amicus
Literotica Guru
- Joined
- Sep 28, 2003
- Posts
- 14,812
neonlyte said:Not true.
http://css.snre.umich.edu/main.php?control=detail_pub&pu_report_id=170
Read the University of Michigan study - it's 70pgs but hey, lets get things right.
Photovoltaics (conventional design) have a primary energy input (PEI) payback of between 3.5 and 8 years and a minimum lifetime of twenty years.
PEI takes into acount everything used to maufacture, assemble and install the PV panels. Current designs seek to eliminate high PEI materials used in manufacture and assembly to reduce the payback time. New PV technologies are literally embeded in window glass, they are cheap, require no additional support infrastructure and will have significantly lower PEI payback periods. This technology is currently available in Portugal though I'm annoyed to discover there is a current three year waiting list for PV glass.
~~~
Neon and perhaps RR, you both miss the essence.
There is, or will be, alternative energy sources that will supply the demand.
But the transferral from 'horse power' to the internal combustion engine, did not and could not have occurred by government edict. It was a matter of market forces and principles, efficiency and economy, and the free choice of a free people.
Let them be free!
amicus...

