Cleaning Up: Leadership in an Age of Climate Change14 Touko 2025

Can You Run a Grid Entirely On Renewables? Ep208: Anders Lindberg

Can You Run A Grid Without Fossil Fuels?

"Yes," says Anders Lindberg, President of Energy and Executive VP at Wärtsilä, on this week's episode of Cleaning Up. It'll just cost €65 trillion extra by 2050.

Anders' team at Wärtsilä has recently published its Crossroads to Net Zero report, which argues that keeping a little bit of flexible generation on the grid will save huge amounts of money as the globe strives for net zero, while also speeding up the transition to renewables. The argument centres on what to do with the last few percent of power supply, and what forms of generation need to be built to ensure consistent electricity supply and prevent black or brown outs.

Perhaps unsurprisingly for a gas engine manufacturer, Wärtsilä's report makes the case that gas should provide the last few percentage points of electricity generation. Michael Liebreich puts that claim to the test.

Discover more:

Wärtsilä's Crossroads to Net Zero report: https://www.wartsila.com/energy/towards-100-renewable-energy/choosing-the-optimal-pathway-for-energy-transition
Can Germany’s Gas Giant Go Green? Ep206: Michael Lewis - https://www.youtube.com/watch?v=DOD-f6uSPgc
Q&A: What we do – and do not – know about the blackout in Spain and Portugal — https://www.carbonbrief.org/qa-what-we-do-and-do-not-know-about-the-blackout-in-spain-and-portugal/
ENTSO-E expert panel initiates the investigation into the causes of Iberian blackout: https://www.entsoe.eu/news/2025/05/09/entso-e-expert-panel-initiates-the-investigation-into-the-causes-of-iberian-blackout

Leadership Circle:

Cleaning Up is supported by the Leadership Circle, and its founding members: Actis, Alcazar Energy, Davidson Kempner, EcoPragma Capital, EDP of Portugal, Eurelectric, the Gilardini Foundation, KKR, National Grid, Octopus Energy, Quadrature Climate Foundation, SDCL and Wärtsilä. For more information on the Leadership Circle, please visit https://www.cleaningup.live.

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Beyond Net Zero - Ep50: Lord John Browne

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Pushing Planetary Boundaries - Ep49: Johan Rockström

Johan Rockström is Director of the Potsdam Institute for Climate Impact Research (PIK) and Professor in Earth System Science at the University of Potsdam.He is an internationally recognized scientist ...

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Planetary Crisis? Call an Economist! - Ep48: Nick Stern

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Open to Innovation - Ep47: Gina Domanig

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California's Clean Energy Dream - Ep46: Angelina Galiteva

Angelina Galiteva has been appointed Chair of the California Independent System Operator’s Board of Governors in 2020, after a decade spent on the Board as a member. Angelina is the founder & Chair o...

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