While I've got it open, I looked at whether reducing the row spacing and lowering the tilt would improve output. The answer is definitely no.
Another option that looks possible is reducing the array size by 1 panel, and making each row 5 across, with a 9 ft pitch instead of 8 ft. That is a GCR of 0.5977. The loss of the panel hurts more than the better GCR helps (increases optimal tilt to 19 deg), producing 17118 kWh with the 10 kW inverter.
Another option that looks possible is reducing the array size by 1 panel, and making each row 5 across, with a 9 ft pitch instead of 8 ft. That is a GCR of 0.5977. The loss of the panel hurts more than the better GCR helps (increases optimal tilt to 19 deg), producing 17118 kWh with the 10 kW inverter.
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