Most efforts to harness multiple energy sources so far have employed switching to the source which provides most energy at that moment, but a group of researchers at MIT developed a system able to combine energy from multiple sources by switching rapidly between them. The  system could to be used in new battery-free monitoring systems… »

Although many gardeners treat moss as a menace and tend to eradicate it from their lawns, a team of designers and scientists at the University of Cambridge are developing a way to harness energy from moss by using it as biophotovoltaics (BPVs). BPV devices may become competitive alternatives to conventional renewable technologies such as bio-fuels… »