My Home In Numbers

Solar (thermal)  PV   Electricity  Water  Heating   Pool   Video   Why   Historical Data   Misc


Solar Hot Water System Performance     Explanation

Today's solar hot water temperature graph


Photovoltaic System Performance    

Panel Output Battery Voltage Battery Current Current from utilities, to household Harvest over months

    Explanation

Electrical Power Consumption     Explanation     More Graphs

Today's Current graph


Water Consumption     Explanation

Today's water consumption graph


Water Pressure

This graph shows my home's cold water pressure, supplied of course by the City, over the course of 24 hours. The pressure is sampled many times a second for several minutes. The minimum value and maximum value that the pressure reached during that sampling interval is graphed below.

City water pressure graphi


Heating System     Explanation

Minutes of solar and gas heating per day

Today's house temperature graph


Zone Activity

This shows the activity of the five radiant floor heating zones in my house. When a zone is on (heating), a colored symbol is plotted on the graph representing that zone. Two zones are lumped together in this graph, the master bedroom and the core of the house are shown as "rest of house".


Master Bedroom Temperatures     Explanation

Today's Master Bedroom temperature graph


Pool Temperature

Today's Pool temperature graph


Pool and Thermal Storage Tank Temperatures 2009

2009 Seaonal pool and thermal storage tank temperature graph

    Previous Years

Pool Filter Pressure

Seasonal pool filter pressure graph


Crawlspace Temperature and Humidity

Crawlspace temperature and humidity

To improve my home's thermal efficiency I have blocked its foundation vents. However, those vents are needed to control humidity, to avoid mold. The humidity can get too high, for example, if there is a plumbing leak or if ground water gets under the house. My approach is to continuously monitor the humidity and take corrective action if necessary. This both saves energy, by allowing me to safely block the foundation vents, and gives me an early indication of trouble.


Sewer Activity

Sewer Activity

This graph indicates whether the home's sewer pipe is backing up. It does this by showing the conductivity between four probe wires that are installed in a section of sewer pipe. Higher conductivity values mean the the probe wire is wetter. Normally the wire at the lowest point in the sewer point, indicated in red above, is wet, and thus has high conductivity. Unless there is a backup down-stream of the probe wires, the probe wire at the highest point in the pipe, indicated in green, is dry, and thus has a low conductivity value. The wire touching the soil outside the pipe is also normally fairly dry, so has low conductivity values.

More Explanation


The plot of our gas, water, and electrical consumption, as measured by our public utility.


House Temperature Data In Tabular Form
PV System Data In Tabular Form
Raw Power Consumption and Sewer Conductivity Data In Tabular Form
Water Consumption Data In Tabular Form
Zone Activity Data In Tabular Form
Crawlspace Temperature and Humidity Data In Tabular Form

GNU Plot files that generate these graphs.

For more information, contact robert-pool at bedichek.org