I’ve got your “game changer” right here - but you’d never know because it gets so little press (AND so few ppl understand the operating principle to start with):
https://brilliantlightpower.com/
Protos under going calorimetry testing in the lab early this year:
https://www.youtube.com/watch?v=UwjyO8H0E6U
Public demo in 2016:
https://www.youtube.com/watch?v=nIDmFJXrkx4
“a new commercially competitive, non-polluting, plasma-based primary source of massive power from the conversion of hydrogen atoms of water molecules to dark matter”
By golly I think I know why it doesn’t get any press :-)