The Topline deal was march 2011. The letter of intent was to build pre-production prototypes of these units. key words being "pre-production prototypes"
It looks like Topline moved on to Prism This a syngas product. Instead of changing the engine they have a way to make gas
from "grass clippings to old bedding, from waste ship bilge sludge to unburned coal-ash, from raw sewage to wood chips…any carbonaceous waste is ideal. PRISM™ uses these waste products to make ultra-clean synthesis gas"
I've heard they are working on there own WHE.
A lot of things have changed at CYPW in those years not all good, but problems have been identified and fixed with a lot of help; and money. Not all the early contractors/customers were prepared for or understood what pre-production prototype in beta means. (not quite ready for prime time.)
That is old news 2011 looks like Topline moved on to
build pre-production prototypes of these units
looks like Topline moved on to