# Estimating Electricity Cost

Wanted to check to see if I’m calculating power cost correctly.

If I pull 600-watts from the wall, and have a fixed electricity price of \$0.102/kw, running 18- hours/day start to finish (auto’s), is this the math?

.6kw/hr x 18 hrs/day=10.8kw/day
10.8kw@.102/kw=\$1.1016 a day
x120 days=\$132.20 lighting cost for the grow.

Is this math right?

I bet @dbrn32 knows how to get this one right.

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Looks like the math checks out. Keep in mind this is just electric usage and doesn’t factor in all the hidden electrical fees.

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Yes its correct,
.6 x.102 = .0612 or 6.12 cents/hr
6.12 x 18 x 120 gives you \$132.19
cutting to 12 hrs/day it becomes \$88.13

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Thanks buds!

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That’s correct.

Like Bobbydigital said, there is usually some delivery and service fees that come along with. Sometimes discounts or penalties for extra usage.

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You may also save a few pennies running lights at night and not during peak daylight hours. Good luck

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I am running two tents with LEDs - one for veg and flowering. My elec bill increased about \$60 a month from before I started farming.

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You can cut electric cost down even further IF you run your lights at night and reserve the