Yes, unless triggered into a mode where nuclei actually fuse and release more energy than the storage process needs. Doing that repeatedly on demand is the unsolved trick. MUCH data exists that it happens sporadically....though that is denied by the hot fusion physics types.
It’s funny how detractors want to consider the external costs for LENR but ignore such pre- and post-generation costs for gasoline, coal, fission, etc.
The formation of ultra dense hydrogen from hydrogen Rydberg matter by way of the Shell Hydrogenation Catalyst 105, releases an amount of thermal energy similar to the Tadahiko Mizuno experiments.
As to nuclear fusion, Holmlid in prior experiments with laser triggered Coulomb explosion within the D(0) coated target, found traces of Helium 3 & Helium 4. The density of the Deuterium was such that some pressure induced (Pycnofusion) occurred, even without the presence of a converging shock typical of Inertial Fusion fuel pellets.