Solar Solar Radiation Data

Forecast and current solar irradiance and weather data with global coverage and real-time accuracy reporting

Solar radiation forecast and actuals data, worldwide

Based on our proprietary cloud and aerosol tracking and forecasting. Updated every 5-15 minutes, with forecasts extending 7 days ahead. Available at 5, 10, 15 or 30 minute time granularity.

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Our customers use our live and forecast solar radiation and weather data to:

  • Monitor and analyse PV production performance

  • Create or improve in-house solar power forecasting

  • Forecast for concentrated solar thermal (CST) generators

Specifications

Data Specifications

Parameters
  • Global Horizontal Irradiance (GHI)
  • Direct Normal Irradiance (DNI)
  • Diffuse Horizontal Irradiance (DIF, DHI)
  • Cloud Opacity
  • Temperature
  • Solar zenith angle
  • Solar azimuth angle

Forecast probabilities:

Additional percentile forecasts (10th and 90th) provided for:

  • Global Horizontal Irradiance (GHI)
  • Direct Normal Irradiance (DNI)

Spatial coverage

All continents (Rapid update actuals and forecast data)

Global (forecasts)

Time granularity

Utility Scale Sites: 5, 10, 15, 20 or 30 minutes (Solar Radiation data is included with Utility Scale Solar Forecasts

Solar Radiation Sites or via Simple Lat / Lon requests: 30 minutes (period mean)

Update frequency

Every 10 or 15 minutes

Time span (Forecast)

Present time to +7 days ahead

Time span (Live)

7 days ago to present time

Time span (Recent)

3 months ago to 2 days ago

API call options

Your choice of either:

  • Lat/lon based Simple Radiation Requests (allows greater flexibility)
  • Creation of weather site (greatest accuracy for the specific point)

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Access solar radiation data via API (including CSV download) and begin your free trial in less than one minute!

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