I pretty much dropped out of this thread some time ago. But here's a good example illustrating the silliness of this cheesy fraud. (And yes, I am calling it a flat-out fraud.)
It's bad enough that Mills claims he is creating dark matter, and simply laughable that he claims to have verified this via spectroscopy. But the idea that "concentrators" are need for PV cells in this is extra-absurd. Concentrators are used to get more light from a distant source onto a smaller array of solar cells. But we're talking about putting cells at a tiny distance around a glorified light bulb - just about completely surrounding it.
Not only is there no need for concentrators, they'd simply get in the way; I expect they would actually reduce the total system efficiency in this arrangement (if you assumed hydrinos are real, which they aren't). In any case, there's enough power claimed in this phony process to destroy the PV cells; you could have a perfectly good working model with ordinary cells.
The concentrator cells-aren't-ready bit is a particularly stupid excuse for Mills not to put have a working generator. However, it's not even consistent with previous claims, as others here have already pointed out. The problem with running a scam this long is that you start to have trouble keeping track of the lies you tell. Fortunately for Mills, and as so ably demonstrated with our current President, the marks will put a lot of effort into believing you, even if you say two completely contradictory things in a short interval.