Overall Rating Gold - expired
Overall Score 65.52
Liaison Gina Talt
Submission Date Feb. 28, 2018
Executive Letter Download

STARS v2.1

Princeton University
OP-6: Clean and Renewable Energy

Status Score Responsible Party
Complete 0.00 / 4.00 Thomas Nyquist
Executive Director
Engineering and Campus Energy
"---" indicates that no data was submitted for this field

Total energy consumption (all sources, excluding transportation fuels), performance year :
1,533,645 MMBtu

Total clean and renewable electricity generated on site during the performance year and for which the institution retains or has retired the associated environmental attributes:
0 MMBtu

A brief description of on-site renewable electricity generating devices :

Princeton owns a 4.5 megawatt AC solar photovoltaic system. The system is comprised of 16,528 panels and nine 500kW inverters. Although the system provides approximately 5.5% of the annual electricity to campus, Princeton is selling all SRECs associated with our solar photovoltaic system until at least 2020.
Additionally, Princeton owns a system of solar panels that sit on top of Frick Chemistry Laboratory. The system's designed capacity is between 70-75 kilowatts, and the system produces on average the equivalent of 2% of the building's power demand and represents less than 1% of total campus energy use. However, the building’s energy demand would likely be higher without the shade provided by the rooftop array during the summer months.


Non-electric renewable energy generated on-site, performance year:
0 MMBtu

A brief description of on-site renewable non-electric energy devices:
---

Total clean and renewable electricity generated by off-site projects that the institution catalyzed and for which the institution retains or has retired the associated environmental attributes, performance year:
0 MMBtu

A brief description of off-site, institution-catalyzed, renewable electricity generating devices:
---

Total third-party certified RECs, GOs and/or similar renewable energy products (including renewable electricity purchased through a utility-provided certified green power option) purchased during the performance year:
0 MMBtu

A brief description of the RECs, GOs and/or similar renewable energy products, including contract timeframes:
---

The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
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Electricity use, by source (percentage of total, 0-100):
Percentage of total electricity use (0-100)
Biomass ---
Coal ---
Geothermal ---
Hydro ---
Natural gas ---
Nuclear ---
Solar photovoltaic ---
Wind ---
Other (please specify and explain below) ---

A brief description of other sources of electricity not specified above:
---

Energy used for heating buildings, by source::
Percentage of total energy used to heat buildings (0-100)
Biomass ---
Coal ---
Electricity ---
Fuel oil ---
Geothermal ---
Natural gas ---
Other (please specify and explain below) ---

A brief description of other sources of building heating not specified above:

.


Percentage of total energy consumption from clean and renewable sources:
0

Access the following link for information on the energy sources from which grid-purchased electricity is derived. https://www.pseg.com/info/environment/envirolabel.jsp

Note that this doesn’t account for the energy sources used in the University’s cogeneration facility (either electricity, chilled water, or steam) which is mostly natural gas, but also includes a small percentage of #2 diesel. Based on the data reported in OP5 for FY 2017, energy derived from the cogeneration plant represents around 80% of total energy consumption, while grid-purchased electricity only represents around 20%.

Information about the solar array: https://facilities.princeton.edu/sustainable-campus/sustainable-energy

Note that the response to question #1 (total energy consumption) excludes 26,228 MM Btu of electricity generated by the University’s Solar PV system since the University sells the resulting SRECs and cannot count the output as non-emissions power. Since the SRECs are sold, and not retired or retained, the answer to question #2 (total onsite clean and renewable energy) is thus 0.

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.