How to explain the number

How to explain the number

1. The energy produced by one ton of uranium is equivalent to about 2 million tons of coal. A thermal power plant with a power of 100000 kilowatts burns thousands of tons of coal a day. If uranium is used instead, only 0.5kg is enough
2. It is predicted that atomic energy power generation will account for one third or even one half of the world's total power generation in the 21st century