An electric car battery will degrade over time to the point where it can’t hold enough charge. When battery performance drops below around 70% of its original capacity, it can no longer power a car effectively, and will need to be replaced, either by the car’s manufacturer or a qualified specialist.
The battery can then be repurposed in a variety of ways. Some batteries can be used to power homes and buildings, or connected to solar energy panels to help lower your household bills.
If you have solar panels on your house, a used electric car battery can be added to an existing battery storage system. Energy generated from the panels in the day can be stored for future use, for example at night.
Research in this field is progressing quickly, and new initiatives are emerging to reuse electric car batteries in ever-more creative ways. These include providing power for mobile electric car charging stations, as backup energy sources for large entertainment venues, and powering infrastructure such as street lights.