This is the first of a three-part series on emerging energy sources and Texas’ role in developing them. You can read part two, on geothermal energy, here, and part three, on nuclear energy, here.

A concrete platform with fading blue paint marks the birthplace of the modern oil and gas industry in southeast Texas. Weather-beaten signs describe how drillers tapped the Spindletop oil well in 1901, a discovery that launched petroleum giants Texaco, Mobil and Gulf Oil.

Nearby, a red pipeline traces a neat path above flat, gravel-covered earth. French company Air Liquide started building this unassuming facility, with a wellhead and other machinery, on the iconic site in 2014 to store what it believes will be key to an energy revolution: hydrogen.

The ground that once released millions of barrels of oil now holds some 4.5 billion cubic feet of highly pressurized hydrogen. The gas is contained in a skyscraper-shaped cavern that reaches about a mile below ground within a subterranean salt dome.

Hydrogen promoters see the gas as a crucial part of addressing climate change. If it’s produced in a way that creates few or no greenhouse gas emissions, it could provide an eco-friendly fuel for cars, planes, 18-wheelers and ships, and could power energy-intensive industries such as steel manufacturing. Hydrogen emits only water when used as fuel in fuel cells; burning it directly can create nitrogen oxides, which can create haze and acid rain..

If companies can produce clean hydrogen at a price that’s competitive with gasoline or diesel, supporters say it would revolutionize the fuel industry.

That’s a big if.

Hydrogen is among the most common elements in the universe, but on Earth it’s typically found bonded with something else, such as carbon. Today, hydrogen is often obtained by isolating it from methane, a mix of carbon and hydrogen that is the main component of natural gas. This process leaves behind carbon dioxide, which worsens climate change if released into the air.

Engineers say it’s possible to clean up that process by catching the extra carbon dioxide and reusing it — to get more oil out of a well, for example — or injecting it into the earth to store it. Another less polluting method is to split hydrogen from water, which is made up of hydrogen and oxygen, using electricity generated by wind, solar or nuclear power.

Texas has emerged as a leader in producing hydrogen the cheaper way using abundant supplies of natural gas without capturing the carbon dioxide. Air Liquide makes hydrogen at facilities along the state’s coast, from Beaumont to Corpus Christi. More than 100 miles of pipelines move that hydrogen to companies that buy it for processes such as removing sulfur from crude oil.

Little hydrogen is made from gas with carbon capture or from water in the state — or the rest of the country.

BY TEXASTRIBUNE / EMILY FOXHALL, MARCH 25, 2024.