how does a 1000w light relate to electric bill?

[yamaha_1fan]

i am trying to figure out how the wattage of my lights will relate to my electric bill. a know a 1000w light uses 1000watts but over what period?

The ultimate goal is to keep my usgae below 3000KW hours per month, thus keeping my electric bill in a normal range.

i know it will vary depending on lighting schedule but can someone tell me how to calculate it? I know it must be simple.

yamaha_1fan Reviewed by yamaha_1fan on 10-21-2006. how does a 1000w light relate to electric bill? i am trying to figure out how the wattage of my lights will relate to my electric bill. a know a 1000w light uses 1000watts but over what period? The ultimate goal is to keep my usgae below 3000KW hours per month, thus keeping my electric bill in a normal range. i know it will vary depending on lighting schedule but can someone tell me how to calculate it? I know it must be simple. Rating: 5

[yamaha_1fan]

ok so i read the FAQ's.

a 1000 watt light uses 1000 watts per hour.

so heres my math.

worst case i'll be running 16 hours per day for 30 days. so thats 480 hours

3000KW = 3,000,000 watts or 3M watts

3,000,000/ 480 = 6250

So based on my math, running 16 hours a day, i can run about 6250 watts per hour and maintain my 3000kw hour usage?

[futuregrower]

how much are u charged per kwh

[harris7]

[quote=yamaha_1fan]ok so i read the FAQ's.

a 1000 watt light uses 1000 watts per hour.

[QUOTE]

no watts are a rate not a measure of magnitude. for a 1000Watt bulb you will use 1 kWH (K watt hour) which for me costs 6 cents per kWH.

So thats 24 hours * 30 days * 6 cents/1kWH=43$

[jamstigator]

Watts are indeed a measure of magnitude. Kilowatt HOURS are a rate (that's what the 'hour' part is, usage/time).

In any case, there are about 720 hours in a month (30-day month). So if you ran your 1k light 24 hours a day, that'd be 720 kilowatt hours. If you want to stay below 3000 kilowatt hours, then you could use as many as four 1k lights running 24 hours per day (but basically nothing else).

If you're using just one 1k light 16 hours/day, that's about 480 kilowatt hours, leaving you 2520 kilowatt hours for other stuff throughout the month. That comes out to about 84 kilowatt hours of 'spare' (non-light) useage per day, or about 3500 watts of constant useage. Since some months do have 31 days, you'd probably be safest using no more than 3000 watts on a constant basis (plus the 1k light 16 hours a day).

Check my math, but I believe that's correct.

[MegaOctane12]

You have to allow for environmental controls and shit, it all adds up, I think electricty prices shot up about 20% recently.

[yamaha_1fan]

our electric is about 11 cents a KW hour. so 3000KWh = $330. I could even go higher cause my normal electrical bill in the houses i have lived in have been 300-500 dollars. Kids go through alot of clothes and leave alot of lights on.

Consider my math is based on 16 hours a day usage, and that wont be all the time, since part of the time will be 12/12

There will be no other electricity usage besides pumps, and fans, and any other minor usage.

I am counting on the fact the grow room is in a room in a finished room sorrounded by other finished rooms. As we are coming into winter, there will be no need for AC. I am planning on using a CAN filter which i already own to pull air out of the room, push into another room and pull that air back into the room. That way i should be able to provide enough fresh air, while keeping the temps up. I am considering running the lights at night while it is the coldest to keep the room warm.

[wishmaster244]

ok maybe im crazy here......but the most electricity ive ever used in my apartment in the hottest of hot days in the summer was under 500 kwh, and thats a 2 bedroom apt, so 3,000 kwh seems really really high to me and will seem very very suspisious to the electric company, who will report it to the cops, like when you start to flower and shut off your lights you will create spikes which will alert the man to what your doing if the smell doesnt first, now me myself am very paranoid, but it pays to be you know....replace all your bulbs with energy effcent types, never ever ever shut off your lights, make a special flowering room to bring the girls to at night to avoid unneeded suspition...anyways hope my paranoid rantings helped lol .....peace

[harris7]

I dont think it creates spikes because they are not continuously monitoring your power consumption. In BC they only check once every 3 months so they can only find your average.

[harris7]

Watts are indeed a measure of magnitude. Kilowatt HOURS are a rate (that's what the 'hour' part is, usage/time).

indeed, but my calculatoin is correct, so yall can use it:rasta: