My design leads to an EUI that is inherently pretty low (close to 54.7 kBtu/ft²/yr):
However, it seems like my building orientation is not optimal, a 180° would be best:
For wall and roof insulation, I don't want to pick one precisely right away (because of costs too), but it seems like I could insulate them more to save more energy:
I realized I hadn't changed my operating schedule to 12/5 (which would be the one for this sustainable exhibition center):
For glazing, South windows are my main focus (currently South facades, which means the facade with the curtain wall). Obviously, it affects the cooling load, so my next step will be to add shading devices. Again, I don't want to pick one just yet for design/appearance purposes.
I thing going for double glazing low-emissivity would be a good first step, then adding shades. Not sure yet if I want to decrease the WWR because I like having these big windows
Overall, my EUI is now below the ASHRAE 90.1 EUI, so I am confident that by tweaking lighting efficiency, daylighting controls, plug load, HVAC equipment and then adding PV I could reach an EUI of 0 (or at least below Architecture 2030 target):
In fact, with 0.6W/sf of plug load efficiency, 0.3W/sf of lighting efficiency, 60% of PV coverage (I want to keep enough green roof) of 20.4% efficiency and 20-yr payback period, I finally could reach an average EUI of 9.46kBtu/sf/yr, with potential to reach 0 depending on HVAC and infiltration rate: