Global Horizontal Irradiation to POA Irradiation

[dhblum]

This issue is to implement a method to convert Global Horizontal Irradiation (GIH) measurements to Plane of Array (POA) Irradiation, which is useful for more accurate accounting of solar irradiation on facades of specific orientations. Note that methods provided in EnergyPlus weather converter and Modelica Buildings Library require two of three measurements (GHI, DHI, DNI).

As it is common to have only GHI measurements, this issue will implement Decomposition and Transposition models (see e.g. Lave et al. 2015 or Sandia) to estimate POA Irradiation.

[dhblum]

Considering use of https://github.com/pvlib/pvlib-python.