The Global Residential Energy Storage System Market Size is Anticipated to Exceed USD 43.95 Billion by 2033, Growing at a CAGR of 17.61% from 2023 to 2033. A residential energy storage system is a technology that allows homeowners to store electricity generated from renewable energy sources, like solar panels or wind turbines, or from the grid during off-peak hours when electricity rates are lower. The primary purpose of these systems is to provide backup power during power outages, reduce reliance on the grid, and minimize energy costs by using stored energy during peak demand periods.