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Old 12-08-2016, 11:36 PM   #1 (permalink)
hayden55
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Join Date: Dec 2010
Location: USA
Posts: 1,170

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Nest Thermostat and LED lights

This is from a while back when I had just bought the new house and had rented out the two other rooms to some friends. Well after being extremely busy and only being at my house Mon afternoon through Fri morning, the other roommate farming full time and having not moved in yet, and one roommate moved in and being extremely wasteful, I started to take note of how much I was spending on my electric bill. So I went on another month, watched a bunch of used 2nd gen nest thermostats, and waited for some light bulb sales through august. Finally I bought a thermostat for about $133 dollars shipped in great condition, and About $100 in light bulbs at lowes.

Before (wattage per bulb x number of bulbs):
Front porch: 60w x 2
Bedroom 1: 27w x 4
Small bath: 60w x 6
Bedroom 2: 60w x 4
Hallway: 60w x 2
Foyer: 60w x 2
Dining room: 60w x 1
Kitchen: 15w x 6
Laundry room: 100w x 1
Garage: 27w x 2
Garage closet: 60w x 2
Living room: 13w x 3
Master: 13w x 3
Master bath: 40w x 6, 60w x 1
Master closests: 60w x 4
Total: 2110w total (unless i made a mistake)

Before (wattage per bulb x number of bulbs):
Front porch: 5w x 1
Bedroom 1: 5w x 1
Small bath: 10w x 2
Bedroom 2: 5w x 2
Hallway: 5w x 1
Foyer: 5w x 1
Dining room: 4.5w x 1
Kitchen: 8w x 3
Laundry room: 5w x 1
Garage: 8.5w x 1, 5w x 1
Garage closet: 5w x 1
Living room: 5w x 1 (a little dark at the back half of the unused part of the room behind the couch)
Master: 5w x 1
Master bath: 5w x 2, 5w x 1
Master closests: 5w x 2
total: 127w (if i counted correctly) (6% of original)

AC before: Fighting for people to stop turning the ac to 68F everyday, ac runs all day when nobody is here.
AC after: Set up the AC to go to turn off when we arent there, 73 when we get home until we go to sleep, then I would let it heat up to about 78 until an hour before we woke up, encouraging everybody to use your fan a little more.

Overall, nobody suffered, the monthly average highs were identical in arkansas from august to september, roommates continued to leave lights on overnight and everything else, took control of the ac, and our bill dropped!

July electric bill: $90.37 (1168kWh)
Notes: 1 person moved in, me there 30% of the time, third guy not moved in yet.
August electric bill: $110.61 (1490kWh)
Notes: Everybody moved in, normal schedules.
September electric bill: $80.16 (987kWh)
Notes: Different KWH billing rate, but all the same as august.

For the most part the house was a little warmer, but all the lighting was unchanged. No different. All led light bulbs purchased, just went an unscrewed some that we didn't really need since the house is only 1450sqft. Also note AC usage is 40-50% of your bill so it will be always be at a certain price. This really is just a hobby that I love, but it will be nice to see the return eventually pay off the investment.

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"I feel like the bad decisions come into play when you trade too much of your time for money paying for things you can't really afford."
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