How Much Energy is required to operate the safety and storage facilities for nuclear and radioactive wastes on a Nuclear Power Site and/or a decommissioned site ?

Q.  How Much Energy is required to operate the safety and storage facilities for nuclear and radioactive wastes on a Nuclear Power Site and/or a decommissioned site ?

Without the convenience of an operational Nuclear Power Plant handy what sort of energy demand are we going to need to maintain/upgrade/operate indefinitely?
Can solar energy meet the needs to maintain a Nuclear site when the "nuclear is all dried up" ?   I sure hope so as it would be a dirty switch to operate on fossil fuels.  Not to mention costly and an all round bad time to be getting onto a carbon based fuel.

If you have a good system to farm algae in southern Ontario... contact me!

Does the permitting process currently underway in the province for new nuclear power facilities include a subsection somewhere that states how the facility will be securely sustained from now until forever? 

I would love to see that one.

The energy requirements aside how about management and business side of things.  I can't seem to come with a good example (outside of churches) of a business that has any experience running "forever".  Governments don't have strong track record of stability, flip flopping at least once a decade.

Any thoughts, please share.