Tesla Powerwall 3

Energy Storage System

Tesla Powerwall 3 Certified Installer
13.5 kWh Capacity Per Battery
10-YR Battery Warranty
11.5kW Peak Continuous Power
AC-Coupled | Lithium-ion

Free Tesla Powerwall 3 Battery Install Quote


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Tesla Powerwall 3 Certified Installer - Forme Solar Electric

Tesla Powerwall Certified Installer Forme Solar

Why Choose Tesla Powerwall 3 For Your Home?

Tesla Powerwall 3 - Top-Tier Continuous Peak Power

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Power Output

The key characteristic of a battery is it's power ouput, usable capacity and efficiency. The Tesla Powerwall 3 provides an industry leading 11.5kW for both Peak and Continuous Power. This ensure seamless transitions of the home supply from grid power to backup power so that always-on appliances, such as the refrigerator and air conditioning, can be supported during a blackout.

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Larger Max System Size

The Powerwall 3 delivers 20 kW DC, which is 119% more than the Powerwall 2. This is crucial because it indicates the amount of solar energy your Powerwall can manage and store, ensuring your home maximizes solar power usage, even during periods without sunlight.

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Superior Savings

Tesla Powerwall 3 warrants that your Products will be free from defects for ten years. Tesla Powerwall's warranty guarantees at least 70% of its original capacity for 10 years. If the battery's storage drops below this threshold, it's covered. The Powerwall 2's warranty covers 37.8 MWh or 10 years, whichever comes first.

Battery Overview

Model Year
Connection Type (AC or DC)
Battery Chemistry

Battery Audience

Total Capacity

Usable Capacity

Power: Peak

Power: Continuous


Roundtrip Efficiency

Battery Dimensions





13.5 kWh

13.5 kWh

11.5 kW

11.5 kW



600 mm L

1099 mm W

190 mm D

Forme Tip: The key characteristics of a battery include its power output, usable capacity, and the efficiency with which it stores and discharges electricity. Additionally, factors such as the battery's chemistry play a significant role in determining its effectiveness at energy storage and overall performance. Understanding these characteristics is essential for selecting the right battery for specific applications and ensuring optimal energy management.

Tesla Powerwall 3 Battery Installation

The installation process varies depending on your location, permitting requirements, and homeowner association rules. The completion time can range from just a few weeks to several months depending on the size of the project and the permits required to set up your new battery system.

But rest assured, a Forme Solar Electric project manager will guide you through the battery installation process every step of the way. They will even help you to obtain the proper permits and deal with your utility company - making your experience as easy and seamless as possible.

Technical / Product Specific

Click here to download Spec Chart

Tesla Powerwall 3 Battery System Cost

Smart Battery Systems cost between $13,500 to $20,000 depending on the type, model, and state you live in. Sunnier states typically have better incentive programs in place. Smart Batteries can help save you money on your energy bills, but it's essential to know the overall startup costs for a smart battery system so you can budget accordingly. We will go over your smart battery system requirements and offer a free quote depending on your electric needs. Reach out today at 877-288-1097 to learn how much your custom plan will cost.

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Battery Backup FAQs

How long do battery systems typically last?

Tesla Powerwalls come with a 10-year warranty* which has been consistent across all of their Powerwalls due to Tesla engineering and stable and inert properties of the lithium-ion construction.

How much money will a battery backup save me?

The savings from a battery backup system can vary significantly based on several factors, including your location, energy usage, utility rates, and the specific battery system you install. Utility rates and Time-of-Use (TOU) pricing are crucial factors; if your utility company uses TOU pricing, electricity costs more during peak hours and less during off-peak hours. A battery backup can store energy during off-peak hours and use it during peak hours, saving on electricity costs. Net metering policies in some areas allow you to sell excess solar power back to the grid, and battery storage can help you maximize these benefits by storing excess energy generated during the day for use at night. If you experience frequent power outages, a battery backup can provide power during these times, preventing potential costs associated with outages. With a battery backup, you can reduce reliance on the grid, potentially leading to savings if utility rates increase over time. Monthly savings can be around $50, leading to annual savings of about $600. The initial cost of a battery system can range from $5,000 to $15,000 or more, depending on the capacity and installation costs. If your system costs $10,000 and you save $600 per year, the payback period would be around 16-17 years. Additionally, consider any available incentives or rebates that can reduce the initial cost of the system, improving the overall return on investment. For a more accurate assessment tailored to your specific situation, contact a local solar and battery installation professional who can analyze your energy usage patterns, local utility rates, and available incentives.

How do you pay for a battery system?

When purchasing a battery backup system, you have several options: an upfront cash payment, a solar loan, and other financing types as well. You can choose whichever option makes the most sense for your situation.

Do batteries increase the value of your home?

Batteries can potentially increase your home’s value compared to similar homes with no batteries. A home with a battery system will help reduce monthly electricity bills and provide protection during outages and are an enticing feature to homebuyers over properties that solely depend on electricity from the grid.

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Tesla Powerwall 3 - Top Tier Battery

Tesla Powerwall 3 Batteries are covered by a 10-year warranty** backed by extensive third-party testing and field data from more than a million batteries deployed worldwide.

10 Years

Product and power coverage


Year 12 minimum warranted capacity


Maximum annual degradation

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Forme Solar is the Leading Battery Installation Company in California

Choosing the right battery installation company is one of the most important decisions you’ll make when setting up your battery system. Our Battery Professional Installers offer excellent service from start to finish - unlike some ‘fly-by-night’ solar installation companies. We’ll be your one contact throughout the life of your battery system as we also specialize in solar repair in case you ever have an issue with a panel or your system’s performance.

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*Price is subject to availability and minimum size requirements.

**The 12-year warranty is not available in all countries or all installations and requires registration. Service availability varies by country and installation provider.