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250 watt led light cost per month

  • Thread starter Thread starter Rockydogg3
  • Start date Start date Jul 31, 2022
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250 watt led light cost per month

Rockydogg3 Jul 31, 2022 14 Replies 2,703 Views
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Rockydogg3

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#1
Curious of how much for 2-125w leds are costing some of you that have them. I calculated about $7 a month for 12 hours a day. This seems very inexpensive. Hoping my calculations are correct. I don't have the patience to wait until next mont's bill) thx
 
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MIGrampaUSA

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#2
How much really depends on what your utility costs per KWH are. However, small grows don't have a huge impact on your utility bills until you start adding AC/Dehumidifiers and such. Even then, set up properly its probably not going to stress your budget too much.
 
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Shaded_One

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#3
I think my power bill went up $25-50 a month and I've got about 1000w of LED but no humidy or AC
 
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dean1963

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#4
my bill went up 22%, but i have 2-450 watt led's, humidifier,dehumidifier,heater,a/c plus 3 fans.
i think that works out to about $44 per month. it will depend where you live and what a KW/H costs there
 
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Buzzzz

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#5
Rockydogg3 said:
Curious of how much for 2-125w leds are costing some of you that have them. I calculated about $7 a month for 12 hours a day. This seems very inexpensive. Hoping my calculations are correct. I don't have the patience to wait until next mont's bill) thx
Click to expand...
It's 13 cents a kilowatt hour in my area,you would divide that by 4 in your case,depending on your price,multiply by the number of hours per month. Someone correct me if that's incorrect,I just had a cple rips.
 
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MIGrampaUSA

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#6
My utility has gone to using smart meters that register not only how much is used but when it's being used. There's a different rates for peek vs off-peek. That could screw up a formula if your utility is doing the same thing.
 
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growsince79

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#7
Rockydogg3 said:
Curious of how much for 2-125w leds are costing some of you that have them. I calculated about $7 a month for 12 hours a day. This seems very inexpensive. Hoping my calculations are correct. I don't have the patience to wait until next mont's bill) thx
Click to expand...
My 2 x 4 cost about 80 cents/day for electric. With nutes and soil around $30/month.
 
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BigBlonde

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#8
The U.S. Department of Energy has a electrical energy cost calculator. I put a link to it at the end of this comment. Here's a screen capture of the cost for my lights for 180 days if on an 18-6 schedule every day. I use a wattage meter to set the intensity of my lights.



https://www.energy.gov/energysaver/maps/appliance-energy-calculator
 
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E9noxis

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#9
Electric bill was about 80 bucks when I moved in to where I'm at. I now pay 220.
 
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MIGrampaUSA

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#10
E9noxis said:
Electric bill was about 80 bucks when I moved in to where I'm at. I now pay 220.
Click to expand...
How many watt of lighting are you using? What other equipment are you using that are potentially energy hogs?

This question is for reference as the OP is only planning on 250w of LED lighting.
 
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E9noxis

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#11
Thats true. I guess I went off topic.

MIGrampaUSA said:
How many watt of lighting are you using? What other equipment are you using that are potentially energy hogs?

This question is for reference as the OP is only planning on 250w of LED lighting.
Click to expand...

I have a lot of stuff. I'm sure jot everything in that bill represents my grow. I have my TV and Playstation.

I should have looked at my stuff before entering the thread.

For the grow I have my lights
Sf1000 = 100w
Solar storm 440 = 440w + (2) 15w uvb

An air conditioner
A red led for total of 2.5 hrs a day
I am not currently running exhaust

The oscillating fans aren't much...
 
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BigBlonde

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#12
Using the rated wattage of a device might not provide an accurate picture of the energy used. A wattage meter is better. There are a lot of them on the market. Here's one on Amazon that I've been using: Poniie PN1500 Portable Micro Electricity Usage Monitor Electrical Power Consumption Watt Meter. It costs about $18.

My light panels are rated at 240 watts, but at full power they only draw 233 watts. I also haven't yet run them at full power, which would be 466 watts for the two panels. They're set to a combined 350 watts now. One panel is a bit brighter than the other. Using a power meter to set the power level is also much more accurate than the markings on the dimmer switch.
 
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MIGrampaUSA

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#13
BigBlonde said:
Using the rated wattage of a device might not provide an accurate picture of the energy used. A wattage meter is better. There are a lot of them on the market. Here's one on Amazon that I've been using: Poniie PN1500 Portable Micro Electricity Usage Monitor Electrical Power Consumption Watt Meter. It costs about $18.

My light panels are rated at 240 watts, but at full power they only draw 233 watts. I also haven't yet run them at full power, which would be 466 watts for the two panels. They're set to a combined 350 watts now. One panel is a bit brighter than the other. Using a power meter to set the power level is also much more accurate than the markings on the dimmer switch.
Click to expand...
I use a device called "Kill O Watt." It looks identical to yours. Many brands out there, mine was purchased at Harbor Freight. It's been a while so I don't remember what it costs me. However, it's a great tool to have in your grower's tool box.
 
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growsince79

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#14
MIGrampaUSA said:
How many watt of lighting are you using? What other equipment are you using that are potentially energy hogs?

This question is for reference as the OP is only planning on 250w of LED lighting.
Click to expand...
300w for lights +fans.
 
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BigBlonde

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#15
MIGrampaUSA said:
I use a device called "Kill O Watt." It looks identical to yours. Many brands out there, mine was purchased at Harbor Freight. It's been a while so I don't remember what it costs me. However, it's a great tool to have in your grower's tool box.
Click to expand...
Kill O Watt meters are good, too. I had one but fried it by drawing too much power through it. Oops!

Those meters sure are nice to have. About a year ago, my battery backups were sounding alarms but there wasn't a problem with loss of power. So I plugged in a meter to find that the line voltage was over 240 volts. Then bang! No power at all. A transformer in a substation across the street blew. Surprisingly, nothing in our house was damaged. That's the only time I've ever seen line voltage that high.
 
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Replies 14
Views 2,703
Started Jul 31, 2022
Latest post Jul 31, 2022
Starter Rockydogg3
Forum L.E.D Grow Lights

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