Bus batteries get second life as photo voltaic power warehouse

What occurs to electrical bus batteries once they retire? A brand new analysis mission in Sweden is resurrecting outdated bus batteries for a brand new function: storing photo voltaic power in condominium buildings. An “power warehouse” at an condominium complicated in Gothenburg consists of 14 batteries that beforehand served the town’s electrical buses. When linked collectively, they create a 200 kWh stationary pack that shops power from photo voltaic panels on the complicated’s roof. The usage of storage helps minimize down the power’s energy consumption peaks, and permits the condominium complicated to promote extra power again to the nationwide grid. Moreover, power will be purchased from the grid at its least expensive worth and saved for later use. “We all know that electrical bus batteries have good potential for different functions reminiscent of power storage after the top of their life in public transport,” mentioned Ylva Olofsson, Undertaking Coordinator at Volvo, one of many firms conducting the analysis mission. “What we're inspecting right here is strictly how good that potential is. Use of the batteries in an power warehouse provides them an prolonged service life which in flip means higher useful resource utilisation and fewer environmental affect.” Supply: Volvo Buses