On Apr 7, 12:30*pm, wrote:
On Wed, 7 Apr 2010 08:51:55 -0700 (PDT), keith
wrote:

On Apr 7, 10:33 am, wrote:

Photo-voltaic's don't have to be a complete solution in order to be a
worthwhile proposition. What's the ROI on your car? Is it at least the
most cost efficient car you could possibly own? Is it as cheap as
taking mass transit? If not, then I guess using a car for
transportation isn't economically feasible.

The ROI on my car is quite good, actually (something like 2,500%). *It
allows me to go to work every day.

You just failed basic economics - Very badly.

Photovoltaics suck for the average home. On the other hand solar
powered water heater and direct heating of your home with solar energy
can be very efficient. One study on using photo cells to power a home
failed miserably. Trees had to be cut away so light could get to the
solar panels. This increased HVAC usage by more than the solar panels
could provide. Im not sure which university performed this test but it
was in Fl. Shouldn't be hard to find if you want to look it up.

Jimmie