Even the day storing may not be option, my home town chennai got a record rain in last one month with almost no sun for most of the days. Also the only thing that helped people are fossil fuel which is Candle and LPG stoves. The regular coal based thermal power was not there due to shutdown of plant as well as tranmission lines. LPG stove made people stay on first and second floor for two weeks with no need to come down.