Global Ecology Center at Stanford University
Summary
The Global Ecology Center (GEC) at Stanford University is an 11,000-square-foot laboratory building designed using RMI's '10xE' whole-system thinking. By challenging conventional design assumptions and employing an interdisciplinary process, the project achieved a 72 percent reduction in electricity for HVAC and lighting compared to a 2001 California Title 24-compliant building. Key innovations include a night-sky cooling system that uses roof sprays to chill water, radiant floor cooling, and a 'cascading' ventilation system that reduces outside air needs by 20 percent. The building also reduced its concrete carbon footprint by 31 percent through the use of high-volume fly-ash concrete and decreased water usage by 33 percent. Despite challenges with standard energy-modeling software and some valve leaks, the GEC demonstrated that high efficiency can be achieved with a modest capital cost premium, resulting in operating costs approximately 56 percent lower than a comparable existing building.
Key insights
- The Global Ecology Center achieved a 72 percent reduction in electricity use for HVAC and lighting compared to a building compliant with the 2001 California Title 24 energy code, with a capital cost premium that was paid back within two to five years.
- The building's total operating costs are approximately 56 percent lower than those of a comparable existing building, and its verified energy use intensity was 141 kBtu/ft2-y (445 kWh/m2-y).
- A night-sky cooling system sprays water over the roof at night to cool it via evaporation and radiation, distributing water at 55–60 °F using only 0.07 kW per ton of cooling for pump power, compared to nearly 1.0 kW per ton for a standard chiller.
- Laboratory energy use was reduced by separating lab and office ventilation, using larger 24-inch low-pressure-drop ducts to reduce fan power, and implementing a 'cascading' airflow system that reduces the need for outside air by 20 percent.
- Strategic decisions to reduce floor space and cooling loads included moving laboratory freezers to a nearby unconditioned warehouse, which reduced the GEC's annual energy use by 15 percent.
- The project reduced its embodied emissions by 31 percent, dropping from 302 to 209 metric tons, primarily by using salvaged materials and high-volume fly-ash (HVFA) concrete, which replaced 50 percent of the cement.
- Water consumption was reduced by 33 percent through the use of low-flow faucets, dual-flush toilets, and non-irrigated landscaping.
Cite the original document
- APA
- Bendewald, M., Harrison, J., & Pradhan, A. (2011). Global Ecology Center at Stanford University. RMI. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2011-08_10xEGlobalEcologyCenter.pdf
- Chicago
- Bendewald, Michael, Jennilee Harrison, and Alok Pradhan. Global Ecology Center at Stanford University. RMI, 2011. https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2011-08_10xEGlobalEcologyCenter.pdf.
- Wikipedia
- {{cite report |last1=Bendewald |first1=Michael |last2=Harrison |first2=Jennilee |last3=Pradhan |first3=Alok |title=Global Ecology Center at Stanford University |publisher=RMI |date=February 2011 |url=https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2011-08_10xEGlobalEcologyCenter.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{bendewald2011global, author = {Bendewald, Michael and Harrison, Jennilee and Pradhan, Alok}, title = {{Global Ecology Center at Stanford University}}, institution = {RMI}, year = {2011}, month = feb, url = {https://rmi.org/app/uploads/2017/05/RMI_Document_Repository_Public-Reprts_2011-08_10xEGlobalEcologyCenter.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }
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