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

[Keith Henson]

On Tue, May 24, 2011 at 7:01 AM, Eugen Leitl <eugen at leitl.org> wrote:

snip

> gas network. Anaerobic digesters could cover probably up to 20%.

I worked out trash to syngas to liquid fuel some years ago and came up
with less than 5% of the demand.

If you consider the thermal value of the stuff that goes down the
drain vs the trash . . . I don't think so.

Keith