What is TMY2 data?

What is TMY2 data?

Data and Format For each station, a TMY2 file contains 1 year of hourly solar radiation, illuminance, and meteorological data. The files consist of data for the typical calendar months during 1961-1990 that are concatenated to form the typical meteorological year for each station.

How do I download data from Nsrdb?

NSRDB Viewer Direct Download Instructions

1. Click “Download Data” in the top left corner of the application.
2. Click “Download Solar Resource Data by Point or by Region”
3. Click or draw your area of interest on the map.
4. input your name and email addres (NOTE: A valid email is required in order to receive your download link)

How do I get solar irradiance data?

you can used meteonorm softwar to obtain the hourly data of solar radiation. Check with Indian Meteorological Department, Pune Website-http://www.imdpune.gov.in/ They usually have extensive data and can provide solar radiation data for last many years.

What is solar DNI?

The direct irradiance received on a plane normal to the sun over the total solar spectrum is defined as direct normal irradiance (DNI).

How do I open a Ddy file?

Browse Files

1. 1st Method: Open it in another program. When you double-click DDY files, your computer attempts to open it in a program associated with DDY files.
2. 2nd Method: Take a hint from the file type.
3. 3rd Method: Check with the developer.
4. 4th Method: Open it in a universal file viewer.

Where can I get a TMY3 data set?

The National Renewable Energy Laboratory (NREL) provides a software utility that allows reformatting of the TMY3 data to the TMY2 format. The TMY data sets hold hourly values of solar radiation and meteorological elements for a 1- year period.

How is typical meteorological year data ( TMY ) used?

The most common data for describing the local solar climate is through what is called Typical Meteorological Year data (TMY). To determine TMY data, various meteorological measurements are made at hourly intervals over a number of years to build up a picture of the local climate.

Where can I find a TMY user manual?

This user’s manual describes typical meteorological year (TMY) data sets derived from the 1991- 2005 National Solar Radiation Data Base (NSRDB) update. These data sets provide greater geographical coverage than previous TMY sets with 1020 locations in the United States and its territories.

How is the TMY data for a month chosen?

The data for the month that has the average radiation most closely equal to the monthly average over the whole measurement period is then chosen as the TMY data for that month. This process is then repeated for each month in the year. The months are added together to give a full year of hourly samples.