Consider a 50-kW rooftop PV system installed at a cost of $3500/kW. The PV system operates with a capacity factor of 22%, $0.005/kWh of maintenance costs, and 1% downtime during a typical year. For a lifetime of 20 years and a discount rate of 5%, estimate:

a. The LCOE (in $/kWh)

b. The required capital cost for the LCOE be competitive based on a $0.10/kWh utility rate.