Gordon Howell -- Cold Climate Solar House

Case Study Info

City/Town: Edmonton

----- 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.

System Info

System Size: 2300 watts
Status: On-Grid
Year of Installation: 1995

Facility Type: Residence
Usage: Household