The public is generally not allowed to finance nuclear. I don't know about your state but a lot of them don't allow for rate payers to finance new construction so the interest payments need to be covered by the profit margin until the plant is operational and then you can start using the electric rate to pay off the principal of the loan.

This is a giant issue with nuclear as you're going to be financing it for decades while solar/natural gas will be producing in a year or two.