Sweden Launches Largest Bidirectional Charging Project

Why this is here: Sweden has over 70,000 V2G-capable vehicles from Volkswagen, Skoda, and Cupra—a fleet equivalent to the average output of a nuclear reactor.

Klas Boman, a resident of Hudiksvall, Sweden, initiated a project now resulting in the country’s largest pilot program for bidirectional charging. About 200 households and businesses in electricity zones 3 and 4 will participate in the two-year trial. Volkswagen, Vattenfall, and Energy Bank collaborate on the project, which allows electric vehicle batteries to both charge and deliver energy back to buildings or the grid.

The Stenberg housing cooperative in Hudiksvall tested eight bidirectional chargers and eight electric vehicles. They saved over 26 percent on electricity costs from September 2025 to March 2026 using the system. Energy Bank’s software continuously analyzes energy needs, electricity prices, weather, and grid status to optimize battery charging and usage.

A commercially available charger with the software will cost roughly 20,000 Swedish kronor after a green technology grant. While the software requires further refinement, Energy Bank plans a commercial launch this fall. Boman notes a challenge remains in establishing a universal system, as manufacturers currently build separate ecosystems for their vehicles and chargers.