From the submitted article: "Zawodny has designed a stamp-size array of metal tiles to test the theory. According to Larsen’s paper, the properties of some of the tiles should make it easier for electrons and protons to merge and form neutrons. If Zawodny observes evidence of neutron production, then he plans to do a follow-up experiment to see if those neutrons are fueling radioactive decay. Even if he gets the expected results, though, it would take several years and many corroborating experiments before LENRs could be considered confirmed."

. . . .

"So far, Larsen still has only a theory and some circumstantial evidence."

In other words, the operative word in the subtitle of the submitted article (used as the submission headline here) is "may." There doesn't seem to be any strong evidence yet that the process described in the article actually produces net energy output.

P.S. I heartily approve of (and have upvoted) the first comment this comment received, pointing out that there isn't even evidence that the speculated process described in the article even exists.