Carbon Capture Costs: FEED & pre-FEED Cost Reports

Electric Power Research Institute (EPRI), with Fluor Corporation and California Resources Corporation (CRC), conducted a FEED study to assess the feasibility of retrofitting Fluor’s solvent for post-combustion CO₂ capture at the 550 MW Elk Hills NGCC power plant. The system aims to capture approximately 4,000 tonnes of CO₂ per day (75% of total emissions, or 90% of an 83% slipstream), with the captured CO₂ intended for enhanced oil recovery. Deliverables include the full engineering design package—such as process flow diagrams, equipment datasheets, and capital cost estimates—optimized for site-specific performance, operations, and construction practices.

This report summarizes Trimeric’s Phase II work under the SSEB ECO2S project in Kemper County, Mississippi, focused on Task 7 – Infrastructure Development. Trimeric evaluated CO₂ compression and dehydration costs, compared pumping versus compression for dense phase CO₂, and developed pipeline transport cost estimates. Using experience from past projects, screening-level designs and cost estimates were prepared for a nominal 1 MTPY case and scaled to site-specific conditions. Results showed that increasing discharge pressure modestly raises costs, with pumping offering slight savings and operational flexibility but added complexity. Pipeline costs were estimated using NPC benchmarks, while compression and dehydration costs were scaled for Plant Daniel, Plant Miller, and Kemper. Overall, capital costs were roughly three times equipment costs, with electricity for compression as the dominant operating expense. The costs are associated with Six-stage compression directly to 2,050 psig

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.