Jones Beene
Sat, 03 May 2008 12:30:39 -0700
--- Mike Carrell wrote: > Small problem: frenels make cheap concentrators, but then you need sun-tracking mounting, not shown, and that can be quite expensive. There is an added cost, of course, but supposedly there would also be a fast payback, especially in winter and especially for modular units (below). Biggest Problem: what is really available now in low-cost tracking for small systems ? Here in a VERY nice graphic image of a modular system- which unfortunately, is closer to vaporware than a real product - but on paper it seems to be mass-producible, and a cost effective solution which will fit on the average roof: http://www.soliant-energy.com/products.php ... Nice! especially if mass-produced, but- as is so common with these companies- there is no actual photo of the real installed item, or cost study ...which product they had "claimed" [like Nanosolar] would be shipping in 2007. Is it any wonder why many of us are more than a bit skeptical of how effectively the US free-enterprise system has been able to cope with the introduction of relatively simple solar solutions (i.e. the tracking sub-system, not the panels)? If the Rockefeller's really want Exxon to 'give back' something to an economy which they have almost bled dry (as was recently in the news) then here is the perfect place ! However, it would not surprise me if the big advances to come in cost-effective solar are not made in India, Israel, China etc. since they tend to have more high level Government support for private companies- for such projects (and more internal need). And possibly less greed... Jones