The paper by Luca Gamberale of Defkalion Europe (DE) described the problems in detail. It is pretty damning:
http://animpossibleinvention.files.wordpress.com/2014/05/dgt-faulty-demo-140502-english.pdf QUOTES: Abstract I show that the experimental protocol used by Defkalion Green Technologies (DGT) is not reliable to demonstrate the production of large amounts of energy with the use of the reactor R5. Experimental tests carried out using the same measurement system used by DGT in public demonstrations show that the measurement of excess of thermal energy carried out following the experimental protocol of DGT is obtainable regardless of the use of H2 and of the high voltage excitation. . . . I list below some anomalies related to the relationship between DGT and Mose : - During the setup of the laboratory in Milan various improvements were introduced by the DE technicians and scientists concerning the calorimetry measurement. In particular a method independent of the flow rate measurement has been developed based on the heating of a large amount of water contained in a large tank and circulated through a pump in a closed circuit. This measure is independent of the measurement of the flow through the coil and it would remove any doubt about the heat measurement. DGT has not allowed DE to use such measurement in none of the tests of their technology. As a further improvement we added a second flowmeter upstream of the water system in order to verify the behavior of the main flowmeter during the measurement of the excess power but also in this case the added flowmeter was readily removed by the DGT technicians forbidding us to make any verification. - In no case DGT has enabled DE engineers to attend the assembly phase of the active components in the reaction chamber of the reactor R5 (built by us according to the DGT diagrams) nor has left the reactor R5 complete with all the necessary elements for running the experiment in the DE laboratories without their physical presence. Discussion After several tests performed by DE to validate the DGT calorimetry we must conclude that in the most benevolent case we are faced with a gross measurement error that has lasted nearly two years and has misled esteemed researchers who have personally witnessed demos of the DGT technology in Greece, in Canada and more recently in Italy. . . .

