I haven't posted any numbers for a while, so here goes. I don't track everything on a daily basis anymore. It was too much work, and I ended up losing my data when my computer crashed anyway.
Now I just look at the electric meter once in a while. To me this is the most important number because it summarizes the balance between power generated and power used.
[These are all a.m. meter readings.]
April 12: 17,510
April 13: 17,475
April 14: 17,493
April 15: 17,454
April 19: 17,353
April 21: 17,300
April 25: 17,213
April 28: 17,251
May 5: 17,294
May 17: 17,118
May 24: 17,140
A decrease from the previous reading means that a surplus has been generated and exported to the power grid. An increase means the opposite.
The reasons for fluctuations is obvious -- on cloudy days we don't generate as much power. On hot days we use more power (A.C.)
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2 comments:
Hi Dave.
If your have an inverter like the one shown in your diagram (An SMA- German model) or some others, you can read the actual generation from the digital readout on the inverter.
Thanks, Jack. Ours does have a digital readout and I used to record those numbers religiously. Then I realized that for me it was more trouble than it was worth. I just like seeing the end result on the electric meter.
Most of the information that comes up on the inverter readout is stuff I don't really understand anyway...
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