Electricity supplied from the national grid is 8p per kilowatt-hour.
A householder is considering installing solar cell panels. The household uses 4000kWh of electricity each year. The cost of the solar cell panel is £6400 per kW.
What is the payback time?
Thanks, please explain how you worked the answer out if possible
A householder is considering installing solar cell panels. The household uses 4000kWh of electricity each year. The cost of the solar cell panel is £6400 per kW.
What is the payback time?
Thanks, please explain how you worked the answer out if possible