Large-Scale Commercial Carbon Capture Retrofit of the San Juan Generating Station
Project Information
Prime Performer:  Enchant Energy, LLC Location:  New York, NY
Project Duration:  10/15/2019 – 09/30/2022 Agreement Number:  FE0031843
Technology:  Post-Combustion Capture Total Award Value:  $9,407,105
Key Technology:  Solvents DOE Share:  $7,525,533
Performer Share:  $1,881,572

San Juan Generating Station
San Juan Generating Station

Project Description

Enchant Energy LLC and their partners will perform a Front-End Engineering Design (FEED) study for the retrofit of two coal-fired generating units (847 megawatts-electric [MWe]) at San Juan Generating Station (SJGS) with Mitsubishi Heavy Industries’ (MHI) KM CDR Process™ for carbon dioxide (CO2) capture. Both operating units (Units 1 and 4) are equipped with state-of-the-art environmental controls for nitrogen oxides, sulfur dioxide, particulate matter, and mercury, making the SJGS facility carbon capture-ready from an emissions perspective. The FEED study will document the initial engineering and cost estimates for the retrofit and determine the technical and economic viability of extending the life of the existing SJGS coal-fired power plant through the installation of the advanced amine-based CO2 capture technology. The FEED study will enable SJGS to move forward into detailed engineering, procurement, installation, and operation in future work.

The City of Farmington, currently a part-owner of SJGS, will be jointly responsible with Enchant for site-specific decisions regarding the SJGS. Enchant will manage the CO2 capture retrofit process and will be solely responsible for decision-making related to the overall direction of the project. MHI will provide the engineering and design documents, and costs for the carbon capture island in support of the overall project FEED study.

Project Benefits

FEED studies for carbon capture systems at actual sites will provide the U.S. Department of Energy (DOE) with a more detailed understanding of carbon capture costs in a commercial application, thereby enabling DOE to better design its research and development (R&D) program to reduce those costs for similar carbon capture technologies being developed in its R&D portfolio.

Presentations, Papers, and Publications

Contact Information
Federal Project Manager:  Carl P. Laird (
Technology Manager:  Ronald Munson (
Principal Investigator:  Cindy Crane (