Does anybody know whether chilled water and AHU's must be operating to use portfolio manager. We have a client that just does not turn on corridor 100% OA units for his building. As a result, a second chiller is literally never utilized. Cooling towers are always operating at half their capacity. The building scored a 98 on portfolio manager. Fantastic score but it seems kind of unethical to not inform USGBC that some equipment is perfectly functional but just turned off.
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Michael Smithing
Director - Green Building AdvisoryColliers International Ltd.
304 thumbs up
June 19, 2014 - 3:17 am
Turning things off is one (very good) way to increase your PM score. There's nothing unethical about not running the equipment from the energy use perspective.
Peter Keithly
PrincipalTEAM Commissioning Associates
3 thumbs up
June 20, 2014 - 11:43 am
Good question, but why would the corridor units be 100% OSA? Also, what are the CO2 levels and occupied space temperatures like? I don't think it is ethical to allow your air quality and space temperature control to deteriorate in the name of saving energy.
Michael Smithing
Director - Green Building AdvisoryColliers International Ltd.
304 thumbs up
June 20, 2014 - 11:55 am
Good point Peter - I actually thought of that. If IEQp1 is met then is it unethical to provide less than the maximum possible? The trade off between energy and occupant health and comfort is a difficult area...
Whether they should operate is one question, whether you need to tell GBCI they are not operating is another (although they should be able to see that in the BOP.)
Maria Rozatti
Sustainability ConsultantSustentech
June 24, 2014 - 4:08 pm
What is the building function? There is natural ventilation?