Weather Data

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Paul Gilman
Weather Data

Are you looking for weather data to use with SAM? SAM can automatically download weather files from the NREL National Solar Radiation Data base (NSRDB), which covers locations in the Western Hemisphere from roughly 20° South to 60° North, including the continental United States, Hawaii and southern portions of Canada and Alaska, Caribbean, Central America, and northern South America (including most of Brazil). The NSRDB data also covers South Asia and parts of Central Asia, China, and Southeast Asia.

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trent_hawkins83
Weather files for Australia gone

I have just upgraded System Advisor Model to the latest 2018 version and I am no longer able to access any Australian weather data.

This is an incredible shame and has rendered SAM useless to me. Given I can go online to PVWatts and simulate PV generation for a significant number of locations in Australia, the inability to do this in SAM is mindblowing. I guess I could pay the $250 to purchase the ASHRAE files, but maybe i'll just have to invest in a more functional tool.

Please advise if I'm missing something here - I really hope this to be the case.

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J. Velázquez
Trouble selecting weather Data

I have already downloaded the update for the SAM 2018.11.11, but still i can´t select a weather data for my location, not the ones that i have downloades previusly, nor can download them directly from the sam location and resource, when i try to do any of the above the program starts updating info in the latitude , longitude, time zone, elevation... to finally leave the program.

How can i fix this issue?

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J. Velázquez
Trouble selecting weather Data

When i try to select a weather data file (that i used in the past version of SAM) the program starts changind data and it closes right away. ¿How can i fix this issue?

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CrowdPowered
CrowdPowered's picture
epw downloaded from JRC

The weather data downloaded from the JRC website is causing an error with SAM version 2018.11.11.
If you ignore the error, the simulation will crash.

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sjschneider
Generate P90 "TMY" Files from Longterm Timeseries Data

Hello,

Does SAM have the ability to generate TMY files to a set confidence interval? I suppose these wouldn't be typical (P50) anymore, but the point is to represent with a single 8760 hourly file the solar + weather resource to a particular level. It would have all of the same compromises and utility as a standard TMY file.

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saman1368
Single_year Weather Data download

I was able to download single year solar weather data last week using TMY or Single-Year for Americas and Asia feature of SAM, but now it gives me the following error "Could not process returned JSNO for ..." can you please advice on that

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seyong.kim
Wind speed and direction estimation for different hub height

Hello,

I am using own weather files based on MERRA-2 which provides wind speed and direction at 2, 10, 50 m and I want to simulate energy yield at different hub heights, for example, ranging from 80 to 120 m.

As per SAM help manual,

1 post / 0 new
craigl33
windpower SSC module and input from memory

Hi there. I am trying to script with SAM SDK using the windpower module. I wish to make use of the wind_resource_data SSC input that allows the weather data to be input directly from memory as opposed to in an SRW file, but it does not mention the required data and their respective keys (as done with the PVWatts module).

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haseebnawaz
Weather File Conversion

When We Use Macros to convert TMY3 File to SAM Weather Model format , MACROS Converts the file Successfully but in the converted file every time for every file Country name SET "USA" While the Rest of information according to input file is perfrect.
Please Correct this issue which make the country name as "USA" Every time !
Kindly Check also 'wfcsvconv' Function.

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