I have wondered for some time about DGT (Defkalion). It bothered me that Peter Gluck and Axil seemed to ignore their (DGTs) very public disgrace, as they were accused, and the evidence seemed to support, their rigging the water inflow on their DGT Europe "coming out" test.
There were no reasonable excuses put forth by any party afterwards in their defense, regarding those accusations against. Shortly thereafter, DGT quietly disbanded. Yet, it was if, to some, they were still around developing their 8th generation Hyperion.
At ICCF19 this past spring in Padua this was said about them (DGT):
"Chongen Huang and four others from Xiamen University reported on two approaches to replicating the experiments and results published about two years ago by Defkalion Green Technologies. Both Defkalion and the Chinese group used gas discharge systems containing nickel and hydrogen. Two set-ups were described in the ICCF19 poster. A spark plug cell, similar to what Defkalion used, gave no excess heat for a range of pressures and temperatures. However, a high voltage cell produced 20 W of excess heat with a H2 pressure of 0.2 MPa. That represented 14% of the input power. When D2 was used instead of H2, “heat after death” was observed. The performance of these experiments was not reproducible"