LO3 Energy’s CEO and co-founder Lawrence Orsini stands on a rooftop in the New York City borough of Brooklyn next to solar panels connected to startup the company’s TransActive Grid in this undated picture. New York-based LO3 Energy hopes that through its blockchain-based system TransActive Grid, project participants will soon be able to sell the excess solar energy they produce to neighbours. (Courtesy: LO3 Energy/Handout via TRF)