The Battery Sizing & ROI Estimator is a smart and efficient tool designed for solar professionals and homeowners to determine the optimal battery size based on energy usage and backup requirements. This calculator helps estimate the ideal storage capacity in kWh, the number of batteries needed, and the total investment cost. It also provides a detailed Return on Investment (ROI) analysis by comparing energy savings over time. Whether you’re planning a grid-tied or off-grid solar system, this tool offers accurate sizing recommendations and financial insights to support informed decisions. With its easy-to-use interface and quick results, the Battery Sizing & ROI Estimator simplifies energy storage planning and maximizes long-term solar savings. Ideal for solar installers, consultants, and energy-conscious homeowners.