General Motors (GM) is stepping up its game in the energy storage market with the launch of its new Energy PowerBank, designed to compete directly with Tesla‘s Powerwall. This battery pack offers energy storage solutions for homes, particularly for EV owners looking to manage their electricity consumption more efficiently.

The Energy PowerBank, available in two capacities—10.6 kWh and 17.7 kWh—allows users to store electricity from the grid or from home solar panels. It can provide backup power during outages and help reduce electricity costs by allowing users to consume stored power during peak times when rates are higher. GM’s modular design also makes it possible to pair two of the 17.7 kWh units together, which can power the average American home for up to 20 hours.

Pricing is competitive, with the Energy PowerBank available in two bundles: the GM Energy Storage bundle at $10,999 and the more comprehensive GM Energy Home System bundle at $12,700, which includes additional features like a bi-directional EV charger. Tesla’s Powerwall 3, in comparison, offers a single capacity of 13.5 kWh and costs around $9,300 for the base unit, but both brands allow for scalability by combining multiple units for greater storage.

One key advantage GM highlights is the integration of their Energy PowerBank with their electric vehicles (EVs). The system supports vehicle-to-home (V2H) and vehicle-to-grid (V2G) technologies, which enable homeowners to use their EVs as an additional power source or to even sell excess energy back to the grid.