Andrea Rossi has been quite positive lately in his comments about the length of self-sustain periods he is able to obtain with both the 1MW plant, and the Hot Cats under test in his laboratory. Earlier this week he stated that his team had been successful in extending the self-sustain periods in the Hot Cat.
Precisely how long these periods of self-sustain are, we do not know, and Rossi is not disclosing COP numbers, but obviously the longer E-Cats and Hot Cats can operate without any energy input, the higher the COP will be. If indications are correct, it could come to a point where there only needs to be very short periods of energy input to keep the E-Cat operating.
I put this question to Rossi:
You report success with long periods of self-sustain-mode, which would mean higher COP, with less energy input required.
If this is the case, it seems to me that it should be easier to provide the drive for the E-Cat with a battery or other energy storage device. This would allow for the operation of an E-Cat from solar or wind input with no grid connection needed.
Is this something you are considering?
Yes, of course!
By the way, I found in the last issue of the magazine of NASA ( Tech Briefs) an advertising of batteries lasting up to 40 years. Very interesting, I am looking for them.
To complete my answer: we are talking of “Tadiran Batteries”:
Based on lithium thyonil chloride.
When I asked whether they were considering battery input for domestic or industrial E-Cats, Rossi replied:
This is an R&D issue: I will get back to you when appropriate. We have to study and test.
Thank you for your question.
Many people have hoped that an E-Cat could be self-looped — i.e. drive itself without any need for an external source of power, but Rossi has said that an external drive is required for safety reasons. Of course if the E-Cats start to produce electricity, it would seem to be a trivial thing to charge batteries using a portion of the electrical output — and in that case, it would be as good as self-looping.
A year ago, when asked about the possibility of battery powered E-Cats Rossi responded, “That is also a line for the R&D we are making. Batteries are very expensive, though, and their pay back period is not quite convincing. So far.” It seems like his thinking has evolved somewhat from that time.