Solar Irradiation Data

Increase the value of your project by reducing your yield uncertainty with accurate and bankable solar irradiation data 

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The most-extensively validated satellite-based solar irradiation data source for solar power modelling

TMY

Typical Meteorological Year (TMY) based on our multi-year satellite-based irradiation timeseries. Available in Europe and Africa.

Exceedance Pxx

Exceedance probabilities tailored to your needs: P75, P80, P85, P90 and P95. Available in Europe and Africa.

Historical timeseries

High-resolution satellite-based timeseries of solar irradiation data available worldwide.

API near real time

Last 7 days to last 30 days to assess the performances of the assets.

Bankable and independently validated data offering global coverage

0.3% mean bias error

Extensive validation campaign including 3rd party, compared over high-quality pyranometers maintained by national public weather services across the world

TMY Pxx

Typical Meteorological Years (TMY) are derived based our historical dataset of solar irradiances, and are likewise delivered at a 15-min, 10-min & 5-min resolution. TMY's can be generated for many different exceedance probabilities, such TMY P50, P90 or P95.

Sub-hourly timeseries

Improve the time resolution of your energy yield and operational performance with sub-hourly resolutions: 15min, 10min and 5min data

Global coverage

Four geo-stationary weather satellites provide us the latest spectral imagery on cloud coverage from all around the globe: Meteosat-11, Meteosat-8 (IODC), GOES-East and Himawari-8. These satellites have a resolution of 2x2 or 3x3 km.

Global, accurate
solar irradiance data

Every 5 or 15 minutes, four geo-stationary weather satellites provide the latest spectral imagery on cloud coverage from all around the globe. In collaboration with the Royal Netherlands Meteorological Institute, this imagery is translated into irradiation data with the most advanced physical cloud (CPP) models available today.

Over the years, 3E has significantly improved the accuracy of satellite-based irradiation data. Our data is constantly evaluated against reference data from over 300 high quality meteo stations across Europe and Africa, making it the most-extensively validated satellite-based irradiation data source available today.

In 2022, Eurac research center validated our data in Europe and concluded that the 3E solar datasets achieved a mean bias error of 0.48% with a standard deviation of 2.3%. The normalized root mean square error ranges from 18% for hourly data to 2.16% for annual data.

  • Modelling methodology
  • Data availability
  • Validations
Image

Historical timeseries
& TMY's

What is it used for?

Solar irradiance data for EPCs and development teams to simulate P50 or P95 long-term yield assessments

Irradiation

  • Global Horizontal (GHI)

  • Diffuse Horizontal (DIF)

  • Direct Normal (DNI)

  • Global Tilted (GTI)

  • And more to come

 

TMY Pxx

Typical Meteorological Years derived from our complete historical dataset of solar irradiances and meteorological conditions. TMY's are delivered at a 15, 10 & 5 minute resolution.

Available for Europe and Africa

Timeseries

Timeseries of the actual solar irradiance & meteorological conditions at a 15-minute resolution. Our irradiance timeseries go back to 2004.

What is it used for?

Solar irradiance data for development and O&M teams to evaluate the performance of solar PV assets in the design & operational stage

Meteo

  • Air Temperature

  • Wind Speed

  • Wind Direction

  • Relative Humidity

Both include

Irradiation

  • Global Horizontal (GHI)

  • Diffuse Horizontal (DIF)

  • Direct Normal (DNI)

  • Global Tilted (GTI)

  • And more to come

 

Meteo

  • Air Temperature

  • Wind Speed

  • Wind Direction

  • Relative Humidity

More than 10,000 assets benefit from 3E's solar irradiation data worldwide

We integrate all your resource data needs for your solar projects in your daily routines.

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