What is an NCR? Nigh storage rads? If so, then say that.
Night storage rads are basically crap. They tend to be big and don't give out heat when you want it.
The only time electricity is viable for space heating is when the house is highly insulated. One current thread someone mentioned his friend did this and his heating system rarely comes on. Swedish insulation levels. In fact he is insulated to higher levels as we have a temperate climate.
Electricity tends to be "service" free, but not maintenance free. Things do go wrong. In a highly insulated house it may be worth having individual wall hung electric heaters that can be unplugged and replaced by the user to avoid maintenance bills. It is usually cheaper to replace than repair these days.
But!! Try selling a house with electric CH, even though it may be cheaper overall. Myths go for decades. Another myth is forced air too. "Much" superior to a rad system if well designed and fitted, but the stigma of the
1960s cheapo systems council blocks lives on.One classic case was in Milton Keynes in the early 1990s, when one of the countries first heatingless eco houses in Energy Park went on sale. The dumbo estate agent dropped the price by £2 to 3K as it never had a heating system.