Jemma Green, cofounder and chairman of PowerLedger, describes how the company, which won the 2018 Extreme Tech Challenge, spearheaded by Sir Richard Branson and CES, is using tokens to solve various energy problems. One is the principal-agent problem in which the landlords of residential buildings don't have an incentive to install renewables because the tenants are the ones who would recoup the savings. Another is that, as more people install renewables, the grid is becoming less robust and more expensive. She describes the two types of tokens PowerLedger has, how that enables peer-to-peer trading but also involves the utilities, which pilots they have going now, how they're enabling energy asset financing and their work with carbon credits. Thank you to our sponsors! CipherTrace: http://ciphertrace.com/unconfirmed Episode links: PowerLedger: https://www.powerledger.io Jemma Green: https://twitter.com/msjemmagreen PowerLedger wins the Extreme Tech Challenge: https://medium.com/power-ledger/power-ledger-named-winner-in-extreme-tech-challenge-on-necker-island-423bcaa5e082 PowerLedger's pitch at XTC: https://medium.com/power-ledger/xtc-2018-power-ledgers-final-pitch-d69b66a329c6 Australian Financial Review Article that came out after we recorded on how small PowerLedger's uptake is so far: https://www.afr.com/business/energy/how-to-make-and-lose-2-billion-on-blockchain-20181212-h1914w