This series of graphs
represents one of several household thermodynamic tracking
projects that are being conducted at The Ravina Project. These
data are collected every day from the utility meters. For the
purposes of these graphs the power used from all sources is
converted to kilowatt hours (kWh). This allows for a direct
comparison of the household usage among energy sources.
The following graphs track
household power usage by energy source. Inputs are broken out by three sources: gas,
grid and generated. The total length of the bar above
zero represents the total amount of power used by the household on
that day expressed in kWh. Note the generated value is a net
value. The amount pushed back to the grid is represented in
Green. We now a bi-directional utility meter which we read every day. It
allows us to account for the power we generate but can't use.