Rossi on his blog explains that the heat output during the demo came from the nuclear reaction of several picograms of Ni -- about 3 X 10E-12 gm ... a millionth of a microgram, while the mass of the nuclear reacting H would be 1 atom of H for each atom of Ni reacting, with the most common isotope being Ni62, so the H mass used would be several times (1/62) = about 3 X .016 picogram = about 5 X 10E-14 gm.
So computers, cars, trucks, railroads, boats, subs, planes, high altitude airships, and spaceships can operate with very tiny food tanks -- but the reaction may alter or disrupt the nanoparticles of Ni, and make cumulative reaction poisons -- his plan is to replace the Ni every 6 months in the 1 MW commercial plant this year with 125 units similar to the 10 KW demo, which had about 1 gm Ni nanopowder. A square of 125 units will be about 11 X 11 units, perhaps 5.5 X 5.5 m for .5 m size units. A few feet of dirt would easily provide enough radiation shielding. In aircraft, the reactor can be placed at the back end, far away from passengers, while in seacraft, the reactor can be in a pod in the water behind the craft. Desalination of seawater and deep ground water for fresh water and minerals on a huge scale allows quality food production in vast greenhouses with added electric lights, providing employment for millions of new villages everywhere. There is plenty for all world citizens to have a right to live in nonurban, self sustaining, free and unique communities that can express the best of their traditional cultures with minimal social disruption, while cities can be as modern as they please. Note that each personal iPad type computer in a decade will have about 100 to 10,000 times more speed and memory for the same hundred dollars, along with software and more game-changing Web innovations, like Google, Wikipedia, Second Life, Facebook the last decade, that facilitate the actual emergence of a positive global democratic generous social order. It will be possible for every family to have an individual automatic flying escape pod in case of earthquakes, storms, fires, tsunamis, and terrorism...