A small hydroelectric station delivers 2.16×1012J of electrical energy to the grid in a 24-h period.
(i) Convert this energy into kilowatt-hours.
(ii) Determine the average electrical power output of the station in megawatts.
(iii) A household typically requires 8.0kWh of electrical energy per day. Estimate how many such households can be supplied by the station’s average daily output.