National Solar Radiation Data Base 1991- 2005 Update: Typical Meteorological Year 3. Brief Summary of the TMY3s. This directory contains the data files for the typical meteorological year (TMY) data sets derived from the 1961-1990 and 1991-2005 National Solar Radiation Data Base (NSRDB) archives. Because they are based on more recent and accurate data, these new TMY3 data sets are recommended for use in place of earlier TMY2 data. The TMY3 data set contains data for 1020 locations, compared with 239 for the TMY2 data set. The TMY3s are data sets of hourly values of solar radiation and meteorological elements for a 1-year period. Their intended use is for computer simulations of solar energy conversion systems and building systems to facilitate performance comparisons of different system types, configurations, and locations in the United States and its territories.
Because they represent typical rather than extreme conditions, they are not suited for designing systems to meet the worst-case conditions occurring at a location. TMY, TMY2 and TMY3 data sets cannot be used interchangeably because of differences in time (solar versus local), formats, elements, and units.
Obtain the latest weather files for global locations, future climate predictions and CIBSE When you install the Standard Data & Weather Files as part of the IES VE Weather files for more than 2,100 locations can be downloaded from the US. Weather data for more than 2100 locations are now available in EnergyPlus View and download EnergyPlus weather data directly using a.
Data and log file. Raw data directly from the logger, 1 minute sampling (updated hourly): Weather station raw data CR10X1.DAT (comma. All 16 CTZ2 weather files are available for download in EnergyPlus weather format. The original source data is available from the California.
A weather file may contain typical-year data that represents SAM's wind power model can also download weather data from the NREL WIND.
Unless they are revised, computer programs designed for TMY and TMY2 data will not work with TMY3 data. NREL provides a conversion program to reformat TMY3 data to TMY2 data (see the Software section below.
The TMY3 data sets and manual were produced by NREL's Electric Systems Center under the Solar Resource Characterization Project, which is funded and monitored by the U. Department of Energy's Energy Efficiency and Renewable Energy Office. 19-JAN-2015 NOTICE. Revision of TMY3 Weather Files. White Box Technologies (WBT), in collaboration with the National Renewable Energy Laboratory (NREL), has revised the TMY3 weather files to correct inconsistencies in units for illuminances, improve the reporting of Liquid Precipitation, replace all missing records with interpolated or filled values (chiefly for visibility, ceiling height, aerosol optical depth, and albedo), and add a new variable for Present Weather.
The intent of this revision is not to redo the fundamental analysis, but correct some known errors and make modest improvements in the reporting of subsidiary climate variables. The only impacts from these corrections and changes are for daylighting simulations that use the illuminance values, and for building simulations that use the liquid precipitation to model green roofs or moisture transport through the building envelope.
The addition of Present Weather may be of use to simulation programs that keep track of rain or snow fall, and is also helpful in assessing the reported liquid precipitation. Filling in missing data for Visibility, Ceiling Height, etc. should have no impact on the use of the TMY3s, but improves their overall record-keeping.