[jakobnev]

Well the idea was to use molten salt as heat storage, just as in new power plants that generate electricity around the clock. That way heat can be stored in a high temperature high quality fashion, that is capable of driving absorptive heat pumps for heating and cooling and for power generation.

A key point is to not convert energy to electricity unless you really need electricity, for example: water heaters, stoves, dish washers and washing machines all need heat. And it would be wasteful to convert energy into electricity just to drive a ceramic heating element in any of them.