Overall Rating Silver
Overall Score 60.91
Liaison Sarah Fortner
Submission Date March 5, 2021

STARS v2.2

Carleton College
OP-6: Clean and Renewable Energy

Status Score Responsible Party
Complete 0.92 / 4.00 Martha Larson
Manager of Campus Energy and Sustainbility
Facilities
"---" indicates that no data was submitted for this field

Total energy consumption, performance year:
129,122.35 MMBtu

Clean and renewable electricity (report kilowatt-hours):
kWh MMBtu
Imported electricity from certified/verified clean and renewable sources (i.e., bundled green power purchases) 0 Kilowatt-hours 0 MMBtu
Electricity from on-site, clean and renewable sources (rights retained/retired) 4,201,016 Kilowatt-hours 14,333.87 MMBtu

A brief description of the certified/verified sources of clean and renewable electricity:
---

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

Carleton's second wind turbine, a General Electric XLE 1.6 MW turbine, was installed in the Fall of 2011 and provides electricity directly to Carleton's electric grid. Carleton also has a 9 kW solar PV array which produces an annual average of 10 MWh per year.


Clean and renewable thermal energy (report MMBtu):
MMBtu
Clean and renewable stationary fuels used on-site to generate thermal energy 0 MMBtu
Imported steam, hot water, and/or chilled water from certified/verified clean and renewable sources 0 MMBtu

A brief description of the clean and renewable stationary fuels:

Carleton has a solar panel array on its Cassat-James residence Hall which provides solar thermal heating for domestic hot water. We do not currently have the ability to measure cumulative btu production.


A brief description of the certified/verified sources of clean and renewable thermal energy:
---

Unbundled renewable energy products (report kWh):
kWh MMBtu
Purchased RECs, GOs, I-RECs or equivalent unbundled renewable energy products certified by a third party 4,500,000 Kilowatt-hours 15,354 MMBtu

A brief description of the unbundled renewable energy products:

Carleton recently started purchasing RECs through our utility provider, through their Renewable Connect Program. We purchase RECs in an amount of the power we deliver to the grid from our first wind turbine.


Total clean and renewable energy generated or purchased:
29,687.87 MMBtu

Percentage of total energy consumption from clean and renewable sources:
22.99

Website URL where information about the institution’s support for clean and renewable energy is available:
Electricity use, by source (percentage of total, 0-100):
Percentage of total electricity use (0-100)
Biomass 0
Coal 17
Geothermal 0
Hydro 0
Natural gas 17
Nuclear 21
Solar photovoltaic 2
Wind 36
Other (please specify and explain below) 6

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

Carleton purchases most of its electricity from the public utility (Xcel Energy). The power generation information on their website does not include any detail on what is in included in "other renewables"

https://mn.my.xcelenergy.com/s/energy-portfolio/power-generation


Energy used for heating buildings, by source::
Percentage of total energy used to heat buildings (0-100)
Biomass ---
Coal ---
Electricity ---
Fuel oil 4
Geothermal ---
Natural gas 96
Other (please specify and explain below) ---

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

Additional documentation to support the submission:
Data source(s) and notes about the submission:

The performance year is considered to be fiscal year 2020.


The performance year is considered to be fiscal year 2020.

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.