Hi Russell, I know you have an interest in Stirling engines. Are there sites that give plans that an amateur can follow to build a Stirling engine of say 2 or 3 hp? I have also been thinking in terms of a solar heated Stirling engine to drive a 1 or 2 kw generator. One idea put to me is to use power generated by the generator rectified to DC in parallel to Rectified mains AC to power a hot water cylinder, possibly with a PIC controlled load sharing. _______________________________________ Roy Tauranga New Zealand _______________________________________ -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.8/114 - Release Date: 28/09/2005 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist