There are two things you are paying for when you buy electricity - the electricity itself and the guarantee that when you flip a switch you get power.
Different energy sources contribute unequally to that second important factor - the stability of the grid - and that has to be factored in somehow. Nuclear, gas, hydro-electric storage and buying from abroad provide that stability in the UK.
How it's done - I've no idea - but it's not just a question of units of electricity.
One way is to bring in more surge pricing however people like the predictability of stable prices.
Different energy sources contribute unequally to that second important factor - the stability of the grid - and that has to be factored in somehow. Nuclear, gas, hydro-electric storage and buying from abroad provide that stability in the UK.
How it's done - I've no idea - but it's not just a question of units of electricity.
One way is to bring in more surge pricing however people like the predictability of stable prices.