If you light a 100 Watt light bulb for an hour, it will consume 100 Watt hours of electricity.
If you light the same light bulb for 10 hours, it will consume 100 x 10 = 1000 Watt hours of electricity, or 1 kilowatt hours (kWh).
An average US home consumes about 30 kWh of electricity in a single day. 900 kWh per month. 10,800 kWh per year.
Each kWh of electricity equates to about 1 pound of coal burned (if that electricity is produced in a coal powered power plant).
Coal is the single largest power resource ahead of natural gas, nuclear, hydro, wind and solar, for electricity generation in the US, in 2020.
So, an average US home (if powered by a coal power plant) burns about 11,000 pounds of coal, each year!
Or that same average house could invest in a solar system of about 22 panels at a cost of about $10,000 – 15,000 and never pay for electricity again and offset 330,000 pounds of coal burning.
