A pre-study of a concept for power production offshore on abandoned platforms shows that a net delivered 300 MWe combined cycle power plant and a CO2 sequestering plant can be located on a single Condeep platform. By replacing the present gas turbine power production on neighbouring oil fields, the CO2 emissions will be reduced by 1.6 Mt per year, corresponding to 4.4% of the total Norwegian emissions. The concept appears to be both technically and economically feasible.