Bus batteries in the sun

Bus batteries in the sun

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Volvo has lit a research project using electric bus batteries to store solar energy. Volvo Buses is partnering with Göteborg Energi, Riksbyggen and Johanneberg Science Park on an initiative looking at storage in apartment blocks.

The idea is to give used electric bus batteries a second lease of life as solar energy storage units to manage the energy requirements of the Positive Footprint Housing, a new sustainable housing initiative.

The battery-based ‘energy warehouse’ is used to cut the property's power consumption peaks, as well as to store or sell surplus solar energy. It can also be deloyed to buy and store electricity from the national grid when it is cheap and green, for later use.

"We know that electric bus batteries have good potential for other applications such as energy storage after the end of their life in public transport,” says Ylva Olofsson, Project Coordinator at Volvo. “What we are examining here is exactly how good that potential is. Use of the batteries in an energy warehouse gives them an extended service life which in turn means better resource utilisation and less environmental impact.”

Winding up charging

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