2 Oct 2011: The heat wave at the end of September produced 3 successive PV-Maximum days in a row. As it is after the Equinox, these averaged 13.5 kWh only per day on my east facing 4KW array, but it is still nice to have them. The lower daily harvest is due to lower sun angles and short hours of daylight. It's distressing how quickly it gets dark in the early evenings!
It says something about the summer we have had (a lot of cloudy bright conditions) that that last day that PV was close to a maximum was 14th June, and previous to that it was May 1st and 2nd! For those who installed in early 2011, the good news is that 2011 has so far been sunnier than 2010, July and September being notably better.
DNC (feel free to comment or reply)
No comments:
Post a Comment
Comments will be moderated before showing. Please make them relevant to the subject of the posting. Comments which advertise commercial products will usually be deleted.