BISMARCK, N.D. — A multistate carbon capture pipeline began operating in September, helping reduce emissions from Midwest ethanol plants and carrying that carbon dioxide to be forever buried underground in Wyoming.

Meanwhile, intense opposition has hounded similar projects, including one that has run up $1 billion in spending with no guarantee of success. But Tallgrass’ Trailblazer pipeline is being praised because of community negotiations and financial support.

“I wish all energy companies would treat communities with a lot more respect like Tallgrass did,” said Jane Kleeb, whose group Bold Nebraska has fought other carbon capture and oil pipelines.

The Tallgrass pipeline has started moving emissions from 11 ethanol plants in Nebraska and one in Iowa to a site in southeast Wyoming, where the greenhouse gas will be buried 9,000 feet underground.

The fermentation process to convert corn into fuel releases carbon dioxide. By capturing the gas before it’s released into the air, plants can lower their carbon intensity score, making ethanol more attractive for refinement into so-called sustainable aviation fuel — a market some believe could climb to 50 billion gallons annually. The Midwest-based ethanol industry sees jet fuel as essential to its future, offsetting expected declines in demand for motor vehicle fuel as more drivers switch to electric vehicles.

The federal government encourages carbon capture through lucrative tax credits to pipeline operators. The Biden administration wanted to encourage a practice that could reduce greenhouse gas emissions and the Trump administration has let the credits continue.

“If an ethanol plant captures the carbon, it lowers their carbon index and they become a low-carbon fuel, and there’s a premium for that,” said Tom Buis, CEO of the American Carbon Alliance, a trade group. “And they can also produce sustainable aviation fuel out of it. Sustainable aviation fuel is a huge, gigantic market just waiting for someone to step forward and take it.”

At least three other companies have proposed carbon capture pipelines in the Midwest, but aside from Tallgrass, only Iowa-based Summit Carbon Solutions is persisting — and it hasn’t been easy.

Summit has proposed a multibillion-dollar, five-state network encompassing dozens of ethanol plants, thousands of miles of pipe and underground storage in North Dakota.

Despite strong support from agricultural groups and the ethanol industry, Summit has dealt with persistent opponents who don’t want their land taken for the pipeline and fear a hazardous pipe rupture. Landowners sued to block the pipeline and sought help from legislators. The South Dakota Legislature banned the use of eminent domain for such lines.

In response Summit has asked Iowa regulators to amend its permit so the company retains an option for a route that would avoid South Dakota.

“Our focus remains on supporting as many ethanol partners as possible and building a strong foundation that helps farmers, ethanol plants, and rural communities access the markets they’ll depend on for decades to come,” Summit stated.

The U.S. Environmental Protection Agency oversees a rigorous process for underground carbon dioxide injection, involving permits for construction and injection and regulations to protect underground sources of drinking water, Carbon Capture Coalition Executive Director Jessie Stolark said. Typically, porous rock formations like a sponge will store or trap the carbon dioxide more than a mile underground, she said.

Tallgrass had one big advantage at the starting point — it converted an existing natural gas line. The natural gas was sent to a different pipeline as Trailblazer was retrofitted. The company built branches off the 400-mile mainline to connect to ethanol plants.

But Tallgrass also took pains to engage with communities along its route.

The company worked with people to get its project done “instead of trying to push it down our throat,” said Lee Hogan, chairman of the Adams County commission in Nebraska. His home is half a mile from the pipeline.

Tallgrass benefited from working with Bold Nebraska, a citizens group, to create a community investment fund that will make annual payments to organizations related to early childhood development, Medicaid-eligible senior care and food pantries.

Tallgrass will make an initial $500,000 contribution followed by annual payments based on 10 cents per metric ton of carbon dioxide sent through the pipeline. The Nebraska Community Foundation, which will manage the fund, expects more than $7 million will be given out through 2035 across 31 counties in four states.

It’s a unique arrangement, and a possible template for future projects, Nebraska Community Foundation leader Jeff Yost said.

“I’m just really impressed that folks that could have just approached this purely as opponents have come together to find a really productive middle ground,” Yost said.

Tallgrass spokesman Steven Davidson said the investment fund is just one piece of the company’s agreement with Bold Nebraska, which he said emphasizes being cooperative and transparent, such as when surveying land and valuing easements.

While lauding Tallgrass’ cooperative approach, Jack Andreasen Cavanaugh, who studies energy policy at Columbia University, said it may be hard to replicate the experience since few if any natural gas pipelines will be available for retrofitting, given increases in supply and demand for natural gas domestically and abroad. Tallgrass’ line crosses his family’s land in Nebraska.

Still, companies can do better to engage and negotiate with communities, and that includes spending money, he said.

Kyle Quackenbush, a Tallgrass vice president, said his advice to other pipeline companies is to listen.

“I think the biggest advice we would have for people is to take those concerns seriously,” he said, “and figure out what it takes to be able to help people get comfortable and understand that this infrastructure is a benefit for their community and not something that they need to be afraid of.”

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