First, here is my baseline outcome:
- Use Insight to Explore the Impact of Building Envelope-Related Design Decisions
First, I experimented with wall construction. I tested my current material setting in Revit for my project (CMU)… this only provided marginal improvements. I am noting this for the next module. I then shifted to the best wall construction outcome, which was R38 Wood. There were minimal changes in differing orientation outcomes, but I selected 135 since it offered the largest relative reduction.
For WWR, I went with 65% for southern and 0% for norther/eastern/western for minimal EUI.
For glazing, south windows had a high potential for reduction with -1.88 with Trpl LoE coating.
For shading, 1/4 win south makes the biggest relative difference. With these changes I was able to get a best-case EUI of 53.3.
- Use Insight to Explore the Potential Impact of Power and Lighting Measures (versus Building Envelope Measures)
- Use Insight to Explore the Benefits of Adding Photovoltaic Panels to Your Design
With power and lighting measures, I reduced the plug load efficiency to .6 W/sf, lighting efficiency to .3 W/sf, and daylighting/occupancy controls (although this had the same impact as occupancy controls alone). This resulted in an 8.3 EUI difference, further decreasing energy demand.
- Surface Coverage - 90%
- Panel Efficiency - 20.4%
- Payback Limit - 20-30yr
In changing these settings, I was able to further drive down EUI to 5.81. This was by far the most dramatic decrease.
