| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 68.39 |
| Liaison | Sam Lubow |
| Submission Date | June 29, 2012 |
| Executive Letter | Download |
Stanford University
SD-10: Energy Use by Type
| Status | Score | Responsible Party |
|---|---|---|
|
N/A |
Jiffy
Vermylen Sustainability Coordinator Sustainability & Energy Management / Office of Sustainability |
"---"
indicates that no data was submitted for this field
None
The percentage of total electricity use from coal.:
0
None
The percentage of total electricity use from wind.:
0
None
The percentage of total electricity use from biomass.:
0
None
The percentage of total electricity use from natural gas.:
98
None
The percentage of total electricity use from solar PV.:
2
None
The percentage of total electricity use from geothermal.:
0
None
The percentage of total electricity use from nuclear.:
0
None
The percentage of total electricity use from hydro.:
0
None
The percentage of total electricity use from other.:
0
None
Provide a brief description.:
Approximately 98% of Stanford's electricity comes from the on-campus cogeneration facility fueled by natural gas. Approximately 2% of Stanford's electricity comes from on-campus renewable energy, exclusively solar PV panels.
None
The percentage of total energy used for heating buildings from coal.:
0
None
The percentage of total energy used for heating buildings from biomass.:
0
None
The percentage of total energy used for heating buildings from electricity.:
0
None
The percentage of total energy used for heating buildings from natural gas.:
100
None
The percentage of total energy used for heating buildings from geothermal.:
0
None
The percentage of total energy used for heating buildings from fuel oil.:
0
None
The percentage of total energy used for heating buildings from other.:
0
None
Provide a brief description.:
The vast majority of campus building heating needs are met by steam generated from Stanford's cogeneration facility fueled by natural gas. The remainder is provided by natural-gas fired furnaces or boilers at the building level.
None
If cogeneration, please explain.:
Please see "notes" section for more information.
Data source(s) and notes about the submission:
In December 2011, Stanford’s Board of Trustees gave concept approval to the $438 million Stanford Energy System Innovation (SESI) project, which is designed to meet the university’s energy demand though 2050. SESI represents a significant transformation of the university from 100% fossil-fuel-based cogeneration to a more efficient electric heat recovery system, powered by a diverse mix of conventional and renewable electricity sources.
Due to the significant overlap between campus heating and cooling demand, SESI entails an innovative heat recovery design that is 70% more efficient than the existing Central Energy Facility (CEF) operations. In the new system, heat collected from buildings via the chilled-water loop will be captured at the CEF for reuse, reducing the use of conventional chillers to discharge waste heat via cooling towers. Instead, heat recovery chillers will move the heat collected from the chilled water loop to a new hot-water loop scheduled to replace Stanford’s aging steam distribution system.
SESI will result in immense benefits for Stanford University in the decades to come. When completed, SESI will reduce campus greenhouse gas emissions by 50%, save 18% of campus potable water, open up the energy supply platform to future technologies, enable campus to better manage its power portfolio, and yield significantly higher utilities savings though 2050.
For more information, please see the following website:
http://sustainable.stanford.edu/climate_action
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.