Tamsin Lishman joins Bryony this week to talk heat pumps. Tamsin is CEO of Kensa Group, a Cornwall-based manufacturer and installer of ground source heat pumps. Kensa is the UK's only manufacturer of ground source heat pumps. Both air source and ground source heat pumps are rapidly growing technologies, and Tamsin believes that Kensa's heat pumps can - and will - be deployed to electrify domestic heating in the UK. On a recent episode of Cleaning Up, Fatih Birol, Executive Director of the IEA, argued that heat pumps are "the closest thing to a silver bullet" we have in the race to net-zero. In over two decades, Kensa has saved over 1 million tonnes of carbon through ground source heat pump installations. The Kensa Group is partly owned by Legal & General Capital, part of Legal & General PLC, and Octopus Energy. 

Tamsin was appointed CEO of Kensa Group in July 2023. Previously, she had stints at EnergyNest and Centrica. She holds a Master of Engineering from Oxford University.

Green Heat (And Cooling) Under Our Feet - Ep154: Tamsin Lishman

Once a week, Michael Liebreich and Bryony Worthington have a conversation with a leader in clean energy, mobility, climate finance or sustainable development. Informative, inspiring and fun!

Cleaning Up is supported by Capricorn Investment Group.

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China's policies that direct capital towards cleaner industries have been game changing, and this week we're continuing the China theme, sharing two conversations Bryony had earlier this month at a conference at Xiamen University in Fujian Province. China's role in the clean energy transition could not be more important. The think tank Ember's latest report on the state of the global electricity transition states: over half of the world's new wind and solar power capacity last year was added in China, and together with hydro and nuclear, clean electricity in China now meets 35% of their electricity demand. And yet, the scale and the nature of the Chinese economy is so enormous it's hard to grasp, the majority of which is still powered by roughly 1000 gigawatts of coal-fired power stations, half of the global total. The focus of the conference was on a specific lever that could help China further along its decarbonisation path: the repowering of existing coal stations with clean sources of heat.

Ep163: Staffan Qvist & Dr. Yaoli Zhang

In this week's episode of Cleaning Up, we find how much and how much more governments would have to spend for hydrogen to live up to its hype. This audio blog is adapted from a piece Michael wrote at the end of last year for BloombergNEF, entitled "Clean Hydrogen's Missing Trillions", which estimated that hitting the Hydrogen Energy Ministerial target of 90 million tonnes of clean energy by 2030 would require subsidies of at least $2.3 trillion to be on the table right now, while the actual figure at the end of last year was 1/10th of that. Although the figures have changed a bit since then, the message remains the same: the subsidy gap remains in the multiple trillions of dollars. It should not therefore be surprising that the news is full of projects being cancelled and delayed. In fact, that will be one of the main hydrogen stories through to 2030 and beyond.

Audioblog 13: Clean Hydrogen's Missing Trillions

Up this week is Simon Holmes à Court, the Australian investor and philanthropist with a passion for using data to change the world. 

In 2022, the federal elections in Australia delivered an upset, as around a third of the electorate turned their back on the established parties and voted in seven new independent MPs taking the total to 10. Simon was responsible for a crowdfunding initiative - Climate 200 - that supported 23 candidates in all, pledging to act on climate, political integrity and gender discrimination. He remains very involved in the challenge of pivoting Australia from a fossil fuel based economy to a clean energy superpower.

Australia's Political Trim Tab - Ep162: Simon Holmes à Court

How can we build a more united climate movement? What should be the role of geoengineering? And how can indigenous voices be brought into the climate conversation? Bryony puts these questions to model, actor, director, ambassador and businesswoman, Lily Cole.

Lily Cole's Search for Model Climate Solutions - Ep161

Welcome to season 12 of Cleaning Up! If you want a sense of the trajectory of climate action, you have to understand China, and you have to understand finance. There is no one better to share insights on both than Dr Ma Jun, Founder and President of the Institute of Finance and Sustainability in Beijing.

Green Heat (And Cooling) Under Our Feet - Ep154: Tamsin Lishman

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