Could Old Coal Plants be Reborn?

December 3, 2020

Photo by Ernest Kyed

Across the country and the world, coal fired power plants are being shut down and abandoned. This usually means that a community is losing not only a stable source of jobs, but vital revenues that undergird local economies.
Could potential blight become opportunity? Some Utilities are thinking out of the box.

Lincoln Bleveans in Utility Dive:

Lincoln Bleavens is an interim general manager at Burbank Water and Power.

..Burbank Water & Power in California, is managing a long-term commitment to a large coal-fired power plant in rural Delta, Utah, while we race towards a zero-GHG future. And not just by abandoning the old for the new. Together with our neighbors Los Angeles and Glendale and our partners in Utah, we’re bringing that old coal-fired power plant (and its local and regional ecosystem) along into the sustainable future. Even though we will retire the coal plant itself in 2025. We’re committed and the world is watching. But to what? And when and why and how?

You see an old coal plant and an obsolescent workforce; I see a superb opportunity for green hydrogen. Green?Hydrogen? Let’s start with hydrogen. Hydrogen is the most abundant element in the universe but just coming into its own as a versatile fuel for a world moving away from hydrocarbons. Capturing hydrogen is simple in theory: just apply a lot of energy to water to break the two H’s (hydrogen) from the O (oxygen) to create pure hydrogen. Like natural gas, that hydrogen contains heat that can be released with combustion to drive a generator. Unlike natural gas, that combustion is GHG-free.

The technology is proven. Until now, though, the cost of that energy has kept hydrogen from widespread adoption. That’s changing fast; it’s also the “green” in “green hydrogen.” In the Age of Renewables, electricity is increasingly abundant and cheap (or free or even negatively priced, as in you get paid to take it) when solar power dominates the midday grid. Turbine generators currently powered with natural gas are shifting to green hydrogen, which is being hailed as the holy grail of a zero-GHG power system. Those generators, repowered with hydrogen, offer renewable dispatchable electricity, turning intermittent renewables like solar and wind into a reliably supply.

Back in Delta, Utah, I see an industrial site and a community ready for redevelopment. I see a skilled and experienced industrial workforce ready to build, operate, and optimize complex systems. I see transmission lines to bring in the renewable energy needed for green hydrogen production. And I see the water rights, in mind-boggling amounts, that are a prerequisite for both today’s coal-fired power generation and tomorrow’s green hydrogen production.

That transformation is already underway in Delta. We are replacing the coal plant with state-of-the-art natural gas turbines ready for 30% green hydrogen co-firing right off the bat. Those turbines and the rest of the plant are being future-proofed, engineered by turbine manufacturer Mitsubishi Power to be ready for each technological advancement, step-by-step, to 100% green hydrogen by 2035. (Mitsubishi is no outlier in this regard: General Electric is on a similar innovation path for its machines.)

That green hydrogen, in turn, will be produced on-site using renewable energy (especially that midday solar) imported by the same transmission lines that now export power to California, Utah, and Nevada. Soaking up that excess solar power, in turn, helps the entire Western electric grid keep costs down and reliability up. And the workforce is top-notch: coal plants are complex and demanding and they are the best in the business. But the key is water. The coal plant currently uses up to 26 million gallons every day to generate electricity but has rights to far more. That’s a lot of low cost, zero-GHG green hydrogen. That’s also a lot of skilled jobs and tax revenue: the durable foundation for thriving, hard-working communities.

Now pan back from Delta to other 350-plus coal-fired power plants dotting the map of the US. Every one of those dots represents communities, economic ecosystems, workforces, water, and transmission surrounded by ever-increasing renewables. Every one of those dots can be an opportunity to flip the script: rather than left behind, they can be hubs for a thriving and inclusive transition to a zero-GHG future. Pan back even further to the 2400-odd coal plants in the world.

Do you see what I see? Let’s transition to a sustainable future together.

4 Responses to “Could Old Coal Plants be Reborn?”

  1. rhymeswithgoalie Says:

    I’d make sure I had no liability for the state of the site before I invested in one, especially if it predates most scrubber tech.

  2. Brent Jensen-Schmidt Says:

    This November (spring), the state of South Australia ran for an hour or so on 100% PV solar, on two separate days. Excess power was successfully exported interstate.

    The good news is obvious as is the bad with some thinking thru. We officially get 10% of electricity from PV. So in the scenario of 100% renewables we pick = 30% of it it to be PV. This means, in this situation, that production will be 300% of that required. (Plus what ever the other renewables happen to be putting out.) Having enough electric motors to utilize that excess is a trifle problematical. Most of it will be wasted buggaring the overall supply. Contemplate this concept.

    Note. The post is he best application of hydrogen power have seen in half a century.

  3. […] Useful primer on where we are with H2.Relates to previous post about new life for old coal plants – here. […]

  4. Want to bring old coal plants back to life without CO2? They make excellent locations for nuclear plants. The very knowledgeable Rod Adams has a rather optimistic take on the various new designs. At 20 minutes in, he talks about how Nuscale’s designs can fit into existing coal plant sites:

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