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Solar Panel System Calculator

Calculate panels, battery, inverter, cost & CO₂ savings for any city in the world — free and accurate for 2025.

☀️ 80+ World Cities 🔋 Off-Grid / Hybrid / On-Grid ⚡ 60+ Appliances 💰 Cost Estimate 🌿 CO₂ Savings 🖨️ Print Results

⚙️ System Settings

System Type

Select Your City

Solar Panel Wattage

Battery Voltage

System Efficiency

Battery Autonomy (days without sun)

2 days

Currency for Cost Estimate

* Cost estimates based on current global market prices converted to your currency

⚡ Energy Consumption

Monthly Consumption (kWh)

📋 Where to find your kWh?
Check your electricity bill — it lists monthly kWh consumed. Use a 3-month average for better accuracy.

Quick guide:
Studio / 1-bed apartment: ~150–300 kWh/mo
2–3 bedroom home: ~350–600 kWh/mo
Large family home: ~700–1,500 kWh/mo
Small office / shop: ~400–900 kWh/mo

📊 Your Solar System Results

💰 Installation Cost Estimate — 2025 Market Prices

🌿 Annual CO₂ saved vs. grid electricity

🗺️ Peak Sun Hours by City

📋 Appliance Power Reference — 60+ Devices

Appliance	Watts	Daily Hours*	Daily kWh	Monthly kWh

* Based on typical household usage. Actual consumption varies by model, age and usage pattern.