Water heating
There are 3 main types of electrified water heating, resistance electric water heaters which many homes already have, heat pump water heaters, and solar water heaters. For most small homes, a resistance electric water heater will be the best option, and for big homes a heat pump water heater. It's important to get a water heater with a large tank, so your solar can be used to heat up the water during the day and keep it hot.