By extending the batteries’ lives, project developers can save both resources and costs. Hall estimates that a system like B2U’s could lower grid-scale battery capital costs by about 40%. “Second life and re-use helps the overall lifecycle be more energy efficient, given all the efforts that go into making that battery,” Hall said in an interview. “So you’re getting maximum value out of it.” Batteries are worked hard during their years powering vehicles, and over time their range deteriorates. But they still hold value as stationary storage, which has gentler demands, Hall said. The batteries in the B2U system are up to 8-years old and once powered vehicles built by Honda and Nissan.
Read more of this story at Slashdot.