[kushman2020]

Originally Posted by 13ronin

A watt is a measure of the amount of energy used. For the power company, it is often rated as Kwh. This is a Kilowatt per hour, or 1000 watts per hour. Now this is where it gets a little weird. People often ask, so how many Kwh does a 60 watt light bulb use per hour? It uses 60 watts per hour. That’s it. So in this case, we just do another simple formula and move the decimal place back.

60w /1000 = .06 Kwh.

Power companies charge by the Kwh, as I said above. Now, from looking at your bill, you can see how much you are charged per Kwh. The national average is 12 cents per Kwh.

Originally Posted by BC_M_O_B81

sorry guys but i read the thread but i dont understant it.im a stoner and im not that good at math just wanted to no how much electricity a 1000watt hps uses thats on for 12 hour and how much money it would cost? thanks

so, 1000 watts= 1 kwh.
12 cents a kwh
1 kwh per hour
1.44 per 12 hour cycle if my math is on, please correct if wrong.