<a href=showthread.php?s=&postid=13181588#post13181588 target=_blank>Originally posted</a> by melev
Excellent topic. Thanks for the link, Ken.
I just went through this recently myself, and pulled out the trusty Kill-o-meter:
Doing a little math to see what it costs to run my tank...
3 MH bulbs combined - 900w x 6 hrs per day
2 VHO bulbs combined - 187w x 11 hrs per day
Return pump - 141w x 24 hrs per day
3 Vortech pumps combined - 63w x 24 hrs per day
Calcium Reactor - 65w x 24 hrs per day
3 Fuge lights combined - 62w x 8 hrs per day
2 Skimmer pumps combined - 116w x 24 hrs per day
Prop light - 147w x 7 hrs per day
2 Icecap Fans - 12w x 7 hrs per day
All of the above runs 19.3 kWh per day, or 579 kWh per month.
Take that number times $.124375 and it adds up to $72 of basic operational cost.
Not included are a handful of tiny pumps running the suncoral tank, phosban reactors, flow in the prop section and refugium, which is probably around 100w for about $9 a month more, which puts the tank at $81.
In the winter, I run a couple of heaters which definitely cost me money. I only use two and they don't have a lot of wattage, thus they run longer than they should have to trying to bring the tank temperature up to 79.5 so they can shut off again. I probably need two 500w heaters so they can do the job quickly and save money, but what I have is a 300w & a 250w heater. That's something I'll need to resolve this fall, and make sure the DJ power strips can handle the extra wattage load, if they were to kick on during the lighting period. For now, the heaters are turned off for the summer months. My tank doesn't drop below 78.5F at night.
The window A/C unit (for the fishroom) definitely adds to the monthly expense during the hot months. If the circulation fan is running, it uses 116w of power. When the compressor kicks on, it uses 727w. If the garage is closed, it works even harder and uses something closer to 780+w of power. Last year, I measured the window A/C with a Kill-o-watt for two weeks straight to find out how long the compressor was on versus how long just the circulation fan was running, and it was pretty much 50/50. I hate to even calculate this one. 303 kWh equaling $38 a month.
During June, I was been able to turn off the window a/c during the late night hours, and turn it on daily around 1pm. One day I forgot and didn't turn it on until 3:30pm, after the lights had been on for some time and the fish room was getting toasty. However, the tank was 79.8F, which is due to the fact that my lights are 18" off the water. I don't really want to test the theory of what will happen if the A/C unit is off for the full day with the fish room closed up, but I do have the Aqua Controller II set to turn off the lights if the tank reaches 83F.
Add on the live rock cooking vat and the quarantine tank of 36 kWh and the angled tank of 73 kWh, and it looks like my little hobby is soaking up 1063 kWh per month, which is about $132 per month. My electricity rates are about to jump up slightly, which will put it around $149 per month in total electricity usage.
My three Vortechs combined use $5.64 of electricity a month to provide all the flow in my reef. The one Vortech on the angled tank costs $0.62 a month at a mere 6 watts of power.
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How to save electricity in your home:
Don't run the A/C unit too cool. I've kept my home at 75F this summer, and it is costing me money. However, I work out of my home most of the time, so I don't have the luxury of making it warmer since I'm not away all day like many of you.
Make sure the water heater isn't leaking. If it is, new cooler water is entering all the time, and the elements are having to heat that new water.
Make sure the dryer hose isn't crushed behind the dryer. Instead of running 40 minutes or so, it may run 2 hours or more and still not dry stuff. That one is an easy mistake.
Pump a bunch of insulation into your attic space so the A/C doesn't have to run as long when it does come on. I just spent a small fortune (Hi Bergzy :wave: ) on a new central A/C system. It was supposed to save money, but because the insulation in the attic wasn't deep enough and the soffit vents were clogged up badly, it could not keep up. I replaced all the soffit vents ($16), and pumped $500 of pink snow into my attic. It is now 15" deep, give or take an inch, and I have a much better R-rating in the attic. The A/C was able to keep the house the right temperature even when it was 110F outside. Prior to the insulation, the house crept up to 79F during the worst heat of the day.
thanks melve im going to look into alot of what you said as far as things in the home that can save energy. and thanks chris at reef flo he is sending me 3 smaller impellers for my darts and cuda cuts the watts by about 30% awesome customer service. my home is new, so darn near everything i have is pretty energy efficient its gotta be the ac when it was set at 72.
<a href=showthread.php?s=&postid=13182756#post13182756 target=_blank>Originally posted</a> by Fuzznutz
Don't forget that anything that has a "memory" draws power constantly. i.e. the vcr, dvd, tv, ps3, xbox360, cell phone chargers, computers all draw power when turned off. One should turn them off at the switch so the little red light/time does not show or unplug them all together. You may be surprised at how much you save by unplugging or turning these items off. I run my AC @ 76*, last year my rate was .104/kwh, this year is .128/kwh. Last years bill for July-$394, this year $306. We have been on top of keeping things off/unplugged that don't need to be.
<a href=showthread.php?s=&postid=13183980#post13183980 target=_blank>Originally posted</a> by BeanAnimal
mrpet,
I will post a spreadsheet for you as soon as I get a chance. You can use it to fiddle around with turning things on and off to see what happens to your bill.
As it stands, your tank is a little less than 1/2 of your electric load in your home. I get about 1160 - 1175 kWh per month from your tank. You said your bill was 2865 kWh
So with a base usage of 1705 for the OTHER stuff in your house, you can figure about 58 kWh per day from the A/C, TVs, and whatever else runs. You have some MAJOR current draw someplace my friend!
You are breaking into the second tier by day 6 and third tier by Day 7. You hit tier four by day 10 and tier five by day 16.
<a href=showthread.php?s=&postid=13183710#post13183710 target=_blank>Originally posted</a> by BeanAnimal
That is 3788 kWh for last July and 2390 for this July. In other words you are saying that you saved 1397 kWh by turning off these devices. That is not even reasonable by any stretch of the imagination. (47 kWh a day!).
Here is the math in case you do not believe me.
You said $394 last year at a rate of .104 per kWh
You said $306 this year at a rate of .128 per kWh
$394 ÷ .104 = 3788 kWh Last July
$306 ÷ .128 = 2391 kWh This July
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= 1397 LESS kWh this July !!!!
1397 ÷ 30 days = 47 kWh per day!
Reality Check:
FOR REFERENCE MRPET (THE OP) uses 38 kWh a day for his entire tank!!!!
1200W ligts 24 Hours
700W pumps 24 hours
800W misc ~10 hours
I hope you can see how there is no way that unplugging even a houseful of VCRs, cell phone chargers, set top boxes, bathroom air fresheners, alarm clocks, nightlights and Televisions can come close to the savings you see on your electric bill. Those devices at FULL POWER do not use that much energy (47 kWh per day) let alone when they are in standby or idle states.
Sorry to point this out so bluntly, but these are the misconceptions that fuel urban legend.
You can not account for the savings based on year to year electric bills just by saying that you unplugged some power supplies. Most of those power supplies use only a few cents of power a day at best. Sure some devices like older laser printers and 1980's VCRs that have no standby mode use more power, but very few people have a house full of those devices.
<a href=showthread.php?s=&postid=13190284#post13190284 target=_blank>Originally posted</a> by GSMguy
i got the tires properly inflated on my car, now I can afford that bubble king ive always wanted.![]()