[TRNSYS-users] PV array efficiency

[David BRADLEY]

Farah,

  I see that you also copied your message to our techsupport hotline; 
could you please also send the project files over there?

  Sometimes in the very early morning or very late afternoon the 
definition for the efficiency makes two very small numbers divided by 
each other result in an unrealistically high value. With efficiencies, 
it is often best to look at averages (daily or longer) rather than at 
instantaneous values. That said, I'd still like to verify that there is 
not a problem in the model.

kind regards,

  David



On 10/18/2021 04:16, Farah Souayfane via TRNSYS-users wrote:
> Good afternoon,
>
> I am using type 103 to model a PV panel,
> However the efficiency of the array is not an input,  but could be 
> found in the outputs. I am getting efficiency values up to 60. What 
> does it mean ? knowing that the efficiency of PV panels is between 15 
> and 20 % ( from the literature).
>
> Thank you and best regards,
> Farah
>
>
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David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI  53703 USA

P:+1.608.274.2577
d.bradley at tess-inc.com

http://www.tess-inc.com
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