Inconsistent Responses

I wanted to know how much energy a supercomputer consumes in one day, so I queried the following:
How much energy does the world’s most powerful supercomputer consume per day and what is the equivalent?

It returns vastly different answers each time I attempt that query. Any idea why? Is it a poor query?

What I feel I have learned is that ChatGPT is natural language processing, not an encyclopedia. There are a lot of facts it gets wrong.

That said l, if you dial the temperature right down (0.1) it will be less creative with its answers and you may be more likely to get the best answer it can provide.

Maybe you should first try to prompt something like:

What is the name of the world’s most powerful supercomputer?

You must insure you get this question “settled” before you move on to asking questions about it.