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The Sustainability Tracking, Assessment & Rating System™ (STARS) is a transparent, self-reporting framework for colleges and universities to measure their sustainability performance.

Overall Rating Gold
Overall Score 68.01
Liaison Andrew Predmore
Submission Date March 2, 2017
Executive Letter Download

STARS v2.1

Indiana University Bloomington
OP-6: Clean and Renewable Energy

Status Score Responsible Party
Complete 0.09 / 4.00 Ian Yarbrough
Meter Data Anlyst
Utilities Information Group
"---" indicates that no data was submitted for this field

Total energy consumption (all sources, excluding transportation fuels), performance year :
916,472.26 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:
5,121 MMBtu

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

IUB has solar photovoltaic systems installed and on the grid on top of four buildings. The Indiana Memorial Union system is rated at 1.88 kW; the Briscoe Quadrangle system is rated at 20.68 kW; the Tulip Tree residence hall system is rated at 5.38 kW; the E-House system is rated at 4 kW; and the newest system on the IU Art Museum is rated at 4 kW.

IUB has a microturbine inside the Central Heating Plant that works in parallel with the pressure reducing station valves. This turbine reduces the pressure of steam from 150 psi to 40 psi and produces electricity in that process. The microturbine is rated at 250 kW.

The Central Heating Plant also has a demonstration unit which produce both solar hot water and PV.

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

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

This figure includes thermal production of the Central Heating Plant microturbine. The Research and Teaching Preserve, Cyberinfrastructure Building (CIB), and Rose Residence Hall all utilize solar hot water but the current monitoring system does not allow us to list that production. A large solar hot water system at Spruce Hall is currently being monitored and we look forward to presenting those figures at our next STARS submission.

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:
15,181.34 MMBtu

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

Indiana University Bloomington purchases renewable energy credits from Sterling Planet Inc. The REC type consists of 50% wind and 50% small hydro, where generators are located nationwide. The majority of the energy is sent to seven buildings on campus that are moving towards a LEED silver status, and the remaining is used to offset additional LEED buildings, events, and other activities on campus. Although the amount purchased is concrete, when the University will use part or the entirety of the REC energy is up to their discretion. It is currently planned out over the next four years, but subject to change. The University may also decide to purchase more REC's within this time.

The website URL where information about the programs or initiatives is available:

Additional documentation to support the submission:

Electricity use, by source (percentage of total, 0-100):
Percentage of total electricity use (0-100)
Biomass ---
Coal 59.60
Geothermal ---
Hydro ---
Natural gas 27.70
Nuclear ---
Solar photovoltaic ---
Wind ---
Other (please specify and explain below) 10

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

Synthetic gas - 8.7%
Oil - 2.7%
Small amount of hydro, wind, and solar, at 1.3% Total.

Energy used for heating buildings, by source::
Percentage of total energy used to heat buildings (0-100)
Biomass 0
Coal 13.70
Electricity 28.72
Fuel oil 0.16
Geothermal 0
Natural gas 57.34
Other (please specify and explain below) 0

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

Percentage of total energy consumption from clean and renewable sources:

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 and complete the Data Inquiry Form.