Sun Hours Calculator

Find Out How Much Solar Energy You Get Each Day

Discover your location’s solar energy potential with accurate peak sun hour calculations with our Sun Hours Calculator Tool

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Location map will appear here

Solar Energy Potential

Peak Sun Hours

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hours per day

Daily Sunlight

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hours per day

Annual Potential

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kWh per year

Monthly Average

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kWh per month
Enter your location to calculate peak sun hours and solar energy potential.

Monthly Sunlight Variation

What Are Peak Sun Hours?

Peak sun hours represent the equivalent number of hours per day when solar irradiance averages 1,000 watts per square meter. This standardized measurement helps calculate solar energy production regardless of location.

  • 1 peak sun hour = 1 hour of 1,000 W/m² sunlight
  • Different from actual daylight hours
  • Varies by season and location
  • Essential for sizing solar systems

Why Sun Hours Matter

Understanding your location’s sun hours helps optimize solar energy systems:

  • Accurately size solar panel systems
  • Estimate energy production and ROI
  • Determine battery storage requirements
  • Compare locations for solar viability
  • Optimize panel orientation and tilt

Regions with more peak sun hours generate more solar energy per panel.

Increasing Solar Production

Maximize your solar energy yield with these tips:

  • Optimize panel angle for your latitude
  • Face panels true south (northern hemisphere)
  • Keep panels clean and unobstructed
  • Use micro-inverters for shaded areas
  • Consider solar tracking systems

Proper installation can increase energy production by 10-25%.

Frequently Asked Questions

What are sun hours in kWh?
Sun hours in kWh refer to the amount of solar energy received at a specific location. One peak sun hour equals 1,000 watt-hours (1 kWh) of solar energy per square meter. This measurement helps calculate how much electricity a solar panel system can produce in your location.
Is there a sun hours calculator app?
Yes, there are several apps available for calculating sun hours. Our web-based calculator is mobile-friendly and works like an app on your smartphone. Simply enter your location or use GPS to get instant peak sun hour data without downloading anything.
How do I calculate peak sun hours?
Peak sun hours are calculated by converting solar irradiance data into equivalent hours of peak sunlight. Our calculator uses your location’s latitude, longitude, and historical solar data to determine average daily peak sun hours. The formula: Peak Sun Hours = Total Daily Solar Insolation (kWh/m²) ÷ 1 kW/m².
How do I find peak sun hours by location?
You can find peak sun hours by location using our calculator. Enter your address, ZIP code, or use your current location. We access solar databases to provide accurate peak sun hour data specific to your geographical coordinates.