Solar Energy Calculator & System Recommendation – Free Sizing Tool ☀️ Solar Energy Calculator & System Recommendation 🖨️ Print 📄 Export CSV 📦 Export JSON Quick Reference Custom Project Quick Reference: Minimum System Sizing House Hotel Small Industry Large Factory / Big Industry 🔌 Connection Diagram 1. Select Project Type House Hotel Small Industry Large Factory / Big Industry 📋 Load Typical Template Project Name (for saving) 💾 Save 📂 Load 2. Add Appliances 📋 Appliance Catalog All Categories ✍️ Manual Input Lighting Television Refrigerator Air Conditioning Washing Machine Kitchen Water Heating Fans Computers Security & CCTV Networking Motors & Industrial Medical Office Agriculture EV Charging Other DC appliance (direct battery) ➕ Add Manual Item 3. Your Appliance List Appliance ↕ Category ↕ Voltage ↕ Power (W) ↕ Qty ↕ Hours ↕ Total W Wh/Day Type Remove No appliances added yet. 4. System Parameters Peak Sun Hours Battery Autonomy Days Battery Type Tubular Lead-Acid (50% DoD) AGM / Gel (70% DoD) Lithium LiFePO4 (90% DoD) Inverter Efficiency (%) Safety Factor Panel Wattage (Wp) Include Grid/Generator Backup? Yes (Hybrid) No (Off-grid) ⚡ Calculate Solar System 5. System Sizing Results 🔌 Connection Diagram 🔧 Advanced Accuracy Adjustments (Optional) Inductive Load Surge Factor Resistive Load Surge Factor Power Factor Panel Temperature Derating Battery Efficiency Ambient Temperature (°C) DC Load Percentage (optional) 🔄 Recalculate with Advanced Settings Reset to Defaults 💰 Economic Analysis (Optional) Solar Panel Cost ($ per Wp) Battery Cost ($ per Ah) Inverter Cost ($ per kW) Electricity Tariff ($ per kWh) Annual Maintenance Cost ($) 💰 Calculate Payback Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Share on Telegram (Opens in new window) Telegram Share on WhatsApp (Opens in new window) WhatsApp Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email Share on Bluesky (Opens in new window) Bluesky Share on Reddit (Opens in new window) Reddit Share on Threads (Opens in new window) Threads
