If you have renewable technology, installing batteries will save you electricity, because you will reduce dependence on power grid power. You need to weigh the potential saving and installation costs and the service life of the battery. Battery technology is constantly developing. With the advancement of technology, the service life of batteries is expected to be longer.
When you talk to the installer, ask them to quantify the prediction of service life and cost savings to ensure that you fully understand whether you can save money according to the family energy storage battery before signing any contract. If you combine installation with the benefits of smart use time, you may save more money.