Abstract Offshore oil and gas operations face growing pressure to reduce greenhouse gas (GHG) emissions, and electrification is a key pathway toward this goal. This study evaluates five low-carbon electrification scenarios for a conceptual FPSO typical of Brazil's Santos Basin Pre-Salt region: (i) floating offshore wind; (ii) fixed-bottom offshore wind; (iii) power from offshore wind farm; (iv) partial power from shore and (v) full-electric power from shore. Power and heat demands were estimated from production and injection profiles, with WHRU supplying heat except in the fully electric case. Each scenario was assessed in terms of capital costs, marginal abatement cost (MAC) and emissions reduction potential. Results show that power from shore, particularly the fully electric configuration, offers the greatest emissions abatement and higher operational feasibility, but requires major design changes and high upfront investment. Offshore wind options offer phased adoption of electrification archetypes, though with limited decarbonization due to intermittency.
Dittrich et al. (Tue,) studied this question.