On 29 September 2011, Stirling Energy Systems filed for Chapter 7 bankruptcy as the Stirling dish technology could not compete against the falling costs of solar photovoltaics, according to media reports.
Just as 200 years ago Stirling engines lost out to steam and electric motors it appears history repeated itself with Stirling engines once again just not being cost effective enough.
Yep, same old. Good for toys but impractical in the real world.
Everyone is always looking for the magic bullet and to hype up the under dog. I love all this old tech, don't get me wrong. I have a 300Kg toy in the form of a Lister Cs6/1 from the 30's but I'm not under any illusion heavy flywheel slow speed Diesel tech could be made to break land speed records.
As far back as I can remember going to the libary after school as a kid and reading Popular Mechanics and other auto magazines I have read of hundreds of " New breakthrough engine technology that could offer new levels of efficency, performance, economy and power" .
There have been allsorts of weird and Wonderful designs and hyped up promises but none of them, bar mabe 1, the rotary, has ever made it into production. There have been a few that had a limited run like the commer knocker with opposing pistons and the Napier Deltic used in rail road engines with great success but as far as vehicles go..... Nada.... bar the rotary. Which is now dead. Even the knocker and the deltic were just really re configurations of engines with pistons thrashing up and down the same as a Model T or even an Aveling Porter traction engine.
I think some people just have a need and desperation for something to bring hope to their lives and look forward to and will latch onto something and want so badly for it to become a success they get obsessed. There are a lot of engine designs that could be efficent and powerful and light weight and many other things BUT, cost of production, service life, maintence requirements, emissions and a load of other factors are all even more relevant and may make a design or technology unsuitable for the mainstream whether they work or not.
I just turn off when I hear about these new engine breakthroughs now. heard about too many that were nothing more than a PR exercise to raise money for investors to keep inventors and researchers in a job.
When I can see the engine in a showroom sitting in a new vehicle or go down the road and buy one on it's own or in a new piece of equipment , I'll give it some credibility.
Untill such time, it's just more vaporware.
With things like sterling engines, once they are installed in working applications ( other than space which is irrelevant) they will just be interesting tech that isn't practical in the modern age.