Wind

Wind power tagged content

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luigiboffino
NREL AWS Truepower representative wind file

Hi

I am trying to understand how the NREL AWS Truepower representative wind file is built. Can already be considered an average of wind dataset in that specific area? If so, any clue of how big was the original sample?

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ivonnepena
Read srw correctly

Hi Paul,

I am trying to read a srw wind weather file in SAM store in my laptop. I am using OX. These are the steps I followed:

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FabienC
Generic storage for Wind farm

Hi dear developers of SAM,

I'd like to simulate the impact of a storage technology on the output (financial & power) of a wind farm. However, I haven't found if it was possible to add storage to a wind project. I found this option in PV project but here, it was specifically for inverters.

Have I missed something, or do you think it's even possible ?

Regards,

Fabien Chaufournier

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Veranika Hadun
Download Wind data by latitude and longitude

Hello,

There is a possibility in SAM desktop application to download a wind resource file from the online NREL WIND Toolkit in .srw format. I need to download these .srw files for the number of locations according to their latitude and longitude. I wonder if there is a possibility to download these files with the help of SDK?

Thank you,
Veranika

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justaskingonequ...
Wind Resource at More Hub Heights or Shear Coefficient

Hi,

The downloadable wind resource files from the online NREL WIND Toolkit features only hub height of 100m.
Using those files, I will have to enter a shear coefficient in the Wind Turbine section since SAM will not be able to calculate it without more information from other hub heights.

Is there an average shear coefficient or wind resource files for more hub heights that I can use to representatively simulate over Texas, U.S.?

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justaskingonequ...
Downloaded Wind Resource Files Lead to Zero Energy Production in SAM

Hi,

For the downloadable wind resource files from the Wind Toolkit in SAM, the simulation will always lead to zero energy production for some regions.

Let's take, for example: lat 35.98 lon 101.75, lat 39.74 lon 104.99 or lat 35 lon 101, which are all located in the upper region of Texas just north of Amarillo, will lead to zero energy production in simulations.

However, just south of that, at a random lat 31.29 lon 100.72, which is still in Texas, will lead to proper values.

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MatthewSteen
MatthewSteen's picture
Downloaded Wind Resource Data Missing Pressure Data

Using a wind resource file downloaded from the WIND Toolkit in SAM does not seem to work in 2016.3.14. It appears that the pressure column is missing data since every row is 0 atm. This results in zero kWh production. I've also noticed that there are more than 8765 rows in the downloaded data compared to the representative typical wind resource files.

Matt Steen
Building Performance Engineer
Ambient Energy

1 post / 0 new
Paul Gilman
Wind resource data

I have wind resource data in a spreadsheet. How can I use it in SAM?

SAM's wind power model reads weather files in the SRW format. You can find a description of the format in SAM's Help system (See Weather File formats under Weather Data in the table of contents). You can also find examples of files in the wind_resource folder of your SAM installation (in Windows, by default the folder is in C:SAM/2016.3.14/wind_resource).

Best regards,
Paul.

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Michael Russo
Wind resource files and shear coefficient

Hello! I have a question about what value of hub height and shear coefficient to use. All my data in the SRW file I am using in SAM is at the height of 10m. But when I want to use the 10m height for my turbine hub it says that the turbine hub height is more than 35m shorter than the measured resource data, which is not true because in the file I specifically said that every variable is at 10m. So the question now is what do I do? Use a hub height of 45m so that the error goes away? and what about the shear coefficient?

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taina
Power generated higher than nameplate capacity

Hi Paul,

I am making some simulations using all SAM's default values, and the wind resource from Northwestern TX - flat lands (NREL AWS Truepower representative file).

I have noticed that sometimes, the power generated by system (kW) is higher than the system nameplate capacity (kW), and I wonder if the power shouldn't be always smaller or equal than the nameplate capacity.

Many thanks!

Taina

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