Question about energy costs.

[skunkmeister]

I am going to start growing at my house vs my friends house and I am going to be using a 150W HPS and MAYBE a couple CFLs. Now I'm trying to grasp the kWh equations and I'm just not following.

Maybe I can break it down to the question I'm trying to ask.

Is a 150W CFL or a 150W incandescent gonna cost about the same to run as a 150W HPS?

I tried to use the energy calculators online that will give you an estimate based on what light you use but none of the calculators include HPS or MH.

 

[skunkmeister]

anybody at all?

 

[growalater]

IT will go you about 10-20 dollars depending on how much you get charged per kilowatt. To run a 400w hps, 100w inline fan and all my controllers and so on it cost me an add'l 45 dollars

 

[ow.douglas]

I suspect that you are talking about a true 150W cfl, one of those expensive ones not the 42W, 150W equ. If that is the case, watts are watts and 150=150. I'm not 100% sure about that answer but, that is my understanding.

 

[Fisherman Pete]

a 150w envirlight will use a certain amount of power.

watts = voltage X amps

for a 125w cfl envirolight

wattts = 230v (UK) x 0.35A = 80.5w real usage.

80.5w is 0.08kwh. multiply that by your energy rate, say 12p a unit, and you have a running cost of 0.12 X 0.08 = 0.0096p an hour or roughly £5 at 18/6 usage for a month.

for a 125w hps, 125/1000 = 0.125kwh. 0.125 * 0.12 = 0.015p/hour so do the math and you end up paying about £8 a month at 18/6 usage

 

[KlosetKing]

a 150w envirlight will use a certain amount of power.

watts = voltage X amps

for a 125w cfl envirolight

wattts = 230v (UK) x 0.35A = 80.5w real usage.

80.5w is 0.08kwh. multiply that by your energy rate, say 12p a unit, and you have a running cost of 0.12 X 0.08 = 0.0096p an hour or roughly £5 at 18/6 usage for a month.

for a 125w hps, 125/1000 = 0.125kwh. 0.125 * 0.12 = 0.015p/hour so do the math and you end up paying about £8 a month at 18/6 usage

what he said!