A200 mw combined cycle gas turbine (ccgt) power generation station is considering the addition of a carbon capture and storage (ccs) system. the power generation station has a capacity factor of 90% and a heat rate of 8530 btu/kwh (higher heating value). the ccs system will remove and stores 85% of the co2 produced by the power generation station. however, the ccs system will reduce the efficiency of the plant by 6%. for example a plant with 32% efficiency without a ccs system would have 26% efficiency with a ccs system. the rated capacity of the plant will remain at 200 mw after the installation of the ccs. assume the natural gas used to fuel the ccgt power generation station is composed of 95% methane (ch4) and 5% nitrogen (n2) on a volumetric basis and has a higher heating value of 52.8 mj/kg. it is purchased for $3.50/mbtu. a. what is the mass fraction of carbon (c) in the natural gas (kg/kgna)? b. what is the co2 emission factor for the natural gas fuel (kgco2/mbtung)? c. what are the co2 emissions per mwh of electricity delivered for the current power generation station (mgco2/mwh)? d. what are the annual co2 emissions of the current generating station (mgcoz/y)? e. what would be the co2 emissions per mwh of electricity delivered if the ccs were installed (mgco2/mwh)? f. what would be the annual co2 emissions if the ccs is installed (mgooz/y)? g. how many metric tons of co2 emissions would be avoided annually if the ccs is installed (mg0oz/y)? h. what is the increased cost of fuel per year of electricity generated as a result of the ccs system (106 $/y)? i. what is the increased cost of fuel per metric ton of co2 avoided ($/mg002)?