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Bi-facial solar

  • 8 Feb 2024 2:06 PM
    Message # 13312640

    Any word on how to model bi-facial panels in H2K? 


    BTW... We need a better Forum platform that is easier to search through old topics I think....

    Thanks,

    Jeffrey

  • 9 Feb 2024 8:33 AM
    Reply # 13312964 on 13312640

    That's a tricky one.  Good one for CACEA to bring forward to NRCan.  In the meantime Hot2000 does not have a direct entry or work around that I am aware of.  EAs should work with their SOs as well to discuss.  It may be a matter of changing array sizes to fit the actual outputs.

  • 20 Feb 2024 4:48 PM
    Reply # 13318347 on 13312640
    Anonymous
    Would it not be "very close" to model the backside as an additional system with the overall system efficiency used as the installation specs provided by the contractor? (i.e. shading, albedo, etc boiled down to eff.). The bifacial capable modelling software should be able to spit this out.
  • 21 Feb 2024 2:36 PM
    Reply # 13318928 on 13312640
    Personal opinion I would say yes but for EnerGuide it is up to NRCan/SO to clarify the procedure or you need to be prepared to backup the steps/thinking in regards to the outcome.  Something CACEA may be able to help with.
  • 26 Feb 2024 12:43 PM
    Reply # 13320977 on 13312640

    The technical documents show only 5-25% gains (attached example)  but they are just now learning that Vertical mounting in E-W orientation is even more efficient.  We give incentives in NB based on kW... so we are taking the max  e.g. a 460w panel at 125% is 575w.  but how that goes into Hot2000 is much more difficult... it's not going to recognize E-W in vertical mounts. 

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