How to Power the World 24/7 — Without Oil | Cindy Taff | TED

Deep beneath the Earth sits 50,000 times more energy than all the world's fossil fuel reserves, but accessing it requires using the same controversial technology that oil companies spent trillions to develop: fracking. Cindy Taff left Shell to prove that drilling for geothermal heat instead of hydrocarbons can deliver what solar, wind and fossil fuels can't — clean, renewable power at all times, regardless of weather. Could this be the breakthrough that finally solves our energy challenges? (Recorded at TED Countdown Summit 2025 on June 18, 2025) Join us in person at a TED conference: https://tedtalks.social/events Become a TED Member to support our mission: https://ted.com/membership Subscribe to a TED newsletter: https://ted.com/newsletters Follow TED! X:   / tedtalks   Instagram:   / ted   Facebook:   / ted   LinkedIn:   / ted-conferences   TikTok:   / tedtoks   The TED Talks channel features talks, performances and original series from the world's leading thinkers and doers. Subscribe to our channel for videos on Technology, Entertainment and Design — plus science, business, global issues, the arts and more. Visit https://TED.com to get our entire library of TED Talks, transcripts, translations, personalized talk recommendations and more. Watch more: https://go.ted.com/cindytaff    • How to Power the World 24/7 — Without Oil ...   TED's videos may be used for non-commercial purposes under a Creative Commons License, Attribution–Non Commercial–No Derivatives (or the CC BY – NC – ND 4.0 International) and in accordance with our TED Talks Usage Policy: https://www.ted.com/about/our-organiz.... For more information on using TED for commercial purposes (e.g. employee learning, in a film or online course), please submit a Media Request at https://media-requests.ted.com #TED #TEDTalks #Sustainability