One big question for LENR is if direct conversion is possible...
One direct conversion from nuclear energy to electricity is betavoltaic.
I've just heard of that work in 2016 by Moscow University of science and technology "MISiS"...
http://en.misis.ru/university/news/science/2016-03/3905/
http://appleapple.top/russian-…can-operate-for-50-years/
I've found a paper, that seems related
http://iopscience.iop.org/arti…742-6596/741/1/012094/pdf
I've heard of similar work in US/EU zone.