I sometimes play with various tilt angles in PV Watts for different
locations too. The weather conditions at different times of year vary
from location to location so I don't think there is a one size fits all
solution here.
Also, I don't think this article or PV Watts takes into account snow
Hey Alan,
What I've seen over the years is GT customers /might/
change their their tilt angle for a year or two and then that's it for
that job, the array is then left at about 30-35 degrees for the
duration. My guess is 10-15% of my customers change tilt angle on a
regular basis
There are two issues that make the article overly simplistic I think.
- As the author admits, the calculations only work for arrays with due
south orientation and states that "Solar panels should always face true
south."
- The article ignores weather/temperature, which is one reason th
Wrenches,
One of my clients sent me this article on seasonal array tilt angles:
http://www.solarpaneltilt.com/#2season
It challenges some of the long-held numbers, although not substantially,
and I found it worth a review.
I have long advocated adjustment twice a year, staying at latitude t
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