What is the impact of Passive and Active measures on the overall pEUI (kBtu/ft2) of a 20-story office building?

Graphic Name:

What is the impact of Passive and Active measures on the overall pEUI (kBtu/ft2) of a 20-story office building?

Submitted By:

Olivier Brouard

Firm Name:

Skidmore, Owings and Merrill LLP

Other contributors or acknowledgements (optional):

- Olivier Brouard, Sustainability Engineering Team Leader - Eric Anastas, Digital Designer - Jason Kirkpatrick, Building Performance Analyst

What tools did you use to create the graphic?

Project Information

What are the primary inputs of the analysis/analyses included in the case study?

Orientation, Window-to-wall ratio, Double Glazing, SHGC, R-Value Wall, Plug Load Density, Dayligthing Sensors, Light Power Density, HVAC system

What are the primary outputs/metrics of the analysis/analyses included in this case study?

predicted Energy Use Intensity, Cost Savings %, LEED Points

Gross Floor Area of Project Covered by Analysis

330,000 gsf

ASHRAE Climate Zone


Project Zip Code (optional)


Primary Building/Space Type Covered by Analysis
  • Office
If you selected 'Mixed Use' on the previous question, what are the different uses?


List the investigations questions that drove your analysis process.

To understand the magnitude impact of design decisions very quickly and simultaneously.An interactive engaging exploration tool reading pre-run simulations. Leverages high multidimensional results of large-scale dataset.

Who performed the simulation analysis? (select all that apply)
  • Architect - Internal Sustainability Personnel
What tools were used for the simulation analysis? (select all that apply)
  • EnergyPlus
What phase of the project was analysis conducted? (select all that apply)
  • Conceptual Design
How was simulation integrated into the overall design process?

The simulation was integrated at concept design to allows designers to simultaneously see the impact of design solution on multiple performance criteria. This tool was used as a way to run a live energy model and influence the design process directly before decisions were made. Customizable and optimized for storytelling. Provides real-time feedback to Design Team to highlight major findings.

How did you set up the simulation analysis and workflow?

- Used D3 - a JavaScript library for producing dynamic, interactive data visualizations in web browsers. - Download d3.parcoords (parallel coordinates) open source code - Modify & add Functionalities to the code - Ran a shoebox energy model using jEplus and Open Studio - Created an excel spreadsheet csv file with inputs and outputs - Link the database csv file to the D3 HTML code - Designed and Formatted with the firm Standard - Visualized the tool running a Javascript Node Server locally or on an intranet server

How did you visualize the results to the design team? What was successful about the graphics that you used to communicate the data?

The graph highlights all the possible permutations computed for the variable studied. The baseline is based on the ASHRAE 90.1 2007 standard [Appendix G] orienting the building at a true North angle of 45°. The results were shown in a HTML page directly to the design team. The architects used the selectors to filter through the parameters and figured quickly the path to get to their goal.

Most importantly, what did you learn from the investigation? How did simulation and its outputs influence the design of the project?

I wished I could have added the upfront cost of the design variables to weight in the return on investment and payback period.

Is there anything else you'd like to mention? This can be in terms of your case study, this form, or suggestions for improving the submission process in general?

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