harold1946 wrote:
12thgenusa wrote:
I don't suggest that one would or should fiddle with their panels though out the day, though some do. However, knowing your panel's operating temperature might lead you to explore panel tilt, not only for the direct power gains, but also as a way to mitigate panel temp rise and lower panel losses.
Using the previously posted tenperature of 45C or 113F, how would you propose that one lower the temperature to produce an appreciable gain.
Apparently you didn't understand the post you just quoted. I already know that BFL tilts his panels, but if a person wanted to reduce panel temp and has flat mounted panels, tilting is a way to reduce panel temp maybe by as much as 10C. Tilting allows for better radiant, conductive and convective heat loss.
A 10C temp loss could mean a recovery of 4-5% of panel power. For folks that are generally concerned about 2 or 3% losses in wiring, I'm rather surprised no one is picking up on this.
From the responses, I gather no one really knows (or cares) what the real panel temps are.
I may just have to fit a panel with a temp sensor and do some experimenting.
