The answer to this question will depend on the water supply in your home. If you rely on municipal or city water, there are ways to shower even when the power is out.
Heating Systems That Need Electricity: Boilers, tankless heaters, and hot water heaters all rely on electricity to heat the water. Without it, you’ll only be able to take cold showers.
Personal Wells: If you have a private well, you will need to use a pump when the power is out. This can be frustrating and prevent you from maintaining good hygiene during a power outage.
Solar or Camp Showers: Another option is to bring along a solar or camp shower that you can hang out in the sun and use for your showering needs during the power outage. These are relatively simple and require nothing more than a sunny day to function.
If you have a traditional water heater, it will only be able to store a certain amount of hot water at once. As a result, you should be mindful of the amount of hot water you have available and take advantage of it while you have it.
If you rely on a gas water heater, there may be a little more hot water stored in the tank than usual due to the lack of electrical power, but it won’t be enough to give you a full shower. You’ll need to cut your shower short and conserve water to minimize how much you use during the outage.