Overall Rating Gold
Overall Score 65.42
Liaison Ellen Vaughan
Submission Date March 3, 2017
Executive Letter Download

STARS v2.1

Northern Arizona University
OP-6: Clean and Renewable Energy

Status Score Responsible Party
Complete 0.41 / 4.00 Ellen Vaughan
Manager
Office of Sustainability
"---" indicates that no data was submitted for this field

Total energy consumption (all sources, excluding transportation fuels), performance year :
605169.97 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:
941 MMBtu

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

We have:
2 Installations of solar hot air heaters
3 Solar PV installations
2 Solar hot water installations
4 wind turbines


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

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

ARD's building solar thermal pre-heats water for kitchen and bathroom sinks.

At the Health and Learning Building 35 percent of the domestic hot water is provided by 51 solar thermal panels on the building's roof. This renewable energy source exceeds three percent of the total building energy usage.

We have two innovative solar hot air heating systems and a solar wall system: http://nau.edu/Green-NAU/Renewable/


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:
60777.98 MMBtu

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

2015: 15%, unbundled RECs starting in Nov. of 2015
Prior to 2015: NAU buys 10% from APS's Green Energy Program.


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 0.70
Coal 25
Geothermal 0.30
Hydro ---
Natural gas 26
Nuclear 26
Solar photovoltaic 7
Wind 3
Other (please specify and explain below) 12

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

Our utility lists energy efficiency as 12%


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 100
Other (please specify and explain below) ---

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

NAU's primary heating is through centralized steam and high temperature hot water systems.

We have two innovative solar hot air heating systems and a solar wall system: http://nau.edu/Green-NAU/Renewable/

There are surely a few small space heaters in offices across campus that are not counted or metered.


Percentage of total energy consumption from clean and renewable sources:
10.20

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.