Might as well post my email, somehow other people are finding me!

Thank you very much, I would be very interested in the SunPower video. Lots of people had high hopes for the SunPower design being used in the MicroGen.
I googled up the MicroGen and SunPower, and saw the project for the MicroGen CHP was terminated.
http://www.delta-ee.com/downloads/Microgen.pdf
It came down to the Stirling costing too much to produce for what it gave back, even with production being done in Europe by larger commercial manufacturers who would license the technology.
Seems this is the fate of Stirlings, neat idea, but not worth the money, except in a niche where nothing else will quite do.
Oh, my email:
bptdude@hotmail.com
Oh, I checked your profile on this web. Nice airplane! You must enjoy it very much. I love my motorcycle, and could only imagine it with wings!
The Sumpower systems seem quite well designed by professionals.
http://www.sunpower.com/lib/sitefiles/p ... ochure.pdf
It would be interesting to take such a mature design, such as the EG-1000, kilowatt model, and just play with finding unusual heat sources to see what would make it go without normal fuel.