Double check the table on that article, particularly the scale.
Then as a quick sanity check, consider whether the thing you are actually predicting will in fact use more electricity than the world uses, and still carry on growing exponentially.
The scale on the left is orders of magnitude
1.00E+3 is 1000, 1.00E+4 is 10000, do you have a different interpretation?
The benchmark line on the graph shows that by 2040 we'll be using 1.00E22 electricity versus 1.00E21 world usage. So that means we'll be using 10 times more electricity on computing than everything else. And the lines seem to cross at about 2037. Do you think we can increase electricity production 10 fold in 3 years?
Then as a quick sanity check, consider whether the thing you are actually predicting will in fact use more electricity than the world uses, and still carry on growing exponentially.