1 kWh creates approximately 1 kg of CO2 from a black coal fired power station.
1000
1 kW x 12 hours = 12 kWh. As to the cost - that may vary from country to country. Look at a bill from the power company to see how much they charge you per kWh. If that is not explicitly stated, divide the total amount of the bill, by the number of kWh used.
1.34 hp (electric)
1 unit
A therm is an energy unit (equal to 100000 BTU) while kilowatts are power (energy/time). 1 watt = 1 Joule/second, and 1 kilowatt = 1000 Joules/second. The kilowatt hour is an energy unit (power X time = energy). 1 therm = 29.31 kWh
good question A KWH is 1000 watts of power used for one hour. A 100 watt bulb would need to be on for 10 hours to use 1 KWH.
3.7 kwh
Your question is not very specific, as 'oil' is a very broad term. Crude oil is never burned straight, it is always processed. I will assume gasoline is what is being used. Gasoline produces 36.6 kWh of power per one US gallon. Therefore: (36.6 kWh/ 1 gal) = ( 1 kWh/ X gal) (1 * 1) / 36.6 = X X ~= 0.0273 gallons So it takes about 0.0273 gallons of gasoline to produce one kWh of power. Some digging on various sites tells me that about 55% of crude oil (per gallon) gets processed into gasoline. So we take our number of gallons and multiply it by 155%: 0.0273 gal/gas * 1.55 ~= 0.0423 gal/oil So it takes 0.0423 gallons of oil to generate one kWh of power.
1 kilowatt means a continuous power flow of 1000 watts, and in one hour the energy expended is 1 kilowatt-hour, also known as 1 kWh or Unit.
The energy output from LPG gas is as follows :12.9 Kwh/Kg & 7.5 Kwh/Ltr. (Details from "http://hypertextbook.com/facts/2002/EricLeung.shtml")
1 kwh = 3,600,000 Joules