Polestar and Volvo are introducing new bi-directional charging solutions in the U.S. The two automakers now provide vehicle-to-home functionality through dcbel’s Ara system, allowing owners to use their cars as backup power sources, cut energy costs, and optimize home energy management.
Polestar’s package is designed specifically for California customers who can take advantage of state incentives. It features dcbel’s Ara home energy system and lets Polestar 3 drivers lower their charging costs, with the company estimating potential yearly savings of up to $1,300.
The setup also enables the vehicle to serve as a backup power source during outages, with Polestar affirming the car can supply home energy for as long as ten days, depending on consumption.
Developed in collaboration with dcbel, the program combines DC-based vehicle-to-home functionality, outage protection, and smart charging to lower operating costs and enhance renewable energy integration. According to the company, this setup effectively turns the car into a power bank that can even help support the electrical grid while the car is parked.
Polestar also noted that it is advancing further bi-directional initiatives, including an AC home charger for Germany and other upcoming European markets in partnership with Zaptec.
At the same time, Volvo Cars has rolled out bi-directional charging for the 2025 Volvo EX90 in the U.S. The EX90 is the brand’s first model to include the necessary hardware and software for full two-way charging. It can power a home, handle both AC and DC charging via the Ara system, and support household energy needs when needed.
Volvo says the technology can also ease pressure on the power grid by managing charging and energy flow during high-demand periods.
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