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From: Arild Jensen (no email)
Date: Sun Apr 08 2007 - 12:44:39 EDT
-----Original Message-----
Solar panels are sooo - 20ith century. Check out
http://www.stirlingenergy.com/
Over twice the efficiency of a solar panel about 30% conversion vs 10-14%
and production is more environmentally friendly. Tested and in production.
Power purchase contract signed and sealed.
Philip & Marilyn Lange
REPLY
Right on! I have been following this project since reading about the early
developments some three or four years ago.
I was very disappointed when Victron withdrew their Stirling engine
generator from the N. American market.
what is not mentioned is the possibility of using residual heat for other
purposes.
The solar concentrators brings the stirling engine up to a very high temp.
But ther can be some residual heat, by re-reflection or radiant loses which
can be used for room heat. This is only feasuble with smaller stand along
Stirling engine generators intended for individual homes or smaller
businesses.
The company started out trying to create individual generators suited for
use by individual homes. Possibly those in isolated locations off grid. At
the time they had targeted a selling cost of $1.50 per watt for their
generators.
Well the lure of megabucks for R&D lured them away to the Public utilities
but hopefully R&D into smaller scaled units will continue. During their
background research into Stirling engines, they found 400 patents or designs
for Stirling engines of varying efficiencies and complexcity.
Sweden is using stirling engines to drive their submarines. By carrying
liquid oxygen they actaully burn fuel to create the heat needd for the
Stirling engine. Apparently it runs more silent than a nuclear sub and is
comparabel to a diesel electric sub when submerged. However it has far more
submerged endurance than a typical diesel-electric sub.
I have been wanting to design such a system for a yacht power system but so
far no interest from boaters.
Arild
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