I'll try to get right to the point.... More than 70% of my roof, is covered in Solar panels... 2/3 of said panels.. were installed when I bought the house, the final 1/3... I installed post purchase, and paid cash, and they just recently paid for themselves in 2 and a 1/2 years. So far so good right? Why is everything else I have bought that's solar powered, been a flaming pile of crap? Went through half a dozen different brands of solar powered landscaping lights... and finally gave up and ran low voltage around the backyard, which sucked... because it involved concrete work. Bought a $600+ solar pool skimmer a few years ago on Amazon... It had hundreds of rave reviews when I bought it. (I was an early adopter) It worked like a champ for about a month... Then just crapped out. When I went to print the return label, I noticed a lot of people had downgraded their reviews, and almost everyone returned it.... No biggie, I got my money back and decided I would wait for them to work the bugs out... So I checked back periodically for their revamp, which was promised... But never came. Fast forward to today... As I'm skimming the 10th million bougainvillea petal from my pool. I thought, "Surely NOW someone has built a decent solar pool skimmer" 2+ years later.... There is 1 company making a consumer grade solar skimmer (on Amazon at least, although I did search Google shopping as well) Looking at the reviews... It's a piece of crap as well. What is the bottleneck? I'm not looking to take pictures of Mars.