In other words, the energy input needed to manufacture a PV solar panel will far exceed the expected energy output over its anticipated lifetime
This is no longer true. New a-Si PV cells have full energy payback in as little as 2 years, and flexible polymer cells are being developed that are even cheaper, both in terms of dollars and energy.
Perhaps a slightly different question is in order. The _energy efficiency_ of solar energy is very much secondary to the _monetary efficiency_ of solar energy.
These three quotes (two from a previous thread) sum up my question. I have heard before that it took more energy to produce this product than could be recovered from it. What I'm looking for is a reference supporting or refuting it.
[This message has been edited by WFO (edited 11-08-2006).]
