"James Sweet" wrote in message
news:6%%xd.6574$L7.4717@trnddc05...
Not to mention maintenance of it, if a diesel
backup generator sits doing nothing for 25 years chances are it'll do
nothing right when it's needed most.

Aren't diesel backup generator typically exercised something like every week
or so for 15 minutes or somesuch in order to insure that they are ready when
actually needed?