of the Powerwall battery in 2015, and it has since become one of the most popular lithium-ion batteries on the market. Our experts even named it one of the five best home solar batteries

The Tesla Powerwall is powerful, has excellent features, and meets the energy needs of most homeowners.  But is the Powerwall worth the price tag? 


How much does the Tesla Powerwall cost in 2024?

Tesla Powerwall on the side of a home at night

Image courtesy of Tesla, Inc.

According to Tesla’s website, a Tesla Powerwall costs about $15,600 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.

The following table breaks down the cost of a Tesla Powerwall 3 installation:

Tesla Powerwall system equipment

Cost

1 Powerwall battery

$8,200

Gateway

$900

Accessories

$200

Tesla installation

$6,300

Estimated Powerwall installation cost

$15,600

Exactly how much a Tesla Powerwall system costs depends on several factors, such as the number of batteries you install, the installer you choose, and the incentives you qualify for. 

Find out how much a Tesla Powerwall costs in your area

How many Tesla Powerwalls you install

Most homeowners will need between one and two Powerwall batteries to run essential appliances during a power outage. The cost of each Powerwall decreases as more units are installed, spreading out installation and accessory costs.

The following table shows how the price of multiple Powerwalls and its impact on the price of each unit, including installation costs:

Number of Powerwalls

Total Powerwall system cost

Cost per Powerwall unit

1

$15,600

$15,600

2

$24,200

$12,100

3

$32,700

$10,900

4

$41,700

$10,425

5

$51,200

$10,240

6

$60,400

$10,067

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. 


Tesla Powerwall installation and labor costs

The installation and labor costs for a Tesla Powerwall will vary depending on the installer you choose. If installed directly by Tesla, the installation cost is approximately $6,300 for a single Powerwall, with slightly higher costs in some markets. The installation costs increase by $300 for each additional unit. 

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.

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 needed, which lowers overall labor costs!


Tesla Powerwall maintenance and replacement 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. 


Are there incentives or rebates to lower Tesla Powerwall costs?

Yes, there are several solar battery storage rebates and incentives available that can reduce the price of a Tesla Powerwall 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. An $15,600 Powerwall system would earn a $4,680 tax credit! The following table outlines how much different-sized Tesla Powerwall installations would cost after the federal tax credit: 

Number of Powerwalls

Powerwall system cost

Powerwall system cost after tax credit

1

$15,600

$10,920

2

$24,200

$16,940

3

$32,700

$22,890

4

$41,700

$29,190

5

$51,200

$35,840

6

$60,400

$42,280

There are also a variety of local and state rebates that can help reduce battery costs. One thing to keep an eye out for is virtual power plant (VPP) programs, which allow utilities to pay for access to homeowners’ batteries to reduce stress on the grid. Tesla is eligible for several VPP programs, and some of them earn Powerwall owners hundreds of dollars a month! 

Tesla Powerwall discounts! Tesla offers a discount on Powerwall installations when batteries are bundled with the direct purchase of Tesla solar panels or Tesla Solar Roof. Solar & Powerwall discount starts at $4,000 off but can reach a discount of over $28,000 when installing 10 Powerwalls.

Find out how much you can save on a Tesla battery incentives and rebates

How to order the Tesla Powerwall

There are three ways to purchase a Tesla Powerwall: 

  1. Order a Powerwall directly from Tesla’s website: A Powerwall can be ordered on Tesla’s website and installed by Tesla in qualifying locations. This will likely be the cheapest way to get a Powerwall. You do not need to purchase a Tesla solar system or a Tesla Solar Roof to buy a Powerwall. 

  2. Order a Powerwall using Tesla Direct: You can order a standalone Tesla Powerwall through Tesla’s website, which will be delivered right to your door. However, ordering through Tesla Direct doesn’t always include an installation. You may need to find a Powerwall-certified installer to connect the battery to your home. 

  3. Purchasing a Powerwall from a local Tesla Certified Installer: You can request an installation through a Certified Installer by finding one locally or submitting your information on Tesla's website. Local installation costs are likely higher than Tesla’s, but you may receive better long-term customer support.

Tesla Powerwalls have had significant wait times in the past, and some markets do experience delays. These issues are not nearly as significant today. 

However, you will have to wait for design plans and permitting to be finalized, which may take a few weeks. From when you order your Powerwall to when it can be used, it might take anywhere from one to six months. 


Tesla Powerwall pros and cons

Pros
  • Excellent value

  • Easy-to-use operating modes can help save money and maximize energy independence

  • Virtual power plant capabilities

  • Access to backup power source during blackouts

Cons
  • Powerwall 3 is not designed to connect to existing solar systems

  • Powerwall 3 can’t pair with non-Tesla inverters

  • Limited sizing options vs. modular competitors

  • Tesla has a poor customer service reputation

Find out if a Tesla home battery can benefit you

Tesla Powerwall models: specs and features

Tesla Powerwall 3, Powerwall 2, and Powerwall+ models side by side.

The Tesla Powerwall is a lithium-ion home storage battery that can be installed on its own or alongside solar panels to store energy for later use. It provides backup power during blackouts and can potentially save money on electricity bills. There are three models of the Powerwall: the Tesla Powerwall 3, the Tesla Powerwall 2, and the Tesla Powerwall+.

Powerwall model

Tesla Powerwall 3

Tesla Powerwall 2

Tesla Powerwall+

Capacity

13.5 kWh

13.5 kWh

13.5 kWh

Power output

11.5 kW

5 kW

7.6 kW

Weight

287 lbs

251 lbs

343.9 lbs

Warranty

70% capacity after 10 years

70% capacity after 10 years

70% capacity after 10 years

Solar inverter

Included

Not included

Included

Solar inputs

x

4

Scalable

Up to 4 units

Up to 10 units

Up to 4 units 

Powerwall 3 is the newest Tesla home battery for sale. The built-in hybrid solar inverter is the most significant difference between the Powerwall 3 and its predecessors. The Powerwall 3 unit has six solar inputs, allowing it to pair with large solar systems up to 20 kilowatts (kW) in size. It also has an impressive continuous power output of 11.5 kW to run even the most power-hungry appliances. 

The Powerwall 3 is best for homeowners installing new solar panel systems, especially if that system is large. Because of its high power output, it’s also a great battery storage option for homeowners who want to run power-hungry appliances like an air conditioner or sump pump. 

However, newer isn’t always better. People with solar panels on their roofs should consider Powerwall 2, as it’s easier to connect to an existing solar installation. You can also install more Powerwall units in a Powerwall 2 system, so if you need more than 54 kWh of storage, look into the Powerwall 2. 

Important note: Powerwall 3 doesn’t always play well with others. You cannot combine 

Powerwall 3 models with Powerwall 2 models. The Powerwall 3 isn’t designed to be installed with an existing solar panel system and can’t pair with non-Tesla inverter brands. However, the Powerwall 3 can be combined with any brand of solar panels so long as they meet the necessary voltage requirements.


Tesla Powerwall warranty

The Tesla Powerwall comes with a 10-year warranty that guarantees the battery will maintain at least 70% capacity at the end of the warranty period. The unlimited cycle warranty applies only if the battery is used for solar self-consumption, time-based control, and backup reserve. The warranty is based on a 100% depth of discharge (DoD), meaning the battery can be fully discharged without damage. 

If the Powerwall is used with any other application or combination of applications, the battery is only guaranteed to operate at 70% after the earlier ten years or 37.8 MWh of throughput. It’s unclear if this means using Powerwall modes such as energy exports or altering advanced settings will shorten the warrantied lifespan.  

Tesla’s home battery warranty is pretty standard for battery storage, and the backing by a large company makes us confident that Tesla should be around to honor any warranty claims made in its warranty life. 


How many Tesla Powerwalls do I need?

The number of Tesla Powerwalls you need depends on a few factors, but most homeowners only need one or two Powerwalls to keep their essential appliances running off-grid during an outage. 

The following table describes the backup duration of different-sized Powerwall systems with and without solar for an average home:

Number of Powerwalls

Backup duration with solar

Backup duration without solar

1

7 - 14 hours

9 - 12 hours

2

14 - 24 hours

17 - 24 hours

3

21 hours - 2 days

1 - 1.5 days

4

1 - 2.5 days

1.5 - 2 days

5

1.5 - 3 days

2 - 2.5 days

6

2 - 3.5 days

2 - 3 days

If you’re looking for whole-home backup, you’ll need to install six or more Powerwalls. But, if you’re fine with keeping your fridge, lights, and TV on for a few hours, one or two Powerwalls are more than enough. 

The number of Powerwalls you need also depends on the appliances you’re looking to run. Electrical loads like air conditioners and clothing dryers are power intensive and will quickly drain your batteries’ capacity, meaning you would need more batteries to run these loads for prolonged periods. 

Use our calculator to find out how many batteries you need to run different appliances

Tesla Powerwall vs. competitors

Tesla Powerwall 3 next to an Enphase, Panasonic, and sonnen battery.

The Powerwall is a top solar battery, but there are plenty of Tesla Powerwall alternatives that may be a better choice for you. The following table outlines some other solar batteries on the market compared to the Tesla Powerall 3:

Model

Tesla Powerwall 3

Enphase IQ 5P

Panasonic EverVolt Home Battery

sonnenCore+ 10

Est. price per kWh

$866

$1,600

$1,185

$1,300

Battery capacity

13.5 kWh

5 kWh

13.5 kWh

10 kWh

Power output

11.5 kW

3.84 kW

7.6 kW

4.8 kW

Warranty

70% capacity after 10 years

60% capacity after 15 years

70% capacity after 12 years

70% capacity after 10 years

Round trip efficiency

89%

90%

89%

86%

Expandability

Yes, double size only

Yes, 5 kWh increments

Yes, 4.5 kWh increments

Yes, double size only

The Tesla Powerwall 3 costs $866 per kWh of storage capacity, making it one of the best home batteries in value. At 13.5 kWh, the Powerwall offers enough energy capacity for most homeowners. Tesla has been in the battery game since 2015, so the Powerwall has a proven track record of great performance. 

However, Tesla’s warranty terms are falling behind those of some of its competitors. Top brands like Panasonic and Enphase have been offering warranty protection on their battery products for over ten years. 

Also, Tesla batteries aren’t as flexible regarding system design and sizing. The Panasonic EverVolt battery is modular so you can get just the right amount of storage for your energy consumption needs. With the Powerwall, you need to double the size of your battery if you need more than 13.5 kWh. 

If you’re looking for a relatively simple energy storage solution for a low price, then a Tesla Powerwall is a great option. However, if you need more customization in the design of your system, there are better options. 


Tesla Powerwall return on investment

An average solar panel system paired with one Tesla Powerwall battery can pay for itself in about 14 years when the tax credit is considered. Tesla Powerwalls are among the most cost-effective home batteries on the market, and they are likely to provide you with the best return on your investment.

However, the amount of savings a Powerwall can provide depends heavily on how your utility bills are calculated and local incentives. In most cases, a Tesla Powerwall won’t pay for itself and might not even offer you any financial benefits. Here are a few different ways installing a Tesla battery would impact your energy bill: 

  • If you don’t have solar but are on a time of use rate schedule, a Powerwall battery could save you a small amount of money on your monthly electricity bills by charging it during off-peak hours and discharge during peak-hours. These savings would be minimal, and unless there were about a $0.30 difference between peak and off-peak rates, the savings would never pay off the cost of the battery. 

  • If you have solar panels and full retail net metering, a Powerwall battery will not save you any additional money. The solar energy you produce already offsets the full cost of electricity, so the Powerwall could not add savings. 

  • If you have a solar power system and don’t have full retail net metering or are on a time of use rate, a Powerwall can save you additional money, but not much. However, the combined savings from the battery and solar could still result in a payback period of 14 years, which means you would have a decade of free energy!

Even though the Powerwall is one of the most cost-effective battery solutions, the financial benefits won’t pan out for most homeowners. In places like California, where new Net Billing rules have substantially changed how solar energy is valued, a Powerwall can offer homeowners more savings and actually result in a lower solar payback period. To determine if a battery is the best financial investment for you, it's best to speak to a local solar company.

Find trusted battery installation companies near you

Is the Tesla Powerwall worth the cost?

The Tesla Powerwall is worth considering if you’re interested in a battery storage system because of its low price and impressive power output. If you need backup power, are installing a brand new solar system, and want to run large appliances, you can’t get much better than the Powerwall 3.

But the Tesla Powerwall isn’t the best battery for everyone. The new Powerwall 3 isn’t suited to pair with already installed solar panels and can’t pair with microinverters. So, if your solar system is complex or might experience shading, a different battery could be better for you. However, the six solar inputs of the Powerall 3 likely mean this won’t be an issue for most homeowners. 

Also, the Tesla Powerwall might not provide everyone with financial benefits. While it can still give a good payback period when paired with solar panels, installing the Powerwall on its own in hopes of lowering your electricity bills won’t be worth it. This is probably why installers in our 2024 Solar Industry Survey found most consumers wanted to get storage for the backup power benefits, not financial ones. 

While the low prices of Tesla's solar panels and batteries are attractive, Tesla doesn’t have the best customer service reputation, which you need to consider when making a 10+ year investment in storage. But, you might avoid some of these frustrations if you get your Powerwall through a local Tesla Certified Installer, as they can be a little more hands-on during the entire process. 

Find a trusted local solar company to install a Powerwall

Tesla Powerwall FAQ

Written by Catherine Lane Solar Industry Expert

Catherine is the Written Content Manager at SolarReviews, where she has been at the forefront of researching and reporting on the solar industry for five years. She leads a dynamic team in producing informative and engaging content on residential solar to help homeowners make informed decisions about investing in solar panels. Catherine’s expertise has garnered attention from leading industry publications, with her work being featured in Sola...

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