Over here in PA I pay $0.095, so nine and a half cents, per KWh for electric supply, but then I pay that same amount for transmission, so it's functionally 19 cents per KWh, but maybe the person you're replying to isn't counting transmission fees?
I always assume when people on here are talking their 'rates', that they are usually NOT factoring in the delivery fee unless stated.
But maybe some places are just really THAT cheap.
Here in NYC the "supply" charge is much less than half of the total bill. If I add up all the fees and surcharges and taxes etc, the total ends up around 35 cents / KWh, which I thought was rather high until I heard about California ...
In western states such as Oregon, Washington, it is actually 0.12KWH including transmission.