V2X / Vehicle-to-Home
Use Your EV to Power Your Home
Your EV's battery holds several times more energy than a home battery. With the right equipment, it can keep your Southeastern PA home running for days when the grid goes down.
Last updated: October 7, 2026
V2L, V2H, V2X — what's the difference?
“V2X” (vehicle-to-everything) is the umbrella term for EVs that can send power back out. For homeowners, the one that matters most is V2H: backing up your house.
Plug appliances or tools directly into outlets on the car. Handy, but it doesn't power your home's circuits.
The car feeds your home's electrical panel during an outage, just like a home battery.
The car sends power back to the utility grid. Requires vehicle, equipment, and utility support.
More universal: Sigenergy V2X
Tesla Powershare only works with Tesla vehicles. Sigenergy's V2X DC bidirectional charger pairs with a SigenStor battery system and works with compatible EVs from several manufacturers, including the Ford F-150 Lightning, Rivian R1T and R1S, and bidirectional-capable Mercedes-Benz EQ models. Not every manufacturer supports bidirectional charging yet, so we confirm your specific vehicle before recommending it. Charge the car from your solar panels during the day, and let it power your home overnight or during an outage.
Learn about Sigenergy SigenStorTesla Powershare vs. Sigenergy V2X
| Tesla Powershare | Sigenergy V2X | |
|---|---|---|
| Compatible EVs | Tesla only — Model 3 & Model Y with PCS2 Lite hardware (all ordered Oct 1, 2026 or later), plus Cybertruck | Multiple brands — incl. Ford F-150 Lightning, Rivian R1T/R1S, select Mercedes-Benz EQ (not every manufacturer supports bidirectional charging yet) |
| Home equipment needed | Powerwall 3 + Tesla Wall Connector or Universal Wall Connector | Sigenergy SigenStor + Sigenergy V2X DC bidirectional charger |
| How the car connects | AC, through the Wall Connector | DC, through the bidirectional charger |
| Max continuous output | 11.52 kW (per Tesla) | Depends on system configuration |
| Sell EV power to the grid | Not available on Model 3 / Model Y | Depends on vehicle and utility approval |
| Best fit | Households that drive a recent Tesla and plan to stay with Tesla | Non-Tesla EVs, mixed-brand households, or anyone who may switch EV brands later |
Why it matters here: storm outages in Southeastern PA can last days. An EV paired with a home battery and solar gives you layered backup — the battery covers the first hours instantly, the car extends it for days, and your panels recharge everything when the sun comes out.
Frequently asked questions
Can my Tesla Model 3 or Model Y power my house during an outage?+
Yes, if it supports Powershare and you have a Powerwall 3. Tesla guarantees Powershare Home Backup on Model 3 and Model Y vehicles ordered in the US or Puerto Rico on or after October 1, 2026. Powershare requires Tesla's PCS2 Lite onboard inverter; some, but not all, earlier cars have it — check your touchscreen under Software → Additional Vehicle Information and look for "Powershare Support." The car plugs into a Tesla Wall Connector or Universal Wall Connector, and Tesla support turns the feature on.
How long can a Tesla Model 3 or Model Y back up my home?+
Tesla says a Model 3 or Model Y adds over two days of backup for a home using 30 kWh per day, starting from a 90% charge (up to two days for Standard trims). A Cybertruck adds more than three days. With solar panels recharging your Powerwall during the day, outages can be ridden out even longer.
Do I need a Powerwall for Tesla Powershare?+
For Model 3 and Model Y, yes — Powerwall 3 is required. Tesla says Powerwall 2 and Powerwall+ support is "coming soon." If you already have a Powerwall 3 and a Wall Connector, Tesla says no additional hardware is needed. Cybertruck owners can alternatively use Tesla's Powershare Gateway without a Powerwall.
Can my Model 3 or Model Y sell power back to PECO?+
No. Tesla says Grid Support is not available for Model 3 or Model Y — Powershare on these cars is for backing up your home, not exporting to the grid. Your solar panels still earn PECO net metering credits and PA SRECs as usual.
What if I don't drive a Tesla?+
Sigenergy's V2X DC bidirectional charger works with compatible EVs from other manufacturers, including the Ford F-150 Lightning, bidirectional-capable Mercedes-Benz EQ models, and Rivian R1T and R1S. Not every manufacturer supports bidirectional charging yet, and Ford and GM also sell their own home backup hardware for their EVs. We confirm your specific vehicle's compatibility before recommending a setup.
Tesla Powershare or Sigenergy V2X — which is right for me?+
Powershare is Tesla-only and needs a recent Model 3/Model Y (PCS2 Lite hardware) or a Cybertruck. If that's your car and you plan to stay with Tesla, it's the simplest path — no separate bidirectional charger. Sigenergy is more universal: if you drive a non-Tesla EV, have more than one EV brand, may switch brands later, or want a modular battery that you can expand in small steps, Sigenergy is usually the better fit. We install both and will recommend based on your car, your loads, and your backup goals.
Want your EV to back up your home?
We install Tesla Powerwall 3, Wall Connectors, and Sigenergy V2X systems across Southeastern PA. Tell us what you drive and we'll recommend the setup that fits.
Get a V2X Consultation