Tools
Free Solar & Battery Calculators & Tools
Empower your energy decisions with Sterapower's suite of free, easy-to-use online tools. Get instant insights into your solar potential, battery performance, and system costs—all from any device.
Featured Tools
🔋 Battery Backup Time Calculator
Estimate how long your battery will last during a power outage based on its capacity and your connected load.
Use Calculator⚡ Solar vs. Generator Cost Comparison
Compare the long-term financial and environmental costs of solar power versus a traditional generator.
Use Tool☀️ Solar System Sizing Tool
Get a personalized recommendation for the ideal solar system size to meet your specific energy needs.
Use ToolBrowse All Tools by Category
🔋 Battery Management Tools
Understand and optimize your battery's performance and lifespan.
Battery Charging Time Estimator
Calculate the estimated time required to fully charge your battery.
Use EstimatorBattery Depth of Discharge (DoD) Calculator
Determine the safe discharge level for your battery to maximize its lifespan.
Use Calculator💡 Solar System Planning & Sizing
Size your solar system and components correctly for your needs.
Solar System Load Calculator
Determine the total power consumption of your appliances for accurate solar system sizing.
Use CalculatorInverter Selection Calculator
Find the perfect inverter size based on your power requirements.
Use CalculatorSolar Savings & ROI Calculator
Estimate your potential savings and return on investment with a solar power system.
Use Calculator🔌 Generator & Stabilizer Tools
Ensure your backup power and protection are perfectly sized.
Generator Sizing Calculator
Calculate the right generator KVA rating for your specific power needs.
Use CalculatorStabilizer Sizing Calculator
Calculate the correct Stabilizer KVA rating to protect your appliances.
Use Calculator🚨 Safety & Costing
Plan for safety and budget accurately.
Fire Alarm System Cost Estimator
Compare prices from different installers to ensure you get a fair price.
Use Estimator