  The ambitious CO2 emission targets of the Paris agreements are achievable
only with renewable energy, CO2-free power generation, new policies, and
planning. The main motivation of this paper is that future green fuels from
power-to-X assets should be produced from power with the lowest possible
emissions while still keeping the cost of electricity low. To this end we
propose a power-to-X scheduling framework that is capable of co-optimizing CO2
emission intensity and electricity prices in the day-ahead electricity market
scheduling. Three realistic models for local production units are developed for
flexible dispatch and the impact on electricity market scheduling is examined.
Furthermore, the possible benefits of using CO2 emission intensity and
electricity prices trade-off in scheduling are discussed. We find that there is
a non-linear trade-off between CO2 emission intensity and cost, favoring a
weighted optimization between the two objectives.
