The thing is, rail and energy are to a great extent bogus choices. For many journeys there's only one possible operator. On short haul services, there's no seat reservation either. So the only possible variable is how far in advance you buy your ticket and what railcards you present.
Electricity is even more bogus: the company you pay is neither the company that owns the generators nor the company that owns the transmission lines. It's a pure middleman. You're locked in a pure struggle with a set of billing systems, which you have to "game" in order to get the best deal.
Electricity is even more bogus: the company you pay is neither the company that owns the generators nor the company that owns the transmission lines. It's a pure middleman. You're locked in a pure struggle with a set of billing systems, which you have to "game" in order to get the best deal.