kwH?

[orangeman]

Well, I took a look at our bill yesterday and the KWH is about 406 or somethin..how much do you guys think it would be if I added a 400w HID light, also with that the bill costs like $100 some where in that range..how much would it be if I added a 400w light with that? I know you guys are better than me with math and watts so help me out :D.

[the image reaper]

your electric bill will show you your rate per Kilowatt ... figure your usage in watts per hour, per day, divide by 1000 to get your use in Kilowatts, and multiply times your rate ... Example: ... my electric rate is roughly 11cents per kilowatt, so a 400-watt lamp, run 18 hours per day, for 31 days would amount to $24.55 per month ... 400 watts X 18 hours X 31 days ... divide by 1000, and multiply times 11 cents ... $24.55 ... :smokin:

[orangeman]

your electric bill will show you your rate per Kilowatt ... figure your usage in watts per hour, per day, divide by 1000 to get your use in Kilowatts, and multiply times your rate ... Example: ... my electric rate is roughly 11cents per kilowatt, so a 400-watt lamp, run 18 hours per day, for 31 days would amount to $24.55 per month ... 400 watts X 18 hours X 31 days ... divide by 1000, and multiply times 11 cents ... $24.55 ... :smokin:

Damn your smart lol.

[DH06]

but a 400w fixture uses more like 460 watts per hr. depending on the ballast.... but using the "bulb" wattage will get you close enough to get a rough figure...

[turtle420]

This might help...
http://boards.cannabis.com/showthread.php?t=61045&highlight=calculator

[graph]

I'm lifting this from another post I made. You posted in that thread too, orangeman. Oh well, here ya go.


It's not gonna be that bad. However, there are many ways you can start saving money. For instance, stop using the air conditioning and use fans and blankets instead. Make sure you always turn your lights off when you leave the room, etc.

Let's say they charge $0.07 per kilowatt. (400 x 24) x 30 = 288000. Multiply that by 0.001 (converting to kilowatt) and you have 288. 288 x 0.07 is $20.16, which is the cost of running a 24-hour setup.

I'm gonna skip the math part for 18/6, so let's just skip ahead to the answer. It would be $15.12 a month, assuming your electric company charges .07 per kilowatt.

Math is cool.

[orangeman]

Let's say they charge $0.07 per kilowatt. (400 x 24) x 30 = 288000. Multiply that by 0.001 (converting to kilowatt) and you have 288. 288 x 0.07 is $20.16, which is the cost of running a 24-hour setup.
.

So let me get this right...the 400 is the wattage of the light, the 24 is for how long I'm keeping the light on and the 30 is for the standard ammount of days in a month and the 288 is just the result of 0.001 and the 0.07 is the kwh cost.....if I'm right I only have one question.. whats the 0.001 for lol?

[the image reaper]

the electric company charges by the kilowatt ... a kilowatt is 1000 watts, thats why after you reach your monthly total wattage, you need to divide it by 1000 (or multiply by .001 to find out how many kilowatts you will be charged (about 11cents per kilowatt here in northern CA ... (you would have learned this in school, had you attended, and stayed awake) ... :smokin:

[orangeman]

the electric company charges by the kilowatt ... a kilowatt is 1000 watts, thats why after you reach your monthly total wattage, you need to divide it by 1000 (or multiply by .001 to find out how many kilowatts you will be charged (about 11cents per kilowatt here in northern CA ... (you would have learned this in school, had you attended, and stayed awake) ... :smokin:

Lol how the hell do you know I fall asleep in my math class? xD

[the image reaper]

because I woke up long enough to catch ya ... :D

[graph]

That's right... 11 cents... alright, again with the math!

24/0 setup:

(400 x 24) x 30 = 288000 x .001 = 288 x .11 = 31.68 x $1.00 = $31.68

18/6 setup:

(400 x 18) x 30 = 216000 x .001 = 216 x .11 = 23.76 x $1.00 = $23.76


Money Saved by running 18/6 instead of 24/0:

$8.10 per month, or $97.20 per year.


Smoking your very first crop:

Priceless.


Sorry for the lame joke, it's late.

[orangeman]

Rofl! That joke is still funny to me.

[graph]

oh, and I was off on the final numbers.

aye aye aye.

You'd save $7.92, or $95.04 per year

[mountainman]

Damn your smart lol.

It's not rocket science, but maybe I'm a bit jaded. Afterall, my degree is in rocket science. :dance:

[orangeman]

No, I was just never good at math and I cant believe I a actually figured out how to get the charge of my elecricity bill at the end of the month from using what ever watt appliance..if I apply my self I can learn xD.