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The Future is Electric

The Future is Electric is the house journal of TFIE Strategy Inc, a firm which assists global clients to future proof themselves in our rapidly changing world of business and technical innovation, and geopolitical and climate disruption.

ChatGPT generated landscape artistic view of a hospital, brewery, and industrial facility connected to a moderate-depth geothermal heat network

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Drilling Into the Heat Beneath: A Realistic Look at Geothermal’s Potential and Pitfalls

Simon Todd of Causeway Energies on what works, what doesn’t, and why moderate-depth heat will win

27 min readJun 15, 2025

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Recently, I had the opportunity to sit down Simon Todd, PhD geologist, founder of Causeway Energies, and expert on geothermal. This is the transcript of the second half of our conversation, lightly edited.

Michael Barnard [MB]: Hi, welcome back to Redefining Energy — Tech. This episode is powered by TFIE Strategy, guiding investors toward climate-smart bets that will win in the real world and the market. I’m your host, Michael Barnard, and my guest today is Simon Todd, Managing Director of Causeway Energies, a Ph.D. in geology and an expert in geothermal energy. This is the second half of our conversation, spanning the very useful, the more speculative, and the more science fiction aspects of the space.

There are two or three things I’d like to pull out of that because they’ll become important in about 10 minutes. That’s a…

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The Future is Electric
The Future is Electric

Published in The Future is Electric

The Future is Electric is the house journal of TFIE Strategy Inc, a firm which assists global clients to future proof themselves in our rapidly changing world of business and technical innovation, and geopolitical and climate disruption.

Michael Barnard
Michael Barnard

Written by Michael Barnard

Climate futurist and advisor. Founder TFIE. Advisor FLIMAX. Podcast Redefining Energy - Tech.

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