Wind velocity

[azein]

Hi,

I have measured wind speeds that I'm trying to use in the meteo file.

Step 1. I go to databases, geographical sites, create a new site, paste the globHorizontal, temperature, and wind velocities.

Step 2. I go to synthetic generation and execute the generation.

Step 3. I go to Meteo tables and graphs and there press modify site, go to meteo, and here the wind velocities are values that I did not insert, with an average of 3m/s whatever I put in wind velocities in step 1. I tried actual simulations, and the result stays the same whatever the wind velocities input in step 1.

Please help, I'm using v 6.11

[azein]

André? No clue?

[André Mermoud]

I have corrected this problem in the latest version 6.12.

However PVsyst cannot generate hourly wind velocities: I don't know any model for performing such a generation.

Therefore the hourly values will be the monthly average in the hourly data file.

[azein]

Thank you,

[maia]

Hi Andre,

I am having the same problem in v6.25. Any idea?

Regards.

[vishal]

In the equation U=Uc+Uv *V if I Change the Uv value of the constant how it will affect the output module temperature and power?

Please define the formula for the constant Uv.

[André Mermoud]

The formula is mentioned in the Help "Project design > Array and system Losses > Array thermal losses".