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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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,

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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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haseebnawaz
Weather File Conversion

Can you Please provide the exact code to converter the multiple weather file csv of TMY3 format into SAM Applicable Format , As Micros is doing for every single csv conversion . Thanks Please Give the Exact Code for this above mentioned Problem

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pmoutis
Historical NSRDB zip files not downloading

I'm trying to download yearly weather data from this link https://sam.nrel.gov/NSRDB but whenever I click on any of them it lands me back to the home page. Am I doing something wrong or are others facing the same issue?

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seyong.kim
Creating typical year file from long-term data for wind power performance analysis

Hello,
I am trying to create my own weather file in South Korea for input to SAM wind power performance modelling.
This link (https://sam.nrel.gov/weather) gives me an idea about typical year file but not enough detail to implement it for the wind case.
If I have long-term wind regime at project site in South Korea, say 20 years worth data, derived from MCP (measure-correlate-predict) method, which methods are available for me to determine typical values and derive a set of one year data?

Thanks,
Seyong

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Erik_H
SAM Crashes Using Downloaded .srw Files

Hello,

I am in a renewable energy systems course at the University of Wisconsin and many, possibly all, of my classmates and I are having this same issue. Our assignment asked us to download 2012 NREL WIND toolkit data for a specific zip code (53597) and the data successfully saves to the computer. The file directory looks good and everything. However, once you hit "Simulate," SAM immediately crashes. This is an issue affecting both Macs and PCs.

I have attached my .sam file in case it helps troubleshoot this issue. Thanks for your help!

Best,

Erik

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syj9065
Getting a lot of HTTP 500 Errors when making API requests for CSV download

I am trying to gather weather data in zip code level. When I run my code, a lot of the requests result in HTTP 500 errors, but when I retry the request with the same parameters, it will usually succeeds the second time. What are the reasons that cause this? Thanks.

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