CITRES Digest

From the Editor

Welcome to the first issue of the CITRES Digest. The energy transition generates more news than anyone can follow and less understanding than anyone needs. This digest is an attempt to close that gap: a few times a year, we select the developments that matter most (a plant closing, a program launching, a number crossing a threshold) and ask what they actually mean for the engineering, the finance, and the fairness of the transition. It is an edited record, not a news wire: fewer items, more context, and a standing invitation to disagree with our selections.

There could be no more fitting month to begin than September 2024: the month the country that started the coal age ended it. Our first feature examines how a 142-year era closed on schedule and with the lights on, and what the two decades behind that moment teach. Our second looks at the opposite end of the transition's timeline: the United States writing its largest-ever check to decarbonize the industries where the hardest work has barely begun.

Chaofeng Wang, Editor

The End of an Era: The UK Retires Coal Power

At midnight on September 30, 2024, the Ratcliffe-on-Soar power station in Nottinghamshire, England, completed its final shift and came off the grid for the last time. The closure of the 2,000-megawatt plant, the United Kingdom's last operating coal-fired power station, ends 142 years of coal-generated electricity in the country that sparked the Industrial Revolution. The era that opened in January 1882, when the world's first coal-fired public power station began lighting streets at Holborn Viaduct in London, closed a few hours' drive north, in a control room where operators pressed the stop button on purpose, ahead of schedule, and to applause. The UK becomes the first G7 economy to phase out coal power entirely.

How a 142-year era actually ended

The remarkable part is not that it happened but how fast the end came once policy made it inevitable. As recently as 2012, coal still supplied roughly 39 percent of British electricity. Then came a sustained policy squeeze: a carbon price floor introduced in 2013 that made coal generation progressively uneconomic, a 2015 government announcement that unabated coal would be gone by 2025, and a 2021 decision to pull that deadline forward to October 1, 2024. Wind and solar filled the space coal vacated, the grid recorded its first coal-free day in 2017, the first since 1882, and by its final years coal was supplying barely one percent of the country's power. Ratcliffe-on-Soar, which at its peak could power two million homes, received its last coal delivery in the summer of 2024 and spent its final months running down the stockpile.

What closes with the plant

A phase-out that looks clean in the aggregate statistics is granular on the ground. Around 170 employees remained at Ratcliffe-on-Soar at closure; operator Uniper says many will stay on through a decommissioning process expected to take about two years, followed by demolition and redevelopment of the site, which regional plans envision as a hub for zero-carbon industry. That sequence (closure, transition support, site reuse) is the entire community-transformation problem in miniature, and how well it goes in Nottinghamshire will be studied for years.

Why it matters beyond Britain

For researchers, the UK's coal exit is a live case study in the questions this digest exists to track. How does a grid replace two gigawatts of firm capacity with storage, interconnection, and flexible demand, and what does reliability cost without coal's inertia? What happens to the workforce and the tax base of a plant town? And how much of a two-decade phase-out driven by carbon pricing and deadline-setting transfers to economies still building coal plants, or to the heavy industries (steel, cement, chemicals) where the transition has barely begun? Coal power was the easy chapter, written over twenty years with policy persistence. The harder chapters are the subject of our next story.

By the Numbers

The US Bets $6 Billion on Industrial Decarbonization

While the UK closed the book on coal power, the United States this year opened a new chapter on the sectors that electricity policy alone cannot reach. In March, the US Department of Energy selected 33 commercial-scale projects to share up to $6 billion under its Industrial Demonstrations Program, the largest federal investment in industrial decarbonization to date, funded through the Bipartisan Infrastructure Law and the Inflation Reduction Act. With matching private investment, the portfolio represents more than $20 billion of committed capital across more than 20 states, aimed at the hard-to-abate sectors: iron and steel, cement and concrete, chemicals, aluminum, glass, paper, and industrial heat, the core of an industrial sector responsible for roughly a third of US greenhouse gas emissions.

Where the money goes

The program's design choice is to fund first-of-a-kind at full scale rather than pilots. Cement and concrete drew the largest share, roughly $1.6 billion: Heidelberg Materials' plant in Mitchell, Indiana, is slated to become one of the world's first full-scale cement plants with carbon capture and storage, while Sublime Systems will build a commercial plant in Massachusetts making cement by electrochemistry instead of kilns. In steel, Cleveland-Cliffs will replace the blast furnace at its Middletown Works in Ohio with a hydrogen-ready direct reduced iron plant, a template for decarbonizing primary steelmaking without abandoning a century-old steel town. Taken together, DOE estimates the projects will avoid some 14 million tonnes of CO₂ per year.

The evidence machine

The dollars matter less than what they will prove, or fail to. Each of these demonstrations is a test of a technology, a financing structure, and a community agreement at the same time, and the results will generate exactly the evidence that use-inspired research needs: which processes scale, what the real capital and operating costs are, how labor agreements and community benefits are negotiated, and what policy support the economics still require once the federal check is spent. The coming years will separate the templates from the one-offs. We intend to follow the projects in these pages as they break ground.

Briefly Noted

The Network, One Year On

CITRES connects 14 researchers at four US universities and 18 researchers at three UK universities across six approaches: innovative financing, fundamental research, system strategy for heavy industry, education, AI and data-driven methods, and DEIA. Last July, the network convened its first Mini-Symposium at the University of Florida, where fourteen speakers from US and UK institutions spanned topics from net-zero engineering and energy storage materials to smart energy systems and urban digital twins.

Looking Ahead: COP29 in Baku

The world's climate negotiators convene in Baku, Azerbaijan, from November 11–22 for a COP already dubbed “the finance COP.” The centerpiece is the New Collective Quantified Goal (the successor to the $100-billion-a-year climate finance pledge that developed countries met two years late), and the gap to be bridged is measured in trillions, not billions. Whatever number emerges will shape how fast the developing world can finance its own coal exits and industrial transformations. Finance is where ambition meets arithmetic, and we will report on what Baku delivers in our next issue.

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