Documentation Integrations

How to import Solargis data into SAM

Solargis is able to provide suitable data files for working in SAM. Data in SAM csv format is required in this case. The user can select which of the main radiation components (global horizontal irradiation, diffuse horizontal irradiation, direct normal irradiation) will be used during the simulation.

These are the steps to import Solargis TMY data into NREL SAM (tested in version SAM 2017 1.17):

  1. Open a new PV project and select “location and resource”
  2. Then select the option “use a specific weather file on disk” and click browse button
  3. In the browse window select the Solargis TMY SAM supported .csv file and click open.
  4. Under Weather File Irradiance Data, select ‘GHI and DHI’ for simulation with Solargis basic data files, and ‘DNI and DHI’ or ‘DNI and GHI’ for simulation with Solargis extended data files

At this stage, you have finished import of meteo data for a specific geographical site and you can start to simulate the energy output. More information about SAM weather files here.

sam solargis import2

Working with ‘basic’ TMY files for simulations in SAM

NREL SAM does not recognize the upload of Solargis standard .csv data format and requires a different format for the simulation. If you have ordered the ‘extended’ Solargis TMY dataset, we would have delivered it also in SAM format along with the Solargis CSV format by default. 

However, we are still helping our customers with the possibility to upload their already purchased Solargis ‘basic’ TMY data (without DNI parameter). If you don’t have your Solargis dataset in SAM format, please contact our support team at