Kathy Hannun is the co-founder and President of Dandelion Energy, the US leader in geothermal heat pumps for home heating and cooling. From an idea emerging at Google X in 2017, Dandelion Energy has now installed over 1,000 geothermal systems and raised a total of $60M.Building heating is a truly massive climate challenge: 20% of emissions globally and up to 40% in the US are due to energy use in buildings, with most of this energy use going to space heating (the rest going to appliances and water heating).In this episode, we talk with Kathy about:her early childhood and what drove her interest in climatehow the Dandelion Energy idea originated at Google X and how it grew into an stand-alone startuphow do heat pumps work and how can they reduce building heating emissions how to scale heat pumps to hundred million of houses<br/>Enjoy the show!To learn more about Dandelion Energy and heat pumps:Introduction to heat pumps (Rewiring America, ~15mn read)Geothermal cost vs. fossil fuel heating (Dandelion Energy, ~15mn read)<br/>

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