OpenStream compares retail electricity in the United States one state at a time: Texas, Pennsylvania and Ohio are priced from the state regulator's own offer listing, ranked on price alone.
The cheapest fixed 12-month offer at 1,000 kWh a month in each priced state, on the utility named; a figure means nothing outside its utility, so the states are not ranked against each other.
A state is listed only once its regulator's offer listing is read and its prices rank on a page of their own.