GM Unlocks Bidirectional Charging for Hundreds of Thousands of EVs

General Motors has enabled bidirectional charging capability on 12 of its electric vehicle models through a simple software update, transforming approximately 250,000 GM EVs currently on the road into distributed power resources.

"We can turn every GM EV on the road into a distributed power resource."
— Sterling Anderson, GM's chief product officer

How It Works

The technology, known as vehicle-to-grid (V2G) charging, allows an EV's battery to discharge stored electricity outward—powering appliances, homes, or even feeding energy back into the electrical grid during periods of high demand.

Owners could charge their vehicles when electricity demand and prices are low, then sell electricity back to the grid when demand is high, according to GM.

The Cost Barrier

While the software update is free, using a GM EV for home backup power requires a significant upfront investment:

• Drivers must purchase a $20,000 system from GM Energy
• The equipment requires professional installation
• Local utilities (approximately 3,000 across the U.S.) must approve the equipment
• Utilities must also establish programs that compensate owners for grid contributions

GM states that homeowners typically recoup the upfront cost within about five years.

Current Adoption

Despite the large number of compatible vehicles on the road, adoption remains modest. GM Energy's customer base currently numbers in the "thousands," according to a company spokesperson, who declined to provide more specific figures.

The Bigger Picture

Sterling Anderson explained that V2G charging helps GM address a fundamental question: "How do we make a car more valuable?"

By turning a parked EV into an asset that can generate income or provide emergency backup power, the technology adds a new dimension to vehicle ownership—one that could reshape how consumers and utilities think about the cars sitting in driveways across America.