How the EV V2G Revenue Calculator Works
Vehicle-to-Grid (V2G) technology lets you sell power stored in your EV's battery back to the grid or use it to offset your home's electricity bill. This calculator takes your total battery capacity, the percentage you're willing to discharge for sale, the price you're paid per kWh, and how many times per month you plan to discharge, then estimates the power sold per cycle and your monthly and annual revenue.
The sellable discharge ratio is the portion of your battery you're willing to use for power sales while keeping the rest for daily driving — many owners set this around 20-40%. The sell price depends on your local energy market program or the value of the electricity you're offsetting at home.
Keep in mind this is a simplified estimate. Real-world returns also depend on the cost of installing V2G-capable charging equipment, how your energy program settles payments, and the long-term cost of any added battery wear. If you're considering V2G, check first whether your vehicle supports it and what a bidirectional charger installation will cost.
Frequently Asked Questions
Yes, more discharge cycles can accelerate battery degradation somewhat. However, modern V2G-capable battery management systems are designed to limit discharge depth and rate to minimize that impact.
No. You need both a V2G-capable vehicle and a bidirectional charger that supports it. Check your vehicle manufacturer's specs and the charging infrastructure you plan to install first.