SOLAR POWER SYSTEM PRODUCTION HISTORY
Location is 33.75, -118.33. Azimuth = 155 deg, tilt = 26 deg.
24 Panels: Kyocera Solar, Inc.:KC175GT
Inverter: PV Powered LLC:PVP4800
DC Rating 4.2kW STC, 3.72kW PTC
The dashed line is a geometric computation, with the varying sun angles with season & time.
Variations at any given date (note, 30-day average) are due to atmospheric conditions.
Note that the scale baseline is 10, not zero.
The graph shows a small loss of average performance over these first 17 years.
2008 was a slouch in February, but a standout in October.
2022 achieved variously more, and less, than 2008.
2023 and 2024 were plauged by cloud cover.
SOLAR POWER SYSTEM PRODUCTION LONGEVITY TREND
Overall, year 2008 achieved 75% of the geom calculation; while 2024 achieved 65%.
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Version: 2025 01 02 1600 by A. Cellier