Global Horizontal Solar Irradiation for Alberta and BC.
- Derived from SUNY hourly satellite data from 2002 to 2008 ( 10 km x 10 km area)
- GHI = Global Irradiation on a horizontal surface in kWh/m2/yr
- GHI contains both direct and diffuse energy.
- Tilted PV arrays or sun tracking systems will yield higher energy value than a horizontal surface. GHI is not representative of PV potential, specially in high latitudes.