Carbon Capture Costs: FEED & pre-FEED Cost Reports

ION Clean Energy, with Nebraska Public Power District, is conducting a FEED study to retrofit a CO₂ capture system on Unit 2 of the 700 MWe Gerald Gentleman Station in Nebraska. Using ION’s low-aqueous ICE-21 solvent, proven in prior DOE-funded projects to reduce energy use, solvent degradation, and emissions, the design will feature two parallel 350 MWe capture units. The project aims to decarbonize most of Unit 2 while maintaining maximum operational flexibility for the plant.

General Electric Gas Power, with Linde, Kiewit, and Southern Company Services, is conducting a FEED study for a “Generation 2” amine-based post-combustion CO₂ capture system at an existing NGCC power plant. Targeting at least 95% capture efficiency, the design will emphasize optimized integration, lower CCS costs, and flexible operation to complement renewable energy. The 18-month project will progress from multiple conceptual designs to a single configuration, culminating in a detailed design, technical viability assessment, techno-economic and life cycle analyses, and a business case evaluation.

Calpine Texas CCUS Holdings LLC, with Electricore Inc., is conducting a FEED study for a modular post-combustion CO₂ capture system at the Deer Park Energy Center NGCC plant in Texas. Using Shell’s commercial-scale amine technology, the system will capture 95% of emissions—about 5 MTPA—while maintaining low energy use and fast reaction rates. The study will include business case, techno-economic, life cycle, environmental, and public policy analyses, including environmental justice and job creation impacts.