Thread: check my math?
View Single Post
Old 12-19-2012, 09:55 AM   #4 (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 433 Times in 353 Posts
How long can a device like that run without needing attention?
Most solar panels have a 25 year warranty and pay for them selves in about 10 years, the warranty is based off their half life, so 50+ year life span meaning that the long term cost of electricity produced by solar is less then 2 cents per kwh and that is the installed cost, paying someone else to do all of the work.
  Reply With Quote