I have a character in my story (set in 1998) who has been magically altered in three major ways:
1: She cannot be remembered for longer than 60 seconds without continuous exposure to her by one of the five senses. By the time the 60 seconds of not being in her presence are up, all memory of having ever encountered her will completely vanish.
2: Any second-hand direct recreation of her image or voice (photos, videos, tape recordings, etc.; drawings don't count) are impossible to acknowledge. If she's in a group picture, you simply won't notice her. If she's the only person in the picture, you'll think you're looking at a picture with nobody in it. If she makes up most or nearly all of the picture, you won't even be able to recognize you're looking at a picture at all.
3: She can, at any time, transform into an invisible, incorporeal, flying phantom form that can see through walls. She cannot be selective about this, and thus can't "ghost" anything through walls with her, and in fact leaves her clothes completely behind too and has to get new ones wherever she chooses to re-manifest.
This, naturally, has made it basically impossible for her to properly participate in human society. She can't get a job, can't go anywhere that requires a photo ID, can't even go anywhere where it would be weird not to recognize someone. My initial idea was that she'd live out of a stolen RV near a small Idaho town, until I discovered I had been grossly overestimating what the internal battery of an RV is capable of powering without being directly plugged in to a power source at an RV campground, which I suspect she wouldn't be able to use without arousing excessive suspicion. This is a problem, because one of the things I want her to be doing in her copious amounts of free time before the plot starts is playing video games, including home console games that she'll obviously need a proper power source to use. So I thought I'd check here if there's a more obvious solution.
Given her above abilities and limitations, what is my heroine's easiest method, legally or otherwise, of securing a source of power with which she can, bare minimum, play video games undisturbed?