Carbon Capture Costs: FEED & pre-FEED Cost Reports

The University of Texas at Austin, with AECOM Technical Services and Trimeric Corporation, is conducting a FEED study for the Piperazine Advanced Stripper (PZAS) CO₂ capture process at Golden Spread Electric Cooperative’s Mustang Station in Denver City, Texas. Designed for two GE gas turbines with HRSGs and a steam turbine totaling 464 MWe, the PZAS process uses 30 wt% piperazine for higher efficiency, solvent stability, smaller absorber size, and cost savings compared to conventional amine systems. The project will deliver a 30–60% complete design package and a capital cost estimate with ±15% accuracy.

The Peterhead CCS Project in Aberdeenshire, Scotland, was designed to demonstrate the world’s first commercial-scale post-combustion CO₂ capture from a gas-fired power station. Using amine-based CANSOLV technology, it aimed to capture around one million tonnes of CO₂ annually from one turbine at SSE’s Peterhead Power Station, compress and condition it, and transport it via a new offshore pipeline for injection into the depleted Goldeneye gas reservoir over 2 km beneath the North Sea. The FEED study defined project scope, refined CAPEX and OPEX estimates, and assessed cost uncertainties, providing a basis for the Execute phase while also documenting budget performance and emergent costs during FEED.

Milton R. Young Station Unit 2 is conducting a FEED study to add a post-combustion CO₂ capture system using Fluor’s Econamine FG Plus™ technology to its lignite-fueled power plant in North Dakota. The design targets 3.6 million tonnes of CO₂ captured annually—twice the scale of the largest existing facility—while integrating advanced heat recovery, aerosol and solvent degradation controls, and cold-climate optimization to achieve the lowest levelized cost of capture at world scale. The study will deliver detailed design, cost, and performance data for financing, permitting, and final project scheduling.