After uranium ore is mined, it is crushed and fed in a slurry form to a mill where it is treated with chemicals to extract uranium. This concentrate is commonly-known as "yellowcake". The product is then shipped to a refinery for processing into uranium trioxide. From there, the material follows one of two paths for future processing.
Compared to other energy fuels, the energy content of uranium fuel per unit of weight is massive. In fact, eight uranium pellets provide enough electricity to meet the electricity needs of the average Canadian home for one full year. A single fuel pellet of uranium also produces as much electricity as 677 litres of oil or 807kg of coal. Canada's uranium reserves contain four times as much energy as the energy content contained in all known Canadian oil reserves (not including the oil sands).
*Source: World Nuclear Association, 2011