How much is all this power costing?! (Pic)

I need some accurate guesses on how much you think my electrical bill is going to go up due to my marijuana appliances.

Right now (for veg), I have

-Three 42w CFLs on for 18 hours a day
-One 4 inch inline fan (80w) on for 18 hours a day.
-One 6 inch Circulation Fan on all 24 hours.

Next month (for flower), I will have

-Two 42w CFLs on for 12 hours a day.
-One 150w HPS on for 12 hours a day
-One 6 inch Circulation Fan on all 24 hours.
-One 4 inch Inline Fan (80w) on all 24 hours.


Any good guesses? Winner gets mad respect.

damn I'm high... forgot to add the pic


Here is a pic of the setup in question...

dude you can figure it out yourself. you need to figure out how much you pay per kilowatt and do the math on how many kilowatts your set uses. not to mention the other household shit you have.

How it works

To calculate your cost per month you will need a copy of your last few power bills, and this spread sheet. If you just want to estimate and know how your power billing works just check out the pic.

First you need to find out how much your power company charges you and how much you allready use. Take your power bills out to do this.
There are three things you will need Total Usage, a Baseline power allotment (this is important as you go over this Base the price per kWh will increase), and the Pricing.

Next find your setup, or enter your own on the Lights sheet.

Lastly enter your info. Start with info from your bills.
Previous Usage cells, enter your Total Usage from your last 3 bills.
Baseline, find and fill in you baseline power allotment.
Pricing, Dont worry if all the entrys arn't on your bill, they usualy increase by $0.05, just fill them ALL in.
Your Lights,enter the number you looked up on the Lights sheet.

On to Version 2. Let me start by adding this post
Quote:
Originally Posted by babygro
Ohms law is relatively straight forward and can be used to calculate an accurate figure of wattage useage from any light system, and this would probably have been a better way to go. To calculate total wattage used from a ballast HID system you need to use the amperage figure not the bulb wattage figure. To show you how your figures are inacurate, OHMS Law is Volts x Amperes = Watts, so if we know two of those figures we can calculate the third.

The real wattage of a 400w HID system is Volts x Amperes or 120 x 3.8 = 456watts for an average 400w system others would be -

250w 120 x 2.5 = 300w
400w 120 x 3.8 = 456w
600w 120 x 5.7 = 684w
1000w 120 x 9.5 = 1140
By using the new Ohm's Law section you will be able to get even more exact with your estimate. I recomend useing this section to get your actual watt usage. As pointed out by babygro and A Good Keen Man useing only bulb comsumption and not power loss in the ballast will throw your results by up to 15%. By useing Ohms Law i think it will be more around 5% Give or Take so I added a range of costs derived from -5% to +5% less or more KWh usage.

98% of electronic equipment will have its Amps posted on it somewhere. As for your voltage just about everyone should know their local voltage but it is usualy posted to.

hope that helps

just add up ALL the wattage your using for your grow area and multiply it by what your electric company charges per kilowatt (1000watts). then multiply by the hours used. that will give you how much your charged everyday that your shit is on. then multiply by how many days its on for 18 hours.. then do it for how many days its on 12 hours. if you cant find the watts on your appliance,you should be able to find the amps. take the amps and multiply that by 120v, that will give you your watts. so it should look something like this..

.6 kilowatts x amount of cents per kilowatt x 18hours x 30days (vegetative)
.6 kilowatts x amount of cents per kilowatt x 12hours x 60days (flowering)

thats just for your light, not including the fan, blower, and whatever else you might use..

to find what your what your charged per killowatt, go to google and type the state your in and ask "kilowatts per hour"?

LOWNskater -

I have a spreadsheet which calculates power usage based on hours per day, wattage, kilowatt-hours consumed (KWH - calculated by multiplying watts by hours used, then divide by 1000), and price of electricity.

I do not know your local electricity costs, so I used mine (16 cents per KHW). You can look this up on your utility bill, or you can google your state's/province's average. You also did not list the wattage of your 6" circulation fan, but I googled it; I assume this draws 10 watts.

With your current setup, you are using approximately 2.51 KWH per day. At $0.16/KWH, this is will cost you $12.34 per 30 days.

When you switch to flowering, you will be drawing approximately 4.45 KWH per day. At $0.16/KWH, this will cost you $21.90 per 30 days.

LOWNskater52 said:

I need some accurate guesses on how much you think my electrical bill is going to go up due to my marijuana appliances.

Right now (for veg), I have

-Three 42w CFLs on for 18 hours a day
-One 4 inch inline fan (80w) on for 18 hours a day.
-One 6 inch Circulation Fan on all 24 hours.

Next month (for flower), I will have

-Two 42w CFLs on for 12 hours a day.
-One 150w HPS on for 12 hours a day
-One 6 inch Circulation Fan on all 24 hours.
-One 4 inch Inline Fan (80w) on all 24 hours.


Any good guesses? Winner gets mad respect.

Click to expand...

My guess is "not enough to care about".

click pic to in large

Nice chart!
I had to figure things out the old fashioned way a while back, while trying to convince my wife that I really /needed/ a 1000w HPS. A couple of her friends were telling her it would cost a couple hundred dollars a month just to run that...and...since I know a thing or two about electric and think most of my wife's friends are borderline retarded, I set out to prove them wrong.

1st off...the National Average for electric costs in 2009 has been roughly 12.4 cents per KWh. (I notice some measures on that chart much higher and I seriously feel bad for anyone paying much more than that right now, with the way the economy has been).
In my particular area they must have realized that everyone is broke and there hasn't been a job opening within 100 miles in the last 2 years...because we get a sweet sweet 4.7 cents per KWh here. (With all my pumps and whatnot I'd be looking at roughly 30-35 dollars a month extra if I ran the thing 24 hours a day)


Another thing to consider...1000W may seem like a high number for electricity. Its not. Those electric space heaters you buy at WalMart and similar places usually run between 1-1.5 kW. Of course...they aren't intended to be run constantly for a few months either...and that is where some of the problems can come in with overheating/melting/fires.

This next link is to a chart that shows how much wattage some of your common appliances will use so you can compare (once again keeping in mind that many things do not or should not be run constantly), and it can help you a bit if you are trying to figure out which circuits to put your growing system on.

http://www.barriehydro.com/media/files/ApplianceUseChart.pdf

For instance...its probably not a good idea to put them on the same line as your microwave, waffle iron, coffee pot and toaster and then try to get up in the morning and make yourself breakfast with those all at the same time...those 4 things would pull a bit over 4kW on a 120v line just by themselves ( at 33 amps or so)...add in your grow system and I envision blown breakers and fuses in your future.




(Had to edit because I forgot to add the link I mentioned.)

If it helps, I run:
1 x 400w HPS
24 x 27w (648w) CFL's
2 x 8" inline fans
2 x 6" inline fan
2 x tower fans
1 x oscillating fan

Thus far with this setup, my electric bill has increased by around $50 per month.

DoeEyed said:

If it helps, I run:
1 x 400w HPS
24 x 27w (648w) CFL's
2 x 8" inline fans
2 x 6" inline fan
2 x tower fans
1 x oscillating fan

Thus far with this setup, my electric bill has increased by around $50 per month.

Click to expand...

Thats does make me feel better! Rollitup never dissapoints. Thanks for all the help guys.

The average cost for my state (Florida) is 12.4 cents per kilowatt so that relatively expensive compared to other states. But I have taken many steps to counteract the jump in electric cost...
- Changed all house lights to 9 watt cfls
- Leave A/C unit off cause its awesome in FL right now
-Unplug all appliances I don't use and don't use them very often'


Hopefully this counter balances my usage. Any more help would be great thanks! I do give out reps+ to badasses!

no more than 15 or 20 bucks a month man.....believe me , im an electrician....lol.......just dont feel like calculating right now because im really stoned..... that estimate is based on .8 cents per kwh.....