have to
"Here's how much energy the sun has to give away."

In this sentence, what does the "has to" mean?

Question

have to
"Here's how much energy the sun has to give away."

In this sentence, what does the "has to" mean?

Answer

The sun has energy. Don't be confused by the "have to" part - that piece of grammar doesn't apply here (How do we know? By looking at the full sentence.).

You can understand the sentence as,

"Here's how much energy the sun has, which it can give away."

Answer

Thanks a lot!