Seems to me you'd be portable regardless of the source of 
power.  Maybe hard to be mobile whilst on the power grid, however!!
Pat, K9JAUAt 08:52 PM 5/8/2011, you wrote:
>Hi, all.
>
>I struggle with the following question at the beginning of every camping
>season.
>
>What is the proper way for me to identify myself when operating HF in the
>RV?  Does the answer to this question depend on whether I'm just having a
>normal QSO, checking into a net, or working a contest?
>
>Putting a portable designator at the end of my call seems to make sense,
>since I am not at my home station.  However, I usually  run my station via
>commercial  AC power, except on those rare occasions when I want to give our
>generator a work-out.
>
>Any thoughts on this would be appreciated.
>
>73 from Tom Behler:  KB8TYJ