Hello Akai San, keokoi, MikeM, and others. Depending on how you have everything setup, you could perhaps have some Battery backups on hand, which come in all shape and sizes, and all sorts of capacity levels to atleast keep air pumps going. APC is a very good manufacturer at these. Perhaps some emergency plan in which you have battery backups keep air pumps moving while you get time to start a generator. I guess like MikeM stated, the best might just be to keep your pond less stocked. But just an idea...
Jesse
