we get most of our electricity energy from coal.
we get most of our electricity energy from coal.
where do we get most of our electricity energy from?
coal
Na
Na
with figure 4 of the paper, expanding on these figures, displaying the median result returned from these other papers as approximately 35 g -eq/kwh when a nation's background electricity "energy mix" is "high carbon" that is, primarily coal powered, combined with a slightly lower than typical uranium ore grade input in the range of 0.01% u3o8. to put this number in perspective, average uranium ores are between 0.05% to 0.40% u3o8, with the ore at the most productive uranium mine in the world, mcarthur river uranium mine, at approximately 15.76%. the high rate of near 110 grams of ghgs mentioned in this yale paper, as shown in figure 4 and discussed in the body of the article, is derived from what the authors consider to be a "worst-case scenario" that is not "considered very robust". as it is inclusive of a combination of unrealistic factors not seen in any country. this is, a high coal usage in the electricity energy-mix combined with the terrestrial mining by conventional methods, of ultra low-grade "uranium ore" with a "0.0001%" concentration of u3o8.
life-cycle greenhouse-gas emissions of energy sources