Jefferson Tester is a professor of engineering at Cornell University, where he is establishing a district heating system on campus. Last year he showed the general design, but now he has completed digging a hole three miles deep there. The rocks at the bottom have a temperature of 90 degrees, so cold water poured down there can be pumped back up at a temperature that can heat every building on campus. We talk about the expense (high!) and the potential for using this technology across the country. For the video, audio podcast, transcript, and comments: https://tosavetheworld.ca/episode-498-more-geothermal-energy.
We produce several one-hour-long Zoom conversations each week about various aspects of six issues we address. You can watch them live and send a question to the speakers or watch the edited version later here or on our Youtube channel.