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Thursday, January 22, 2015

Nov/Dec Duke Energy Bill

I've been slacking a bit on posting my energy usage as I'm hoping to use Groovestream to upload my stuff automatically.  Still working on it so stay tuned.

My Nov and December bill results are posted below.  November (Oct 1 to Nov 1) wasn't too bad, but December (Nov 1 to Dec 1)...wow...I blew that out of the water using 50% more than last year.

November 2014 Daily Energy Consumption.  Note around the 16th how my energy usage significantly increases.

November Bill (Oct 2 to Nov 2) 2013
Total Consumption = 651 kWh
Days = 31
Average Daily Consumption = 21.0 kWh/day
Bill = $64.02

November Bill (Oct 1 to Nov 1) 2014
Total Consumption = 510 kWh
Days = 31
Average Daily Consumption = 16.45 kWh/day   (21.66% reduction vs 2013)
Bill = $63.14

December Bill (Oct 28 to Dec 1) 2013
Total Consumption = 906 kWh
Days = 34
Average Daily Consumption = 26.65 kWh/day
Bill = $96.66

December Bill (Nov 1 to Dec 1) 2014
Total Consumption = 1,202 kWh
Days = 30
Average Daily Consumption = 40.07 kWh/day   (50.4% increase vs 2013)
Bill = $126.46

I wanted to know what I used so much energy in 2014 vs 2013.  Yeah, I did host Thanksgiving this year and had family over, but that really couldn't be THAT much over 2013 given that it was just a week.  
For Comparison:  November 2013 Energy Consumption
Digging in, I see that I ran my HVAC system longer (see figures below)...which accounts for about 70 hrs longer in November (@2.25 kW) or 158 kWh/mo.  That's a good chunk.  Beyond that there's my my issues with the water heater, but that's tough to quantify....maybe 60-80 kWh/mo?  The 2x extra showers with family in the house could boost that a little bit...but that can't be more than 10-20 kWh/mo I would think.

Downstairs HVAC Usage from Ecobee (Weather Adjusted)

Upstairs HVAC Usage from Ecobee (Weather Adjusted)


You can easily see my energy usage spike after Nov 16th (Note:  I was away at a Conference!).  The low on Nov 25-26th is because the circuit breaker which the TED5000 was attached to busted (thank you Squirrels!), so I had to replace it and I lost a big chunk of data.

One thing is that my wife has been on a crazy clothes cleaning binge as she's prepping all the old kids clothes for the upcoming consignment sale.  So an extra 6 kWh/week (24 kWh/mo)?  That could put me in the neighborhood for similar energy usage.

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