Low-energy nuclear reactions are showing some remarkable progress with respect to energy (excess heat) production and transmuted element detection, but experiments remain only thinly reproducible. LENR also suffers from a basic lack of understanding of the governing physics.
There is also a compelling need for a theory that can explain production rates and lead to specific electrode treatments and electrolyte compositions and predictions of reaction power, energy and products. The Widom[-Larsen] theoretical construct appears promising but lacks robust experimental verification and rigorous peer review.
The polarizing history of LENR is a detriment to expanding research efforts, and it seems unlikely that deployable/useable devices could be expected within a five- to ten-year horizon.
Since 2006 no deployable/useable devices were deployed. It has been five years since the report.
It remains to be seen if nothing gets deployed over the next five years.