Wind

Wind power tagged content

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Mo11068
Running the C program of the wind module

Hi,

I have been trying to run the SAM's C code generated in command prompt. I have used the following command

gcc -o Golden Golden.c

Golden is my file name. However, I have received the error of "undefined resources" which is mostly related to the sscapi.h header file.
Could you please help me about this?

Thanks,
Mohammad

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ozsolarwind
Accessing windpower module output in Python

I've recently noticed that retrieving the 'gen' array - Total electric power to grid' is much slower than earlier releases of the SDK. The change actually occurred somewhere between Build 174 and 180. Is there a better way to access this data or is it due to some internal change?

I'm using Python 2.7 and the relevant code is:


clock_start = time.clock()
module = ssc.Module('windpower')
print time.clock() - clock_start
farmpwr = self.data.get_array('gen')
print time.clock() - clock_start

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smishra732
entering 35040 wind_resource data but SAM outputs 8760 generation

Hi Paul,

My goal is to output system generation (or system power) given wind_resource data as input to SAM. I am giving 35040 wind_resource data but the output is 8760 generation. The code is:

ssc = PySSC()
ssc.module_exec_set_print(0)
data = ssc.data_create()
module = ssc.module_create('windpower')

wind_resource = ssc.data_create()

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Thomás Augusto
Thomás Augusto's picture
How to find wind data for Brazil in .srw format

Hi,
I would like to know where I find wind data information for Brazil, on the website at NREL you have only for the US I am using SAM to do an academic job and would like to simulate a wind project located in Brazil, and I can not find data in .srw format as SAM requests.

Thank's fot the moment ..

Thomas.

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seyong.kim
Turbine tower cost estimation

Hi, I have some questions regarding turbine tower cost determined by SAM cost database.

Based on the SAM documentation review, it looks like that tower cost is included in turbine cost.
If it is, as SAM use a fixed cost per turbine rating based on 2015 installed cost for offshore turbine, change in tower cost for different hub height will not be captured.
It is also found that change in hub height does not affect substructure and foundation cost when the jacket type substructure is selected.

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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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