electrical cost of 400watt HPS +rep

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rhino1111

Well-Known Member

Nov 7, 2010

• #1

so im really wondering how much my electricity bill would go up if i have a 400watt HPS light on 12/12. im wondering per month how much it would go up. Im paying $0.074 per kWh maximum, i have no idea how to calculate this equation. if anyone can calculate how much it would cost me it would be much appreciated also +rep.


stay high

 

GreenNerd420

Active Member

Nov 7, 2010

• #2

It will cost less than 25 a month...

 

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frmrboi

Well-Known Member

Nov 7, 2010

• #3

it's easy. a kwh would be equal to a 1000 watt light running for an hour so a 400 watt would be 40 % of that roughly 3 cents/hour or $.36/day.
$3.60 for 10 days, etc.

 

tet1953

Well-Known Member

Nov 7, 2010

• #4

Your most recent electric bill will tell you how much you pay per kwh. Simple math will tell you how much it will cost.

 

cadeneli

Active Member

Nov 7, 2010

• #5

i hardly notice a difference.

 

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rhino1111

Well-Known Member

Nov 7, 2010

• #6

okay thanks everyone + rep for everyone. and im liking the sound of $3.60 for 10 days. very inexpensive.

 

Saerimmner

Well-Known Member

Nov 8, 2010

• #7

mine adds £2.50-3 a week

 

RavenMochi

Well-Known Member

Nov 8, 2010

• #8

†s† all of ya'll fucking rock. I was wondering the same thing for a 600w, but the math answers for any size......

 

darkdestruction420

Well-Known Member

Nov 8, 2010

• #9

you can offset the cost of your grows electricity by changing any halogen bulbs your using in your house for small cfls if you havent done so yet. A 12 pack is only like $10 around here for the 13w ones. I know in a way this is a bit off topic but i figured i'd throw it out there.