Underwriters Laboratories independently verified 2.4 thermal or 5 electrical COP generated from only H2O as fuel

https://eng8.energy/energicell/

"ENG8 EnergiCells to be deployed as early as next year... primary fuel H2O creates plasma containing ionized atoms, the high temperature and pressure of which releases heat, light, electrons and other charged particles... catalysed fusion of protons and neutrons into new elements... COP (Q factor) 2.4 thermal or 5 electrical, independently verified by Underwriters Laboratories" YouTube: ENG8 EnergiCell Q-value 5 validation at Culham Science Park https://www.youtube.com/watch?v=SVy3IExRhI8

See also: Startup using water as nuclear fuel claims net energy gain milestone
https://interestingengineering.com/innovation/fusion-energy-company-claims-milestone

Simon Derricutt commented:

"anyone working on this type of "heretical" science is in a Catch-22 situation. To do the development work and produce something that is ready for mass-production, you need a lot of money. To get enough money to do that, they have to have something that is ready for mass-production and definitely and provably works. Thus initially, you're going to see demos that you can pick holes in, in the hope that someone with a lot of money is sufficiently convinced to give them the money to go the rest of the way and get it ready for commercialisation - if it really works and if that can be done. That means you will also see demos of stuff that doesn't work and scams. The difficult bit is deciding which is which - does it really work or is this just another scam?

"From other data I have seen, I think this one is real, though there is more work to do before it will be manufacturable. IIRC, the names of the UL people were published, but I'd doubt if their report is published yet. UL is however not infallible, and you need to bear that in mind. You still need to analyse what they actually measured and nitpick. The research on this goes back quite a while, and you'll need to check on George Egely's papers if you want to check his work, but given that he's doing this I think the data is valid. In previous replies I've said that they've set the COP lower than is possible to avoid radiation problems.

"We use linear accelerators to produce nuclear reactions. George's "dusty plasma" ideas produce extreme electric fields that will accelerate charged particles to a high-enough energy to also enable such reactions. Basically, it ought to do something, and the experiments show that it does. It's called LENR here, but actually it's something a bit different. I'm not particularly worried about the classification, providing it demonstrably works.

"COP5 is enough, and though that was measured thermally to avoid problems with converting the (spiky and high-voltage) power, their latest demo was electrical power in, and electrical power out through a resistor where the heat produced was measured. There's also some heat there that they didn't measure. Even a COP of 2 demonstrates it works.

"Main problem is that those demos were only about 10 minutes each. A bit more development to go before this is commercial. Question really is how far can they develop it.

"See https://www.lenr-forum.com/forum/thread/6933-eng8-new-plasma-energy-system/?pageNo=1 for a discussion of the pluses and possible problems here. I know Alan Smith, and he's an honest and skilled researcher, thus what he says can be trusted pretty highly" http://disq.us/p/2wgr9go