Can we do a guesstemate on

[payne]

how much $ it would go up per 600w to a 1000w? and from a 400w to a 600w? And how would you justify the increase if EVER asked. I know I would not, but I just would want to know how to answer.

[pflover]

i can answer all this if you tell me A) how much your power costs per KW/HR and B) how many hours a day you would be running the light. as to the excuse.... well the power in crease for just one light is really not that much. about the same as if you had bought a new deep freezer or something of that nature. or been using a heat gun for some prodject lol.

[lriv]

haven't you ask about the same question here?
http://www.treatingyourself.com/vbulletin/showthread.php?t=15625

[smokinbasser]

In the states AFAIK the rule of thumb is 1000watts per room, I know that with my electric furnace it draws 21,000 watts when running.With power consumption like that I don't worry about my grow pulling 1200 watts plus. I started out with two 48" GE plant aquarium tubes and one 400w HPS and just kept adding lighting during the grow. I am not positive how much our puters draw but when you add in the tv, the electric waterheater, the fridge, the clothes washer &dryer, the automatic dishwasher the miniscule wattage from a HID light won't even make a ripple in your electric/ hydro (for all of our northern folks) bill. To figure out how much your bill will jump find out how much they are charging per kilowatt hour. For me it is .07477 per kh. That roughs out to approx seven and a half cents per kh. I hit a high in the cold months of 2800kh and in the summer 650kh. A 1000w HPS will draw one kilowatt per hour for flowering, multiply by 12( as in 12 on 12 off) Justification?? I'm cold so I run my furnace. It's none of their business that you use the heat off of your lights to supplement the heat in your house in the winter. Oh I didnt even mention little goodies like stereos and cd players and dvd players that constantly are drawing power, your answering machine etc I hope you get the idea. I have 3 @1500w space heaters that could cover the grow lights draw with just one of the heaters.

[pflover]

to me it seems payne is asking two different but related questions with these two posts. the other post is not likely to get the answer to this question.


for a 400 at 12/12: 4c/kw/hr = 6.62/month, 10c/kw/hr = 16.56/m, 20c/kw/hr = 33.12/m

for a 400 at 18/6: 4c/kw/hr = 9.94/month, 10c/kw/hr = 24.84/m, 20c/kw/hr = 49.56/m

for a 600 at 12/12: 4c/kw/hr = 9.79/month, 10c/kw/hr = 24.48/m, 20c/kw/hr = 48.96/m

for a 600 at 18/6: 4c/kw/hr = 14.69/month, 10c/kw/hr = 36.72/m, 20c/kw/hr = 73.44/m

for a 1000 at 12/12: 4c/kw/hr = 15.84/month, 10c/kw/hr = 39.60/m, 20c/kw/hr = 79.20/m

for a 1000 at 18/6: 4c/kw/hr = 23.76/month, 10c/kw/hr = 59.40/m, 20c/kw/hr = 118.80/m

now this will only give you a round idea. let me know how much you actually pay per kw/hr and i will happily provide you with more exacting #'s. :)

[pikes peak 69]

{light wattage/1000} x {hours per day} x { days in month} x {price per kilowatt} = cost per light per that month.

example:
400 watt
12 hours per day
31 days in month
.075 kilowatt price

400/1000 = .4
.4 x 12 hours =4.8
4.8 x 31 = 148.8 total kilowatts
148.8 x .075 = 11.16 dollars for that month.


hope that helps.

Roger

[payne]

YES!!!!!!!!!!!!!!!!!!!!!!! Thanks bunches...
I was just making sure that,
a) I can afford the jump in price
b) it would not be something that would all of a sudden make them (electric co) go hmmm... especially where I have a doc note stating I am a med patient and need electricity. Just being cautious, that is all.
Again, you guys ROCK!!!!!!!!!!!!!!!!!!!