It costs about 0.7 cents per kilowatt hour (kWh) of electricity
Electricity is sold in kilowatt hours in typical residential settings. A range of costs is from about 10 to 15 cents per kw hr.
It depends what your voltage is and how much your electricity costs. Assuming you are running standard residential voltage and your electricity costs 10 cents per kilowatt-hour. 1 Amp would cost you 1 cent per hour or 29 cents per day or $105 per year.
If your electricity costs 10 cents per kilowatt-hour, it would be about 0.6 of a cent per hour, or about 14.4 cents per day.
Conventionally generated electricity ranges between 5 and 18 cents per kilowatt hour (the amount of money to get a kilowatt of power for an hour) but in most places it's below 10 cents, according to the Energy Information Agency. Solar thermal costs around 15 to 17 cents a kilowatt hour, according to statistics from Schott, a German company that makes solar thermal equipment. Solar photovoltaics cost around 20-50 cents per kilowatt hour, according to Solarbuzz.
Discussing the cost of a kilowatt is nonsensical. If you want to discuss the cost of a unit of electrical energy, Kilowatt-hour makes sense.
It differs from region to region and country to country. The cost is dependant on the method the electricity is generated. One of the lowest production costs is hydro electrical generation. I pay 8 cents a kilowatt hour.
A megajoule is 1/3.6 of a kilowatt-hour so it costs about $0.05.
Biomass fuel costs up to about 9 cents per Kilowatt hour.
To determine the average cost of electricity you have to take into account how the electricity is generated. The generating costs have to be added into the cost to the consumer. I receive electricity from one the least expensive type of electrical generation there is. My power comes from a hydro electric dam. I am being charged .07 cents a kilowatt hour.
An electric vehicle can get an average of 5 miles per kilowatt-hours of electricity it uses. To figure out if purchase of an EV is practical, compare the cost savings of gas to electricity. If electricity per kwh costs 10 cents and total monthly mileage were 1,250 miles, the expense would be $25. If a gallon of gas gave 25 miles and a gallon costs $3.50, the expense is $175.