How do multiblock generators solve "everything takes 10 times longer in SSP"?
They are just "not working properly if you keep them working while you're offline". So basically, you can place them in a World Anchor-ed area, but they will stop working, be damaged and such. (ask Gregfor more details).
I know that's not every single machine, but that's already a buff for guys not counting on Chunkloading to make them progress.