Gutted, I would have thought with america been a country that is so much more advanced than some countries that they would cater for people like you.
Sounds to me like your human rights are getting neglected and that to me is unexceptable.
Sounds to me like the energy companies need to look at there code of practice too, not supplying pre payment meters is crazy. we have pay points all of, 90% of shops give you the option to pay at their stores.
I don't know what else to suggest, is there any family members you could ask for help from?