SOLutions in Solar Electricity
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PV quietly converts sunlight into electricity for decades. Every 1,000 kWh of PV reduces nearly 8 pounds of sulfur dioxide and 5 pounds of nitrogen oxides polluting emissions and more than 1,400 pounds of carbon dioxide.

From November 1999 to July 2000, we took four meter readings daily.
(1) kWh from the utility meter at our service panel for our net-metered grid consumption.
(2) kWh from the load meter at our subpanel on the output of our Trace inverter (AC Out) for our PV powered office consumption (our emergency loads are also on this subpanel).
(3) kWh from our Brand Electronics meter on the bi-directional output of our Trace inverter (AC1) for our PV input to the grid.
(4) Amp-hours from the digital display on our C40 charge controller for our PV array DC production.

Daily readings matched our calculations and the estimate from PVWATTS so beginning August, we took only monthly readings.
 

Month
Total kWh
Grid kWh
PV kWh
PV kWh/day
PV %
Oct
452
290
162
5.3
35.9%
Nov
596
452
144
4.7
24.1%
Dec
692
547
145
4.8
20.9%
Jan
575
432
143
4.7
24.9%
Feb
466
260
206
6.8
44.3%
Mar
385
117
268
8.8
69.6%
Apr
396
78
318
10.5
80.3%
May
374
48
326
10.7
87.3%
Jun
346
(8)
354
11.6
102.3%
Jul
417
61
356
11.7
85.3%
Aug
434
142
292
9.6
67.2%
Sep
511
317
194
6.4
38.0%
Total
5,644
2,736
2,908
7.97 Avg
51.5%

If you want to
MAKE THE WORLD A BETTER PLACE TO LIVE
and
SET A GOOD EXAMPLE
and
EARN THE RESPECT OF FUTURE GENERATIONS,
then install a PV system on your home or your business.
You'll be glad you did.

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