Future of UK generated power

[Terry]

Regarding the domestic Fridge.
It could be done by using forced air Fridge freezers where all the cooling is done in the freezer and a fan is used to blow the cold air from the freezer into the fridge to cool it when needed.

How is this more efficient than the conventional fridge/freezer configuration where the freezer compartment (only) at the top of the unit is cooled and cold air from the freezer drops down and cools the fridge section - no fan required using additional power.