To date we have accumulated about 40,000 kWh stored excess in the grid after almost 2 years of grid connected operation while powering 2 homes. Our local utility has taken about 12,000 kWh of this total to pay for our use of their wires to SEND them the power. They assess DEMAND / DELIVERY charges regardless of which way the power flows. At least they finally stopped taking our $ and are now just taking our stored kWh's to pay the commercial demand / delivery charges.
Note that Utilities define energy flow to the grid as negative (-) and flow from the grid as positive (+)
So, to the Utility the Net Grid plot here looks upside down, flipped about the 0 axis.
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| All the data logger can hold shows the seasonal water availability. |
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| The data logged the last whole month shows the daily use patterns and the waning water as summer drought set in. |
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