Yep, that’s the fun part of this whole cryogenic thing. In order for your body to make it into the 25th century or whatever, it needs to be continuously frozen for multiple centuries.
No defects, no prolonged power outages, no human errors, no your great-great-great-grandchildren deciding they don’t want to pay for keeping a guy frozen they never met.And even if your frozen body somehow makes it to the 25th century and they actually have the technology to restore your freeze-damaged body, you still need whoever’s alive then, to care to actually do that thing…
That’s quite an efficient freezer to be so big and only need up to 15A.
A well insulated freezer that never opens would use very little power once it’s already cooled. The impressive bit of this comic would be large thin pieces of glass providing enough insulation.