Thanks Les

We have already shifted the cooking to outside kitchen using gas. ( Inside kitchen uses electric)

Never mind that we are in an oil producing country, kersone is not available anywhere. OK, we can find it if we look hard enough , but not like in every store. Candles are more widely available ( scented or non-scented) and our homes are made of concrete not wood, so the danger of fire is minimal.

Buying ice is also a good option. I have to find ice suppliers around town.

The Mist and water-air cooler are good options for low energy cooling . They were on my mind, but I was not sure about buying such a unit for those few days and then if I would really get some power to run then. You gave me the idea ( your word : pressure ) to use one of the water tanks that I am re-purposing anyway, to sit on the roof and supply the little water needed for the cooling mist in the ground floor.

Thanks