Mike, see below, I was just told all the outets are reserved.

So I went into my Macgyver mode. :}

lots of options depending on the location

Honda generators very quiet but need to run outside

Car battery and car adapter for the laptop

jumpstart box similar to car battery above

bring multiple charged UPS's. Make sure they are the kind where you can disable the warning beep when there is no power

There are batteries you can buy that you can plug into the back of the laptop. a company called powerplant. awesome batteries. used to use one for long flights.

extra batteries for the laptop work as well