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Lamplighter · 10-19-2011, 09:58 PM

By the way, PDX is on the same latitude as Vermont, where lots of solar panels are manufactured.

Portland and Seattle winter sun levels, even with the rain, are about equal with Vermont.
In both, solar is enough to take even a large house off-the-grid.
New construction is completely feasible, but retrofit $ are still prohibitive.

Oregon Dept of Transportation is using solar to light freeways (I-5) and intersections.
They claim savings with solar panels life expectancy of (20 yrs)

Eastern Oregon probably has as much sun as Australia,
so maybe such a challenge could work here too.

10-19-2011, 09:58 PM	#23
Lamplighter Person who doesn't update the user title Join Date: Jun 2010 Location: Bottom lands of the Missoula floods Posts: 6,402	By the way, PDX is on the same latitude as Vermont, where lots of solar panels are manufactured. Portland and Seattle winter sun levels, even with the rain, are about equal with Vermont. In both, solar is enough to take even a large house off-the-grid. New construction is completely feasible, but retrofit $ are still prohibitive. Oregon Dept of Transportation is using solar to light freeways (I-5) and intersections. They claim savings with solar panels life expectancy of (20 yrs) Eastern Oregon probably has as much sun as Australia, so maybe such a challenge could work here too.