Ford cars to interact with power grids

America's second-largest automaker released details of a two-year collaboration with about a dozen utility companies.

Ford Motor Co. said Tuesday its future electric cars will "talk" to power grids across the US, part of an effort to drive interest in alternative-energy vehicles. America's second-largest automaker released details of a two-year collaboration with about a dozen utility companies as well as the Department of Energy on the design of a system that allows car owners to control when they charge vehicles and for how long. Owners can choose to recharge at off-peak times when electricity is cheaper, or when wind, solar or renewable energy is driving the grid, Ford said.