The renewable energy source beneath our feet

Bernard Hickey drills down into the future of geothermal electricity production in this week’s interview with Isabelle Chambefort from GNS Science. She’s excited about the potential for deep drilling to uncover ‘supercritical’ heat that supercharges geothermal power output, helping solve the dry year problem bedevilling or hydro dominated power system.
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When the Facts Change, Hosted by journalist Bernard Hickey, When the Facts Change is your essential weekly guide to the intersection of economics, business and politics in Aotearoa New Zealand. Presented by The Spinoff.

When the Facts Change is currently on hiatus and is open for sponsorship. For more details, contact [email protected]

• No. of episodes: 253
• Latest episode: 2025-07-10
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