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1. carefully measure a few sample solar panels on the PPA array above
2. determine a very accurate measure of the effective solar area of one panel, in m^2
3. count the panels, assuming all are working (some may not be, as you will find out elsewhere on campus, using something called TIGO)
4. measure the power output over regular intervals (e.g. no clouds)
5. compare with solar radiation over the same regular intervals (“shoulder” periods will be important here-ask about this)
6. calculate the efficiency of the system (should be under 20%)
7. compare efficiency with other time periods, e.g. years ago, or throughout a year (seasonal variation on solar incident angle).
isr
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