Power Estimator

Accurately predict off-grid power needs with real weather data, beautiful charts, and multi-day forecasting. Perfect for solar, RV, and remote off-grid systems.

Power Estimator is the essential tool for planning and monitoring off-grid power systems. Whether you're designing a solar installation, managing an RV setup, or maintaining a remote cabin, this calculator provides accurate battery charge predictions based on your specific configuration.

Key Features: • Solar Power Optimization - Configure panels with efficiency factors, shading, and real-time weather integration • Real Weather Data - NOAA integration provides accurate solar generation based on your location's sunrise, sunset, and cloud cover • Battery Management - Track charge levels over time with percentage, watt-hour, and voltage display modes • Load Scheduling - Set up primary loads and additional devices with custom time schedules • Multi-Source Power - Include generators and other power inputs in your calculations • Interactive Charts - Visualize battery levels, solar generation, consumption, and weather conditions • Multi-Day Forecasting - Plan ahead with calculations spanning days or weeks • Location Flexibility - Use GPS or enter custom locations for weather-accurate results

Perfect for solar installers, RV enthusiasts, off-grid homeowners, and anyone planning power-independent systems. Get precise estimates to ensure your batteries never run out when you need them most.