Yes, Peter there is the looming issue of scale-up.
You say: "it seems that the 1 MW demo will be an assembly of say, 125 cells working together. I hope not...I am an engineer and I don't like the idea." Yes, that was my initial reaction as well. However, if this device is basically driven by a QM reaction, then scale-up may not work well. I think that is indeed the case. QM devices often have an inverted economy of scale, especially those dependent on tunneling. They make up for that limitation by maximizing the number of small units per devise - e.g. the FET. However, I am now thinking that a new manufacturing paradigm could be called for, and that this turns out to be an easily a workable situation with mass production and quick "swap-outs" somewhat like the auto SLA battery which seldom lasts for over 1000 hours of continuous use. That is why I had previously mentioned the auto assembly line. If a 10kW device does turn out to be a good choice, and if it has a useful lifetime of over 1000 hours (hopefully more), then that is similar to what we find in many autos - where at 60,000 miles major parts must be replaced. In mass production, we find that a 2000 kg luxury car is sold to the dealer for less than $20 US per kg of mass. The Rossi device might be worth more than that figure in per-kg cost - but only weigh 100 kg. The average citizen will spend more that $2000 per year on home and auto energy and could afford that much to pay for the periodic swapping of the nickel core. This could work out well for all concerned, even without scale up over the 10kW size. However, we are no longer talking about cheap energy - merely competitive energy at about ten cents per kWhr, including taxes and fees. BUT POLLUTION FREE (except for nickel mining) and with little greenhouse or other toxins. IOW - I agree that it is desirable to go higher in scale up if that is possible, but even if not possible - then the device is easily workable at exactly the form factor which has been demonstrated ~10kW. Jones

