Battery backup is not necessary for households. Industry professionals use the word “net metering” to manage the electricity generated by your house and may transmit it back to an electrical grid if connected. Most people are using solar panels for power generation, they don’t have to pay a single penny for the energy they are using. You don’t need a battery to power your home. However, if you live in an area where power failures often occur, your generator may be replaced by a battery backUp.