I recall Martin Fleischmann once estimated there is enough palladium to produce about half the energy in the world. I did a rough estimate and came up with more optimistic numbers, around 3/4ths. I based this on the amount of palladium used today in automotive catalytic converters. A large fraction of the world's energy goes through these converters in the form of waste heat. It is an obscene amount. You can estimate it from this figure showing 27 quads of energy used in transportation in the U.S. Bear in mind that most of this is for cars, which are about 20% to 30% efficient.
http://www.eia.gov/totalenergy…pdf/flow/total_energy.pdf
Suppose only palladium works, and it can only produce about the half the energy in the world. It would have to be used in central generators with long daily duty cycles, or even 24-hour baseline duty cycles. This would preclude the direct use of cold fusion in automobiles, home generators and cell phones. It would certainly preclude the use of it in things like flashlights that are used only occasionally. Whereas nickel-based cold fusion with thermoelectric batteries could be used everywhere, for all applications.
In this scenario, we would be stuck with electric power companies, so we could not drastically reduce the cost of energy by a factor of 130 to 1000 the way I described here:
http://lenr-canr.org/acrobat/RothwellJcoldfusionb.pdf
On the other hand, we could phase out all fossil fuel use. Even for transportation, a combination of electric vehicles and synthetic liquid or gas fuel from primary energy sources could replace fossil fuel. This synthetic fuel might be hydrogen, for fuel cell vehicles. Oil would still be used for feedstock. Worldwide, with present day technology and without resorting to widespread use of batteries, I think we could end up with approximately 50% cold fusion, ~20% wind, ~20% solar, and 10% uranium fission, hydroelectric and miscellaneous other sources such as geothermal. Going down this list:
Cold fusion and hydroelectricity are flexible and can be used for either baseline or on-demand generation.
Wind is intermittent and it comes at the wrong time of day, so it is limited to about 20% with today's distribution network.
Solar is predictable and in most locations where it is abundant, it is comes just when it is needed for peak demand.
Fission equipment is expensive and it cannot be turned off at night, so it can only be used for baseline generation.
Miscellaneous sources are miscellaneous.
Here are two excellent sources of information about energy. The U.S. Energy Information Agency, mainly for U.S. stats:
International Energy Agency, for worldwide stats: