Use SAM's Solar Resource File Converter macro to convert SolarAnywhere files to the SAM CSV format. Model-generated data from various sources. The following sources are are for commercial data products that will work with SAM: Source Use makeweather2 program in toolkit or download separate sen_makeweather_getmerra2 package. Single-year (1979 - present) from NASA MERRA-2.
TMY2 files are also available in SAM CSV format ( ZIP 23.3 MB). If the file selected is not one of the above types, you will be cautioned to use the override default type button to select the correct type before proceeding. Of course, the all files (.) may be used as well.
Original typical-year hourly data files with additional data and documentation for legacy NREL NSRDB 1961 - 1990 (TMY2), 1991 - 2010 update (TMY3), and 1998 - 2014 update (TMY3). &0183 &32 WEA Ecotect WEA file : Input File Extensions with implied Data types. Typical-year hourly data from various sources. Single-year hourly data (select years between 19). The following sources in addition to the NSRDB provide free weather data: Source If you know of other data sources to add to this list, please contact us. If you are looking for snow depth data to use with SAM's detailed photovoltaic model, please see this post on the SAM forum. You can use the Download buttons on SAM's Location and Resource input page to download NSRDB data directly from SAM.
The NREL National Solar Radiation Database (NSRDB) provides free time series weather data for many countries of the world. Where to find Solar Resource Data to Use with SAM
The Help system is available in SAM from the software's Help menu, and as a PDF file on the Download page.įor a description of SAM's weather file formats, see the "Weather File Formats" chapter in SAM's Help system, or download the PDF excerpt from the Weather Data Publications page. The solar resource and meteorological data in a SAM weather file may have been developed from ground measurements, data from a satellite, or a combination of the two.įor more information about weather data for SAM, see the "Weather Data" chapter in SAM's Help system. A weather file may contain typical-year data that represents long-term historical data or single-year data for a particular year. The data describes the solar resource or wind resource at a particular location. The reliability and accuracy of the new TMY in representing the local climate conditions are much improved.A SAM weather file is a text file that contains one year's worth of data in hourly or subhourly time steps.
The representativeness against the long-term climate of the three antiquated TMYs and the new one was discussed with a simulation-based comparison from 12 existing buildings.
It was found that Kuo’s model, which has its coefficient been adapted to the local weather and further uses solar altitude, the daily clearness index as predicting variables, performed best and was used herein. To this end, the observed diffuse irradiance data of an in-situ experiment was compared to the DFM modeled values to identify the suitable DFM. A 2.30%–5.18% range of annual cooling load variation was observed, which drove a need for searching suitable DFMs. As no beam or diffuse solar irradiance data have been recorded at local weather stations, a preliminary study on the influences of currently available hourly solar diffuse fraction models (DFMs) to the building cooling loads was performed. We intend to construct a new typical meteorological year (TMY) for Taipei. ECOTECT is a complete building design and environmental analysis tool that. As cooling and heating energy consumptions of buildings are closely related to outdoor climate variations, the reliability of building energy simulation results is significantly influenced by the accuracy of weather data being used. Use Climate Consultant and the Weather Tool to determine design strategies.