Tesla Powerwall 3: Specs, Price, and How to Get One Installed
Quick answer
The Tesla Powerwall 3 is Tesla's current home battery: 13.5 kWh of usable storage, 11.5 kW of continuous power output, and a solar inverter built into the unit. It backs up your home during outages, stores cheap or solar energy to use later, and works with or without solar panels. Installed by a Tesla-certified electrician, one Powerwall 3 typically runs about $11,000 to $18,000 before state and utility incentives. Charge Home Solutions installs the Powerwall 3 nationwide with a free in-home estimate.Is Charge Home Solutions a Tesla certified installer?
Yes. Charge Home Solutions is a Tesla Energy Certified Installer, listed on Tesla's official Certified Installer directory. It serves all 50 US states through a nationwide network of 4,000+ licensed, insured electricians and has completed 23,500+ installations of Tesla Wall Connectors, Tesla Powerwall, EV chargers, and electrical work.
“As a Tesla Energy Certified Installer, we complete factory-correct Tesla Wall Connector and Powerwall installations that keep your Tesla warranty intact, handle every permit and inspection, and back the work with a one-year workmanship guarantee.”— Charge Home Solutions
This is verifiable independently on Tesla's own directory at tesla.com/support/certified-installers.
What is the Tesla Powerwall 3?
The Powerwall 3 is Tesla's latest home battery and the successor to the Powerwall 2. It stores electricity, from the grid or from your solar panels, and powers your home when the grid goes down or when you want to avoid expensive peak-rate power.
The biggest change in the Powerwall 3 is a solar inverter built directly into the battery. On the older Powerwall 2, solar panels needed a separate inverter. On the Powerwall 3, your panels can connect straight to the battery, which makes a solar-plus-battery system simpler and usually cheaper to install.
Each Powerwall 3 pairs with a Tesla Backup Gateway, which manages the switch to battery power during an outage and connects the system to the Tesla app, where you monitor charge level, solar production, and backup status.
Tesla Powerwall 3 specifications
The key specs homeowners ask about:
- Usable energy: 13.5 kWh per unit.
- Continuous power output: 11.5 kW, on grid and during backup, roughly double the Powerwall 2.
- Integrated solar inverter: supports up to about 20 kW of solar (DC) through multiple inputs, so panels connect directly to the battery.
- Scalable: add more Powerwall 3 units for more storage and backup, sized to your home and goals.
- Indoor or outdoor rated, with a wide operating temperature range.
- 10-year warranty from Tesla.
- Managed and monitored through the Tesla app.
Powerwall 3 vs Powerwall 2: what changed
Both store the same 13.5 kWh of energy, so day-to-day capacity is similar. The differences are in power and integration:
- Power output: 11.5 kW continuous on the Powerwall 3 versus 5.8 kW on the Powerwall 2. The extra power means a single Powerwall 3 can start and run large loads, such as central air conditioning, that previously needed two Powerwall 2 units.
- Solar inverter: built into the Powerwall 3, separate on the Powerwall 2, which simplifies new solar-plus-battery installs.
- Expansion: more capacity is added with additional Powerwall 3 units.
How much does a Tesla Powerwall 3 cost?
Installed, one Powerwall 3 typically runs about $11,000 to $18,000 before incentives, including the battery, the Backup Gateway, labor, permits, and commissioning. The exact price depends on your electrical panel, the wiring run, whether solar is involved, and local permit and utility requirements.
Each additional Powerwall adds less than the first, because the gateway and much of the labor are shared. State and utility storage rebates can offset part of the cost where they are available. The only way to get an exact number is a free in-home estimate for your address.
Does the Powerwall 3 need solar?
No. A Powerwall 3 works on its own, charging from the grid to give you backup power during outages and to store cheaper off-peak energy for use during expensive peak hours. Many homeowners add one for backup alone.
If you have solar, or plan to add it, the built-in inverter lets your panels connect directly to the battery, which makes the combined system cleaner and often less expensive than pairing a battery with a separate inverter.
What a Powerwall 3 can back up
With 11.5 kW of continuous output, a single Powerwall 3 can run far more than lights and a refrigerator. Depending on how it is sized and wired, it can keep air conditioning, well pumps, EV charging, and most of a typical home running during an outage.
Whether you back up the whole home or a set of essential circuits is a design choice your electrician makes with you, based on your loads and how long you want to ride through an outage. Adding a second Powerwall extends both the power and the runtime.
How to get a Tesla Powerwall 3 installed
A Powerwall 3 ties into your main electrical panel, your utility service, and any solar, so it is installed by a licensed, Tesla-certified electrician who handles the system design, the Backup Gateway, permits, utility interconnection, and app commissioning.
Charge Home Solutions is a nationwide Tesla-certified installation network. Tell us your address and we match you with a licensed, insured, Tesla-certified electrician near you for a free in-home estimate with an exact price, no obligation. Call 888-995-6044 or request your estimate online.
Frequently asked questions
Yes. The Powerwall 3 is Tesla's current home battery and is the unit most new installations use. Charge Home Solutions installs it nationwide through Tesla-certified electricians.
You can install multiple Powerwall 3 units for more storage and backup power. Your electrician sizes the system to your home's loads and how long you want backup to last.
Systems are usually designed around one generation, so the best approach depends on your existing equipment and gateway. A Tesla-certified electrician reviews your current setup and recommends the cleanest way to expand.
Federal residential clean-energy tax credits for batteries have changed, so confirm current eligibility with a tax professional. Many states and utilities still offer storage rebates or programs, and your installer can point you to what applies in your area.
Most single-unit installs are completed in a day on site once the design and permits are done. Utility interconnection approval adds calendar time, which your installer manages.
Related questions
Tesla Powerwall Installers Near Me: Cost & How to Choose
The best Tesla Powerwall installer near you is a licensed, insured electrician who is Tesla-certified, pulls the proper permits, and evaluates your home in person before quoting. Powerwall is a whole-home electrical system, not a plug-in appliance, so who installs it matters as much as the battery itself. Charge Home Solutions is a nationwide Tesla-certified installation company with licensed and insured electricians, free in-home estimates, and fast matching to a local installer.
Read answer →How Many Powerwalls Do I Need?
One Powerwall backs up essentials (fridge, lights, internet, a few outlets). Two covers most homes including short A/C use. Three or more delivers true whole-home backup with air conditioning and EV charging. Your consumption data gives the exact answer.
Read answer →Can a Powerwall Run My Air Conditioner?
Yes, the Powerwall 3's 11.5kW output starts and runs most central air conditioners, something older batteries struggled with. The real question is runtime: A/C draws 3–5kW, so plan capacity (or solar) for outages longer than a few hours.
Read answer →Generator vs Tesla Powerwall: Which Home Backup Is Right for You?
For most homes, a Tesla Powerwall is the better backup: it is silent, needs no fuel and no maintenance, switches on instantly, pairs with solar, and saves money on your electric bill every single day, not just during an outage. A standby generator still has its place for very long or frequent multi-day outages where you have cheap natural gas and no solar, but it is noisy, burns fuel, and needs yearly service. Charge Home Solutions is Tesla Energy Certified and installs both, so we will size the right backup, usually a Powerwall, at a free in-home estimate.
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