We have candles for light and big fat candles which when lit, give off quite a bit of heat. I bought new hot water bottles earlier this year, we have blankets, foil blankets a wind up radio, gas portable stoves and spare canisters, camping kettles and saucepans, a power pack for phones and iPads, we also use MrOops phone as a hot spot.
We also have rechargeable torches and a newly cleaned chimney for an open fire. Plenty of tinned food in the garage.
We will be fine but I don’t look forward to it, reminds me of the early 70s with our power cuts.
Next door has the noisiest generator that sounds like a tractor and kicks in when he has a power outage, so he will be fine!