Solar Energy Services for Professionals
The project | Overview | References

Time Series of Solar Radiation Data - for Free

A problem of units ?
of terminology ?
Consult the Education service.

To launch a service, click on the appropriate button (rectangle) on right.

INFORMATIONS about:
- the different plane orientations and radiation components and their usage,
- how the data are aggregated from the 15-min Meteosat satellite images,
- link to the corresponding services for Registered Users only
News! our most advanced version of HelioClim (3) has now been fully compared with all the ground station irradiation values available in Mines ParisTech. According to our test, HC3v3 provides better statistical results than HC3v2. All the results will be available in the next version of the website, available by the end of the year 2012.

Summary of the free data:

  • HC1: whole dataset without restriction (i.e. from 1985 to 2005, approx. 20 km spatial res)
  • HC3: all the services but restricted to 2005.
  • NASA-SSE: whole dataset without restriction (from July 1983 to June 2005, 1 degree of spatial res)
  • NASA-SSE + HC1: whole dataset without restriction (best spatial resolution between NASA-SSE and HC1)

Radiation data
Horizontal Plane
global radiation
Inclined Plane
global, direct, diffuse
Plane normal to sun rays (DNI)
global, direct, diffuse
Month
Week
- -
Day
Hour
1 min to 30 min

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