jamjr1972 (December 31, 1969 at 4:59 pm)

now someone needs to make a solar panel that can handle the full power a fresnel lens gives! then find a way to harnest the power in a cell for night use!

tonnoenergy (December 31, 1969 at 4:59 pm)

When focus sunlight on a PV do not have to watch the voltage but the current is much higher.

Matsutom (December 31, 1969 at 4:59 pm)

Thx Dan

waluum (December 31, 1969 at 4:59 pm)

Is it practical, or even possible, to make micro lenses with the same angular patterns as the Fresnel lens to place over each solar cell to maximize its input? Perhaps sheets of these can be made to match the size and cell-per-inch for solar panels?

rendinealis (December 31, 1969 at 4:59 pm)

good demonstration =Dr u working with any company developing CPV?need some info with non-imaging opticsbut fresnel lens sure rocks!

fatherschild721 (December 31, 1969 at 4:59 pm)

your popcorn exercise was great, you should have tried heating a material that can maintain heat , and please the pot /pan like a hot plate or grillet top

sailorhaijun (December 31, 1969 at 4:59 pm)

this is a completely different use for the lens, but i saw some youtube videos not too long ago about people making soda can heaters by removing the bottoms of cans and caulking them together to make tubes, where the lid of the cans compartment it so the sun has time to heat the air inside. just painted black the system turned 40 degree air into 200 degree air. i hope you see where I'm going with the focused lens... i also saw some of water heaters working similarly. hope this sparks good ideas!

rainbowsalads (December 31, 1969 at 4:59 pm)

@rainbowsalads that comment was meant for the latest video were the cable was heated up and melting due to the added mirrors.

rainbowsalads (December 31, 1969 at 4:59 pm)

mains cable = lower resistance .thin cable is great for making a nice filament , but will completely rob/convert your energy to heat, maybe even light...As we see here, smoke, at least 50 percent of the energy was wasted! Probably fortunate, in that the internal circuitry was protected due to this naf cable.

MrPerAnders (December 31, 1969 at 4:59 pm)

What would be the potential for combining such a panel with e.g. solar pool system to solve all problems?By that I mean run water through capillary pipes behind the fresnel focused solar panel as a heat sink to dissipate the heat and at the same time create hot water for your pool/shower. The idea being to combine both panels into a single unit.I've not seen any vids on making your own solar water/pool heating panels... do any exist, is that even feasible?