Solar Calculators
Professional-grade calculators to help you size batteries, solar arrays, wiring, and estimate project ROI.
Battery Sizing Calculator
Calculate the optimal battery bank capacity based on your daily loads, backup requirements, and depth of discharge preferences.
Solar Array Sizing Calculator
Determine the right solar panel wattage for your location and energy needs using sun hours and system efficiency factors.
Wire Gauge Calculator
Find the correct AWG wire size based on current, distance, and acceptable voltage drop for safe and efficient installations.
ROI Estimator
Calculate solar system payback period and return on investment based on system cost, utility rates, and energy production.
Off-Grid Load Calculator
Calculate total energy needs for an off-grid system. Add devices by room, set daily usage, and determine Wh/day, Wh/week, and kWh/month with ghost loads and inverter overhead.
Why Use Our Calculators?
Accurate Results
Industry-standard formulas used by professional installers
Product Recommendations
Get matched with products from our catalog
Save & Share
Save your calculations and share with clients
Need help with system design?
Our team can review your calculations and help optimize your system.