Solar Panel + Battery Storage Simulator

Solar calculator for panel sizing, battery storage, off-grid autonomy, EV load planning, and cost/ROI analysis.

Solar Calculator: Panel + Battery Storage Simulator helps you design complete solar energy systems with practical, no-API global presets. Plan your setup by location, climate, and energy usage to estimate: - Solar panel array size - Battery storage capacity - Days of autonomy (usable battery) - Daily, monthly, and annual energy production - Total system cost, annual savings, and payback period Built for real-world planning: - Country and city presets (offline) - Hemisphere-aware orientation and tilt defaults - Climate-based monthly production forecast - EV load impact modeling - String vs micro inverter planning support - Bill of materials and equipment recommendations - Exportable report and CSV outputs If you’re searching for a solar calculator, solar panel calculator, battery storage calculator, off-grid solar calculator, solar ROI calculator, or solar payback calculator, this extension is designed for those workflows.