View Single Post
Old 02-04-2009, 03:24 AM   #23 (permalink)
Ryland
Master EcoModder
 
Ryland's Avatar
 
Join Date: Jan 2008
Location: Western Wisconsin
Posts: 3,903

honda cb125 - '74 Honda CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuter Vehicles Inc. Commuti-Car

Blue VX - '93 Honda Civic VX
Thanks: 867
Thanked 434 Times in 354 Posts
Quote:
Originally Posted by EcoDriver1951 View Post
So anyway, my net cost will be about $14,000. The cost per kwH used to be 5 cents or so, but is up around 10-11 cent now. The panels have a 40+ year lifespan, so I'll not be needing new ones for awhile. Expect it to "pay for itself" in about 14 years, but it's already paid for itself as far as I'm concerned.
The warenty is 30-35 years and warenty is based off half life, our pv that had a 15 year warenty are already 25 years old and working perfectly, there is feild testing that has been going on with pv for over 50 years now, so 40 years is cutting the life really short, you are going to have to write those things in to your Will, and your kids might have to do the same.
  Reply With Quote