The environmental potential of using radio frequency energy to charge or power devices is considerable. "We're basically recycling energy which is at present going to waste, so that's a good thing environmentally," Drayson said.
"Secondly, it will mean fewer batteries," he added. "That's what we see as the main environmental benefit from this, is that batteries will last longer or will not need to be replaced and that's a real win in terms of the disposability of those devices, those batteries."
According to the Natural Resources Defense Council (NRDC), the impact of batteries – as well as devices such as cell phones and computers – is significant. These kinds of items contain harmful, toxic heavy metals such as mercury and lead.
According to the NRDC, when thrown away these objects can end up in landfill sites and their toxic compounds, "can leach into soil and water, polluting lakes and streams."
Applications of the Freevolt technology include powering low energy internet of things devices, beacons in supermarkets and shops, and wearable tech. Freevolt has been used in the CleanSpace Tag, which is described as "a personal air quality pollution sensor."