Wind

Wind power tagged content

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seyong.kim
description for detailed offshore balance of system cost model inputs

Hi,

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seyong.kim
How could I look at python codes for wind_obos module?

Hi,

I simulated a model for offshore wind farm in SAM and generated a Python codes.
While I am reviewing the codes and trying some modification for iterative simulations, I cannot see how wind_obos module works from the generated code, for example, setting input variables for wind_obos (offshore balance of system model), executing wind_obos module, and retrieving the output etc.

Does anybody know how to work on this?

Best regards,
Seyong

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seyong.kim
Prevailing wind direction and wind farm orientation

Hi,

I have one simple question regarding prevailing wind direction and wind farm orientation.
I want to model a wind farm facing a prevailing wind direction NNW so I put -22.5 degree into row orientation and wind energy generation shows better performance than other orientation value. but in turbine layout map, it looks like the wind farm faces NNE as you can see it from attached screen capture.
Could you please clarify why it looks like that?

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negareh
Creating SRW file

Hi.Can anyone tell me what program or software should I use to create a SRW file?

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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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seyong.kim
Offshore BOS variables for statistical analysis

Hello, I have some question regarding offshore balance of system variables for statistical analysis as listed below.

1. Are offshore BOS variables not available for input to parametric/stochastic analysis?

2. most of offshore BOS variables shows non-relevance to tornado chart output such as levelized costs and total installed costs even with extreme change (up to 100%) of input variables, is this already known problem and any way to fix it?

Regards,
Seyong

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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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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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Paul Gilman
Wind resource data time zone in UTC instead of local time

For details, see:

https://github.com/NREL/SAM/issues/83

Best regards,
Paul.

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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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