If every German apartment dweller bought and ran an extra 1500W electric heater, then that would have a very noticeable effect on the German electricity grid an

If every German apartment dweller bought and ran an extra 1500W electric heater, then that would have a very noticeable effect on the German electricity grid and overall electricity consumption. This is already an issue in the UK with electric tea kettles during certain times [0], but those are only in use for a very short time, those German electric heaters would need to run a lot to get trough winter. [0] https://en.wikipedia.org/wiki/TV_pickup https://en.wikipedia.org/wiki/TV_pickup