Paul, you're correct in saying that energy suppliers stopped applying standing charges across many of their tariffs a few years ago. This was in response to customers who disliked paying for the standing charge. The way we now charge ensures that the cost to actually supply the energy is spread across the entire customer base. A single unit rate, which incorporates all costs would be detrimental to those who have to use higher than normal levels of energy to stay safe and warm - such as the elderly or those who have an illness.
We're open to any suggestions and will pass on your comments to our product teams to look at whether a single unit rate tariff is feasible for those who want it.