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Can green hydrogen save a coal town and slow climate change?
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Can green hydrogen save a coal town and slow climate change?

Developers in rural Utah who want to create big underground caverns to store hydrogen fuel won approval for a $504 million federal loan this spring.

Science & Tech

DELTA, Utah – The coal plant is closing. In this tiny Utah town surrounded by cattle, alfalfa fields and scrub-lined desert highways, hundreds of workers over the next few years will be laid off — casualties of environmental regulations and competition from cheaper energy sources.

Yet across the street from the coal piles and furnace, beneath dusty fields, another transformation is underway that could play a pivotal role in providing clean energy and replace some of those jobs.

Here in the rural Utah desert, developers plan to create caverns in ancient salt dome formations underground where they hope to store hydrogen fuel at an unprecedented scale. The undertaking is one of several projects that could help determine how big a role hydrogen will play globally in providing reliable, around-the-clock, carbon-free energy in the future.

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What sets the project apart from other renewable energy ventures is it’s about seasonal storage more than it’s about producing energy. The salt caves will function like gigantic underground batteries, where energy in the form of hydrogen gas can be stored for when it's needed.

“The world is watching this project,” said Rob Webster, a co-founder of Magnum Development, one of the companies spearheading the effort. “These technologies haven’t been scaled up to the degree that they will be for this."

In June, the U.S. Department of Energy announced a $504 million loan guarantee to help finance the “Advanced Clean Energy Storage” project — one of its first loans since President Joe Biden revived the Obama-era program known for making loans to Tesla and Solyndra. The support is intended to help convert the site of a 40-year-old coal plant to a facility that burns cleanly-made hydrogen by 2045.

Amid polarizing energy policy debates, the proposal is unique for winning support from a broad coalition that includes the Biden administration, Sen. Mitt Romney and the five other Republicans who make up Utah’s congressional delegation, rural county commissioners and power providers.

Renewable energy advocates see it as a potential way to ensure reliability as more of the electrical grid becomes powered by intermittent renewable energy in the years ahead.

In 2025, the initial fuel for the plant will be a mix of hydrogen and natural gas. It will thereafter transition to running entirely on hydrogen by 2045. Skeptics worry that could be a ploy to prolong the use of fossil fuels for two decades. Others say they support investing in clean, carbon-free hydrogen projects, but worry doing so may actually create demand for “blue" or “gray” hydrogen. Those are names given to hydrogen produced using natural gas.

"Convincing everyone to fill these same pipes and plants with hydrogen instead (of fossil fuels) is a brilliant move for the gas industry," said Justin Mikula, a fellow focused on energy transition at New Consensus, a think tank.

Unlike carbon capture or gray hydrogen, the project will transition to ultimately not requiring fossil fuels. Chevron in June reversed its plans to invest in the project. Creighton Welch, a company spokesman, said in a statement that it didn’t reach the standards by which the oil and gas giant evaluates its investments in “lower carbon businesses.”

As utilities transition and increasingly rely on intermittent wind and solar, grid operators are confronting new problems, producing excess power in winter and spring and less than needed in summer. The supply-demand imbalance has given rise to fears about potential blackouts and sparked trepidation about weaning further off fossil fuel sources.