Able to leap large deadlines with a single bound

We have a book due on February 15, 2016, which we're working on, even as I type this.  It's a nice book; it would be really bad if something happened to it, like, say, a 10-day power outage in January, or (like last year) only three days out: Christmas Eve, Christmas Day, Boxing Day, taking all of the extra holiday goodies -- and the eggnog!  To avoid similar tragedies, we'd like to install a generator before Winter arrives, approximately in November 2015.