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The agreement would accelerate development of the largest fully permitted carbon storage site in the United States.

Minnkota Power Cooperative and Summit Carbon Solutions have agreed to co-develop carbon dioxide storage facilities near Center, North Dakota.

The partnership builds on development already in the works. Minnkota and Summit have been working independently on developing their respective carbon capture and storage projects.

Minnkota’s Project Tundra aims to install carbon capture technologies at the Milton R. Young Station in North Dakota. The station is a two-unit, 705-MW lignite coal-burning plant. Unit 1 became operational 50 years ago, while Unit 2 began generating electricity seven years later. It is a primary generating facility for Minnkota, which hopes carbon capture could contain up to 90 percent of the carbon dioxide emissions from the Unit 2 generation.

Iowa-based Summit Carbon Solutions aims to capture and permanently store CO2 from dozens of ethanol plants across five states in the Upper Midwest.

The agreement gives Summit access to Minnkota’s already permitted 100-million-ton capacity CO2 storage site, the largest of only three such permitted sites in the United States. It also creates the framework to jointly develop additional CO2 storage resources nearby, which could hold more than 200 million tons.

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