I decided to look at my home energy usage. Below are notes on how I’m approaching it. I wish I could get insight from the MIOS graphing plugin, but it is pretty basic and can’t throw out outliers and has terrible zoom capability. I also never figured out how to set the y-axis.
In order to build a plot, I considered the following options:
- Use MATLAB
I had to use MATLAB (or similar) to condition the data in any case. First, I had to scp the data over from my Vera. For example:
scp remote@micasa:/dataMine/database/10/raw/2302.txt tmp/10_2.txt
Which I was able to pull together using some MATLAB:
Since I monitor both legs of my electrical setup, I would have two plots. Here is what my MATLAB code currently produces (click on the plot below to do some analysis):
I’m not happy with this plot. It is hard to get at the events that are happening. I can’t easily put vertical bands on because the units are all strange with the time series plot. I definitely can’t browse the data and get insight for what is happening. I also want to add both datasets together so I can see total energy consumption.
Additional data from Dominion Power
Also, as part of my analysis. I pulled together some historical data from Dominion.
|Meter Read Date||Days||Usage||Daily Usage|
Table 2 — From Dominion Power
|Meter Read Date||Days||Meter Reading Method||Meter Read||Usage (kWh)||Demand||Avg. Daily Usage|
|07/05/2013||30||AMR – MOBILE READ BY VAN||19247||1608||0.0||54|
|06/05/2013||34||AMR – MOBILE READ BY VAN||17639||1318||0.0||39|
|05/02/2013||28||AMR – MOBILE READ BY VAN||16321||985||0.0||35|
|04/04/2013||30||AMR – MOBILE READ BY VAN||15336||1061||0.0||35|
|03/05/2013||29||AMR – MOBILE READ BY VAN||14275||1161||0.0||40|
|02/04/2013||31||AMR – MOBILE READ BY VAN||13114||1139||0.0||37|
|01/04/2013||32||AMR – MOBILE READ BY VAN||11975||1341||0.0||42|
I’m out of time this morning, but when I get more time, I’m going to be considering the following: