chuckey
Member
- Messages
- 883
- Location
- wenslydale
PV cells are not experimental, they have been around for decades. If you are life testing THESE panels then by the time any meaningful data has been accrued this model will have been superceded, so I suppose you had better run another experiment.
If you are testing the PV energy use by a typical family, give them a 24V PSU controlled by an internet connection. You can then control the output voltage. Else you are hoping that the year is not too dull or too sunny to make any sense of the data accrued.
I note your comment on the "lens construction", this is actually a really good point. looking at most panels I far as I can see there are no lens, they are " flat panels". It would be great if the panels had fresnel lens, so the cells optical max O/P was not normal to the plates surface, so the output can be optimised where the roof pitch angle is not equal to the angle of latitude. I suppose one could even give them an east / west slant for roofs not facing directly south. Would cause a stocking problem for supplier tho'. :mrgreen:
Frank
If you are testing the PV energy use by a typical family, give them a 24V PSU controlled by an internet connection. You can then control the output voltage. Else you are hoping that the year is not too dull or too sunny to make any sense of the data accrued.
I note your comment on the "lens construction", this is actually a really good point. looking at most panels I far as I can see there are no lens, they are " flat panels". It would be great if the panels had fresnel lens, so the cells optical max O/P was not normal to the plates surface, so the output can be optimised where the roof pitch angle is not equal to the angle of latitude. I suppose one could even give them an east / west slant for roofs not facing directly south. Would cause a stocking problem for supplier tho'. :mrgreen:
Frank