Typical Meteorological Year (TMY) Global Horizontal Irradiance data for Distribution Network Operator areas
The spreadsheets available for download below contain hourly TMY Global Horizontal Irradiance values generated from the 2005-2014 decade for each of 12 UK Distribution Network Operators. Global Horizontal Irradiance in Wh/m^2.
The Global Horizontal Irradiance data is initially interpolated to each Distribution Network Operator area from UK Meteorological Office measured values. The TMY for each DNO is calculated as follows:
- For each month in the year (i.e., Jan., Feb., March, etc.), the ten-year monthly mean of irradiance data is obtained for the period 2004-2015.
- The historic month that most closely matches the ten-year mean for that month is identified i.e. the most “typical” month.
- The hourly data values from the twelve typical months are combined to create the typical year file. This might comprise e.g. January from 2010, February from 2005, March from 2007 etc.
This simple method has been shown to perform well compared to other free-to-download TMY datasets.
If you make use of this data, please:
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