A Mojave Desert, CA solar-based power-generating station (aka solar farm) receiving an average daily insolation of 6.9 kWh/m2 uses photovoltaic (PV) panels possessing a time-averaged operational efficiency of 19%. The size of each panel is 3 m x 1 m.

(a) What is the required area for a solar farm to provide the electrical needs for the State of California? (assume this is 259 TWh/year) (b) What is the annual savings in CO2 emissions (kilogram mass basis) if the all of the CO2-producing sources are removed from the California electric power portfolio and replaced by the solar farm