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re: starting with a blank slate - what would you do differently?
2 sep 2005
ecnerwal wrote:
>at present my offgrid system consists of an unsuitable generator (3600
>rpm welder/generator, air cooled) and a bank balance.
you can quickly convert that pesky bank balance into pvs :-)
>...wind potential stinks (84 foot straight-growing trees)...
aka "towers"?
>my inital application is a bit odd .vs. typical offgrid houses - the
>first building up is the shop. it will have need of some pumping
>capacity for radiant heat (probably a couple of ~125 watt pumps, duty
>cycle not certain), and sporadic use of up to 3-4 hp worth of motors,
>along with as much as a kilowatt+ (even if it's _very_ efficent,
>slow-starting metal halide - a few dim cfs just won't cut it) of
>lighting. it might sit for most of a week (or longer) doing nothing but
>running the heat...
>i'm mostly looking for ideas about what you would do differently if you
>were starting with a blank slate, within the context of the general
>background information i've provided...
how about a sunspace over the insulated south wall of the shop, or some
polycarbonate "solar siding" to make an air heater to lower the heating
fuel bill, with a few small windows and lightshelves near the top of the
south wall to provide light? full sun is about 10k footcandles.
a well-lit office is 50, 200x less.
nick
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