Here in England it largely depends if you pay your electric bill to the gas company or the phone company (these days people only seem to pay their phone and gas bills to the electricity company). I pay £27 a month by direct debitwhich they tell me is 6.03 per unit whatever a unit of electricity is. Actually I think that is the standard rate in UK and all the billing companies just offer enticing rebates to get you to sign up with them.