Australian Power Ledger is championing the new, middleman-less P2P energy trading model by organizing local communities into the so-called “microgrids”--essentially local power grids almost fully autonomous and independent of the national electricity grid. Another company doing this is Grid+, a US startup that has developed an Ethereum-powered blockchain platform that allows consumers to cut out the energy retailer and buy energy directly from producers. #2. WePower: Selling Renewable Energy to Corporates Whereas many energy and tech companies have been generating their own renewable energy, the majority typically buy their renewable energy from a renewable producer through a formal Power Purchase Agreement (PPA).