Reply #14: The point this seems to be missing is dynamic feedback

[HamdenRice]

Of course, right now, everything manufactured and transported, including solar technology, that uses energy is using fossil fuel energy. But as more and more solar generating capacity is created including solar panel generation, then those very same manufactured items become cleaner in their manufacture and transportation.

It's terribly unrealistic to expect a new solar energy generating technology would itself be created without fossil fuel. The question is whether over time there is a dynamic feedback of ever more energy produced by solar which makes the production of the same items less polluting.