kWh of usable energy
Enough to keep essential circuits running through an evening or a typical outage, depending on what you power.
Home battery & Tesla Powerwall 3 installation in Florida and CaliforniaKeep the lights on.
Keep the sun for later.
Store your solar energy. Use it at night, during peak rates or when the grid goes down.
VOLT is a Tesla Powerwall Certified Installer. We design home batteries around the circuits you want to protect, the way your utility credits solar, and the outages you plan for.
Batteries can be added to most existing solar systems or installed with a new one. Availability is confirmed for each property. Not sure how many batteries you need? Find the right solar + battery solution for your home.
Last reviewed October 2026.
Tesla Powerwall 3 / Key specs
One battery.
A built-in solar inverter.
Powerwall 3 combines storage and a solar inverter in one wall-mounted unit, which simplifies new solar-plus-storage installations.
kW of continuous power
Continuous on-grid output, configurable from 5.8 kW. It can start demanding loads such as many central air conditioners.
kW of solar input
An integrated inverter with six MPPTs accepts up to 20 kW of DC solar, so many systems need no separate inverter.
year warranty
Tesla's limited warranty covers 10 years. Systems can be expanded with up to three expansion units.
Why a battery / Where you live
Two states.
Two good reasons.
In Florida a battery is mainly about resilience. In California it is mainly about savings, depending on your utility's solar tariff.
Sources: FPL net metering FAQ; Florida PSC Rule 25-6.065 (net metering, investor-owned utilities); OUC rooftop solar and TruNet Solar; CPUC Net Billing Tariff; LADWP net energy metering rates; SMUD Solar and Storage Rate; Anaheim Public Utilities net metering; SGIP program announcements; SDG&E January 2026 rate change.
Cost / Incentives in 2026
What a battery
costs today.
A Tesla Powerwall 3 from VOLT costs from $13,500, installation by VOLT included, in Florida and California, before any incentives. Each additional battery is $9,500 in Florida and $9,000 in California. California also offers battery-only and expansion configurations. Electrical upgrades your home may need are quoted separately.
The federal residential clean energy credit (Section 25D) ended for systems completed after December 31, 2025, so homeowners who buy a battery can no longer claim it. Batteries installed through a lease or a power purchase agreement can still benefit from the business tax credit claimed by the system owner, which remains available for storage through 2033.
Your VOLT proposal shows the purchase and financing options side by side, with the incentives that apply to your property.
Sources: IRS guidance on 25D.
- 01
Choose what stays on.
List the circuits and appliances you need during an outage, and share a year of electricity bills.
- 02
Size the system.
We match battery capacity and power to those loads, your solar production and your utility's billing rules.
- 03
Install and commission.
Permits, installation, utility approval and app setup. We walk you through backup settings at handover.
Before you begin
Good questions.
Clear answers.
How long will a Powerwall 3 power my home during an outage?
It depends on what you run. Its 13.5 kWh of usable energy can keep essential loads such as the refrigerator, lights, Wi-Fi and some outlets running for many hours, and solar recharges it during the day. Central air conditioning uses energy much faster. We estimate runtime for your selected circuits in the proposal.
Can I add a battery to my existing solar system?
Usually, yes. Powerwall 3 can be added to many existing systems, and Powerwall 3 Expansion units can increase capacity later. We review your current inverter, panel and utility agreement first.
Do I still get a federal tax credit for a home battery in 2026?
Not if you buy it. The 25D homeowner credit ended for systems completed after December 31, 2025. Batteries installed through a lease or PPA can still benefit from the credit claimed by the system owner, which is reflected in the price you are offered.
Is a battery worth it in Florida?
In Florida the main reason is backup during hurricanes and outages. The savings case depends on your utility: FPL, Duke Energy Florida and TECO offset exported solar against your use, while some municipal utilities such as OUC now credit new systems at lower export rates. We check your utility's current rules in your proposal.
Why do California solar customers add batteries?
Customers of PG&E, SCE and SDG&E are on the Net Billing Tariff (NEM 3.0), which credits exported solar far below the retail rate. A battery stores midday solar for use in the evening peak, when energy is most expensive. LADWP, SMUD and Anaheim Public Utilities have their own solar rules, so we model your utility's tariff before recommending storage.
Your home / Your next step
Plan your
home battery.
Tell us which circuits matter most and where your home is. We will confirm availability and prepare a battery plan.
Plan a home batteryStart a conversation with VOLT.
FL(786) 876-8143CA(213) 329-3808contact@volthome.comService scope, equipment, incentives, permits, schedule and warranty terms are confirmed in your written proposal.