Solar Controllers--Don't be a Sucker! :(
Just got to say it again, how it is we are sitting here for five months off grid on solar with no problems at all (third season on solar like this), using the non-programmable, non-MPPT, solar control...
Forum Discussion
pianotuna wrote:
Hi Jim,
Are you suggesting reflection is less of a concern with non glass covered panels?HiTech wrote:
Worth adding is both angle because of cosine effect, but also agle because of reflection from the glass, which becomes the dominant loss for smooth glass panels at angles where the perpendicular solar output is still in the 25% range. I think people write off the benefits of morning and evening sun far too easily, because their yield with flat smooth glass panels falls off.
Jim
Yes, or with various coatings and textures of the glass surface. I believe the Unisolar surface is an example, collecting less energy per square meter straight on partly due to it's surface, but seemingly doing better at lower angles. I plan to collect some apples to apples data on this.
Jim
