Wattora:Solar Power Calculator

Wattora is an all-in-one solar, electricity, battery and power calculator designed for homeowners, solar users, electricians, technicians and anyone who wants to understand energy usage more easily. With Wattora, you can estimate solar system size, electricity costs, battery backup time, appliance loads, inverter requirements, EV charging costs and more — all from one simple app. ⚡ KEY FEATURES • Solar System Calculator Estimate the solar panel capacity needed based on your daily energy use, peak sun hours and system efficiency. 🔋 Battery Backup Calculator Estimate how long a battery can power your appliances using voltage, battery capacity, load and efficiency. 💡 Electricity Cost Calculator Calculate daily, monthly and yearly electricity consumption and cost using your own electricity tariff. 🏠 Appliance Load Calculator Add appliances such as lights, fans, refrigerators, TVs, air conditioners and computers to calculate total power demand. 🔌 Inverter Size Calculator Estimate a suitable inverter capacity based on running load, surge load and safety margin. ☀️ Solar Panel Calculator Estimate the number of solar panels required for your target system size. 💰 Solar Savings Calculator Estimate potential electricity savings and simple solar payback time. 🚗 EV Charging Calculator Estimate EV charging energy, charging time and electricity cost. 🔋 Battery Bank Calculator Calculate estimated battery capacity and battery bank requirements for backup systems. ⚡ Voltage Drop & Cable Tools Estimate voltage drop and cable requirements for planning purposes. 📊 Calculation History Save and review previous calculations directly on your device. 🌍 BUILT FOR INTERNATIONAL USERS Wattora supports flexible electricity rates, currencies and units, so it can be used in different countries. You can enter your own electricity price, solar conditions and system information instead of relying on fixed regional values. 📱 SIMPLE & EASY TO USE Wattora is designed with a clean interface and straightforward calculators so you can get useful estimates without complicated setup. Most calculator features can work offline. No account or sign-in is required. IMPORTANT Wattora provides estimates for informational, educational and planning purposes only. Actual solar output, battery performance, electricity costs, inverter requirements and electrical installation specifications may vary. Always consult a qualified electrician, solar installer or engineer before purchasing or installing electrical or solar equipment. Plan smarter. Understand your power. Go solar with Wattora.