☀️ Solar Panel Output Calculator
Estimate daily, monthly, and yearly solar panel output.
📊 Result Chart
About Solar Panel Output Calculator
Estimate daily, monthly, and yearly solar panel output based on panel wattage, sun hours, and system efficiency. Get results in kWh for planning your solar energy system. All calculations run locally in your browser.
Solar Panel Output Calculator in 3 steps
- Enter the panel wattage in watts
- Enter the average daily sun hours for your location
- Enter the system efficiency percentage (typically 70-85%)
How is solar panel output calculated?
Output = Panel Wattage × Sun Hours × Efficiency / 1000. This gives daily kWh. Multiply by 30 for monthly and 365 for yearly estimates.
What is a good system efficiency?
Most residential systems achieve 70-85% efficiency. Factors like shading, panel orientation, and temperature affect real-world performance.
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What is Solar Panel Output Calculator?
Solar Panel Output Calculator is a free online tool that runs entirely in your browser. No download or signup needed — enter Panel Wattage and Daily Sun Hours to get results instantly. All data is processed locally.
Use Cases
- Plan solar panel system size for your home
- Estimate energy output before installation
- Compare output of different panel wattages
- Calculate expected monthly and yearly energy production
Key Features
- Completely Free: No registration, no limits
- Privacy Safe: Data never leaves your browser
- Cross-Platform: Any modern browser
- Zero Dependencies: Open and use