• Post Reply Bookmark Topic Watch Topic
  • New Topic
permaculture forums growies critters building homesteading energy monies kitchen purity ungarbage community wilderness fiber arts art permaculture artisans regional education skip experiences global resources cider press projects digital market permies.com pie forums private forums all forums
this forum made possible by our volunteer staff, including ...
master stewards:
  • Anne Miller
  • jordan barton
  • Pearl Sutton
  • Steve Thorn
  • Leigh Tate
  • r ranson
  • paul wheaton
stewards:
  • Nicole Alderman
  • Greg Martin
  • Mike Haasl
master gardeners:
  • John F Dean
gardeners:
  • Carla Burke
  • Jay Angler
  • Nancy Reading

Energy and carbon...how to get real numbers?

 
pollinator
Posts: 1614
Location: northern California
233
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Many of my deeper questions in permaculture come down to a question of numbers and science, surprisingly, and those facts are hard to find. Perhaps they simply haven't been discovered yet. For example, in my current climate (25 inches rain Mediterranean CA), many rapid growth trees require irrigation, which I currently provide with a grid-powered well. If I am heating with wood, how can I calculate whether the energy cost (as well as the cash cost!) of irrigated coppice wood is worth the benefit of having the additional irrigation-generated biomass to burn? There seem to be WAY too many variables in this seemingly simple question to come up with a usable answer. For instance, what are the ultimate sources of grid power in this region (coal, gas, nukes, wind, solar, hydro ?) And the carbon footprint of each. The caloric fuel yields of the various species I'm planting, and their response, or lack thereof, to supplemental irrigation. As an aside, there are the possible improvements in home insulation and stove technology, each of which has it's own cost in cash, time, and embodied energy.....It's such a confusing mess that I'm currently throwing up my hands and scrounging firewood wherever I can find it and planting whatever I think of willy-nilly as long as I think it's hardy enough to not be dependent on irrigation after establishment.
 
I will suppress my every urge. But not this shameless plug:
Mike Oehler's Low-Cost Underground House Workshop & Survival Shelter Seminar - 3 DVD+2 Books Deal
https://permies.com/wiki/48625/Mike-Oehler-Cost-Underground-House
reply
    Bookmark Topic Watch Topic
  • New Topic