[ExI] Small scale solar payback time (was Re: Planetary defense)

[Damien Sullivan]

On Thu, May 19, 2011 at 11:40:08AM +0930, Emlyn wrote:

> If the tech is improving at a good clip, then the idea of short
> payback time, disposable cells (hopefully recyclable) might be highly
> preferable to long lasting tech; you don't want those cells up on your
> house for 40 years if 5 years after you install them, they are an
> order of magnitude worse than the new cheap stuff in the shop. Sort of

What does order of magnitude improvement mean for solar panels?  You can
get 15% efficiency today, there's not an order of magnitude of
improvement available.

-xx- Damien X-)