Each GM EV has different home charging speeds.
GM’s Ultium platform vehicles support different max AC charging rates depending on the onboard charger they were ordered with:
- Chevy Bolt EV / EUV — 7.7 kW (32A). Standard.
- Chevy Equinox EV / Blazer EV — 11.5 kW (48A). Standard.
- Chevy Silverado EV / GMC Sierra EV — up to 19.2 kW (80A) with optional Ultium Home charger. Standard is 11.5 kW (48A).
- GMC Hummer EV — up to 19.2 kW (80A) with Ultium Home. Standard is 11.5 kW (48A).
- Cadillac Lyriq / Optiq / Vistiq — 11.5 kW (48A).
The Silverado/Hummer 80A capability is the fastest residential AC charging available. It requires a 100A circuit and is typically only worth doing for fleet/work usage.
Right-sizing your GM home install.
| EV Model | Recommended Circuit | Typical LA Install Cost |
|---|
| Bolt EV/EUV | 40A (32A continuous) | $1,100–$1,800 |
| Equinox EV / Blazer EV | 60A (48A continuous) | $1,500–$2,800 |
| Silverado/Sierra EV (standard) | 60A (48A continuous) | $1,600–$3,000 |
| Silverado/Hummer (80A) | 100A (80A continuous) | $4,500–$8,500 |
| Cadillac Lyriq | 60A (48A continuous) | $1,500–$2,800 |
For most GM EV owners, a 48A install is the sweet spot — fast enough to add ~25 miles of range per hour, but doesn’t require panel upgrades on most LA homes.
GM Energy bidirectional and home backup.
Newer GM EVs (Silverado EV, Equinox EV, Blazer EV with appropriate options) support GM Energy bidirectional charging — your truck can power your house during outages. Required:
- Vehicle equipped with bidirectional capability
- GM Energy V2H Bundle (~$7,300)
- Compatible inverter and transfer switch
- Properly sized panel and conduit
Total cost installed: roughly $9,000–$14,000 for full backup capability. Comparable to Tesla Powerwall.