The top 25 entries were announced over the summer, with the five finalists named in September.
What can they win?
ChargBnB aims to make these stations more accessible by creating what it calls the AirBnb of EV charging.
Mimbly: Swedens finalist aims to address several environmental issues related to doing laundry with a single rig.
Micro-plastic tire wear particles are a leading cause of ocean pollution and a contributor to air pollution.
The captured particles can even be reused to manufacture new tires.
The heat exchanger is placed on the floor of the shower, where it captures heat from hot wastewater.
