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Topic: Deep Decarbonization Pathways Project

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[Episode #245] – Evolving the UK Energy System Part 3

Mar 12 2025

In the first part, Episode #240, we reviewed the UK's unique strategies for procuring energy transition solutions. In the second part, Episode #241, we covered how the nation’s energy regulator is driving investment to support the transition.

To conclude this miniseries, we welcome back Julian Leslie, who first joined us in Episode #174. Julian is now Director of Strategic Energy Planning and Chief Engineer at Britain’s National Energy System Operator (NESO), a recently-created agency tasked with preparing Great Britain's electricity network for net zero operation by 2030. He also coordinates regional and national plans for Britain’s energy system—including gas and emerging heat networks—to meet decarbonization targets.

In this conversation, we review the progress of the innovative Pathfinder programs we discussed back in 2022, which invited the market to provide solutions that could help Britain integrate more wind and solar into its grid. We walk through the extensive process that NESO is undertaking to plan and coordinate the development of a fully decarbonized power grid by 2030. And we discuss in detail how Britain is working to massively expand its capacity in offshore and onshore wind, solar, transmission, and battery storage to meet that goal.

By setting clear decarbonization targets, then collaborating with industry and stakeholders to carry out plans to meet them, the UK is showing the world how to execute a successful energy transition. We hope this miniseries inspires other nations to follow their example.

Guest:

Julian Leslie is Director of Strategic Energy Planning and Chief Engineer at the UK’s National Energy System Operator (NESO). Julian is a chartered engineer with three decades of transmission system operation, planning and investment experience. Julian’s role is to prepare Great Britain’s electricity network for net zero operation, defining future network needs so that market and network owners can invest in the right technology solutions at the right time. Julian is also developing whole energy system plans on a national and regional basis.

On Twitter: @JulianLeslie6

On the Web: Julian’s profile at NESO

Geek rating: 7

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[Episode #131] – Decarbonizing the US by 2050

Sep 30 2020

Mini Episode

Is it possible to decarbonize the economy of the United States, and get to net-zero emissions by 2050? A team of researchers from 15 countries who are part of the Deep Decarbonization Pathways Project think so, based on their deep modeling of the US economy as part of the UN Sustainable Development Solutions Network (SDSN). We introduced this work at a high level in Episode #129, during our conversation with Dr. Jeffrey Sachs, the Director of the SDSN. In this episode, we take a deep dive into the modeling itself with one of the modelers involved in the project. We’ll look at the specific energy technologies, devices, and grid management strategies that will make decarbonization by 2050 possible, and see why they think that decarbonizing the US is not only achievable by 2050, but practical, and very, very affordable.

Geek rating: 9

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[Episode #129] – Deep Decarbonization Policy for the US

Sep 2 2020

Mini Episode

We have seen numerous models showing how a mostly- or fully-decarbonized energy system can work, but how do we actually plot a path from where we are now to a deeply decarbonized energy system in the future? What are the specific policy pathways that we need to follow? And how can we make sure that we’re making the right moves now to put ourselves on those paths?

In this episode, we speak with renowned economist Dr. Jeffrey Sachs of Columbia University about why deep decarbonization must be our goal for the global economy, as well as some of the main pathways to that goal. Based on numerous studies, including the output of the multi-country Deep Decarbonization Pathways Project, as well as several major papers which are in the process of being published under the auspices of the UN Sustainable Development Solutions Network (SDSN), we discuss how energy transition is actually very affordable and practical, and will ultimately deliver a better world on numerous fronts. Dr. Sachs shares with us not only his vision for a global energy transition, but some deep insights, based on his 40 years of study, about the importance of strong leadership in achieving it, and some of the interesting parallels between this moment and the Great Depression.

Geek rating: 3

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