Gordon Howell -- Cold Climate Solar House
15006 103 Avenue
Edmonton, AB
T5P 0N8
Canada
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Technical Specifications
Grid Status:
On-Grid
Year of Install:
1995
Usage:
Household
Facility Type:
Residence
System Size:
2 300watts
Lessons Learned
Don't mix the type of PV modules... energy losses due to mis-match between modules is significant. The max power point tracker on the inverter has a hard time figuring out what to track. The power factor on the house ranges from +100% to -100%. 73% of the time it is more than +90%, 27% of the time it is less than +90%, including times when it is zero and negative (not leading or lagging, but negative).
I have 14 years of 15-minute data available for the system.
