Some of us are old enough to remember when Maggie Thatcher decided to cross swords with Arthur Scargill, and the result was rota power cuts of up to 16 hours a day, and even then, if the house was all electric, that was a problem.
Now, with the way that technology is changing things, imagine the implications of no power for long periods of time across an entire area, No light, no heat, no cooking, no communications or internet, the potential for freezer contents to spoil, and in a few years time, the possibility that it won't be possible to get to work the next day because the car battery hasn't been charged overnight. In some areas, it won't even be possible to call emergency services, depending on how the phone in the house is connected to the local exchange and then onwards to the network.
These sorts of issues could happen as a result of just a lack of wind, or as a result of severe weather damaging the infrastructure, and the race to the bottom has meant that there is not the investment in resilience or spare capacity to try and ensure that there is capacity to deal with unexpected events. I won't go on to discuss the potential for more disruption as a result of someone turning off the gas taps on the supply from Russia.
A long time ago, I had to put in a substantial generator to ensure that the computer I had here could be operated even if the power was off. The computer was sold off a long time ago, but given the uncertainty of the future, I decided that I would not sell the generator off, and given the way things are looking for the future, I may well end up being very happy that I can keep most of the house going even if the supply has gone out.
Favourite phrase of sales men across the world is "It'll be grand", and they're never anywhere to be seen when for whatever reason, it's NOT grand. Properly evaluating the real risks is a skill that too many people seem to be willing to ignore, and the result is too often a nightmare as a result.