Finally had some time and went out to their web site and looked a bit on the web, a couple of observations....
1. This thing is huge and expensive, it won't be mobile (20,000 pounds for 100kw). We used to price things by the pound, and that still holds true today. Bigger heavier stuff usually costs more. The performance isn't all that great (50% conversion efficiency) and in fact the DOE has awarded a contract to produce similar energy efficiency from conventional means (rankine bottoming cycle on a small turbine) that is within today's technology and won't cost over $500/kw in first cost, so that's a bogey where they have to be.
2. While we are talking about first cost, the first cost now is $7000/kw. That is crazy expensive, somewhere between 15 and 20 times where they are going to need to be to be successful. Not necessarily impossible, but it is going to take automotive production quantities (tens if not hundreds of thousands of units per year) to do it, and I'm not sure that those kind of quantities are in the cards.
3. The "coming out party" was full of hype, a lot of sizzle and not much steak. The bit with the unvieling of the box of sand was particularly trite. I'm not the only one who thinks they are priming the pump for an IPO... http://brainstormtech.blogs.fortune....-ipo-than-co2/
It will be interesting to see what comes from this.