Overall Rating Bronze - expired
Overall Score 43.00
Liaison Sandra Caeiro
Submission Date April 5, 2019
Executive Letter Download

STARS v2.1

Universidade Aberta
OP-5: Building Energy Consumption

Status Score Responsible Party
Complete 3.76 / 6.00
"---" indicates that no data was submitted for this field

Figures needed to determine total building energy consumption:
Performance Year Baseline Year
Grid-purchased electricity 745.61 MMBtu 853.76 MMBtu
Electricity from on-site renewables 0 MMBtu 0 MMBtu
District steam/hot water (sourced from offsite) 0 MMBtu 0 MMBtu
Energy from all other sources (e.g., natural gas, fuel oil, propane/LPG, district chilled water, coal/coke, biomass) 0 MMBtu 0 MMBtu
Total 745.61 MMBtu 853.76 MMBtu

Start and end dates of the performance year and baseline year (or 3-year periods):
Start Date End Date
Performance Year Jan. 1, 2017 Dec. 31, 2017
Baseline Year Jan. 1, 2013 Dec. 31, 2013

A brief description of when and why the building energy consumption baseline was adopted (e.g. in sustainability plans and policies or in the context of other reporting obligations):
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Gross floor area of building space:
Performance Year Baseline Year
Gross floor area of building space 7,680 Gross square meters 7,680 Gross square meters

Source-site ratio for grid-purchased electricity:
2.50

Total building energy consumption per unit of floor area:
Performance Year Baseline Year
Site energy 0.01 MMBtu per square meter 0.01 MMBtu per square meter
Source energy 0.02 MMBtu per square meter 0.03 MMBtu per square meter

Percentage reduction in total building energy consumption (source energy) per unit of floor area from baseline:
12.67

Degree days, performance year (base 65 °F / 18 °C):
Degree days (see help icon above)
Heating degree days 1,000 Degree-Days (°C)
Cooling degree days 650.50 Degree-Days (°C)

Floor area of energy intensive space, performance year:
Floor Area
Laboratory space 0 Square meters
Healthcare space 0 Square meters
Other energy intensive space

EUI-adjusted floor area, performance year:
7,680 Gross square meters

Building energy consumption (site energy) per unit of EUI-adjusted floor area per degree day, performance year:
3.04 Btu / GSM / Degree-Day (°C)

Documentation (e.g. spreadsheet or utility records) to support the performance year energy consumption figures reported above:
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency (e.g. outreach and education efforts):

The Open University conducted a workshop about good environmental work practices to all, staff and professors, in the context of the program "Programa Fixe" where some topics were focused on the energy efficiency.


A brief description of energy use standards and controls employed by the institution (e.g. building temperature standards, occupancy and vacancy sensors):
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A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:

The Open University has undertaken the replacement of all lamps in the total area of the campus by LED lighting in 2007.


A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
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A brief description of co-generation employed by the institution, e.g. combined heat and power (CHP):
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A brief description of the institution's initiatives to replace energy-consuming appliances, equipment and systems with high efficiency alternatives (e.g. building re-commissioning or retrofit programs):

The Open University has undertaken the replacement of all printers by high efficient multifunctions printers and moving to a refill toners policie instead of buying new.


The website URL where information about the programs or initiatives is available:
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Additional documentation to support the submission:
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Data source(s) and notes about the submission:

The data for the heating and cooling days was acess with the http://www.degreedays.net/
and in this tool the only station acessible was Lisbon and Oporto.


The data for the heating and cooling days was acess with the http://www.degreedays.net/
and in this tool the only station acessible was Lisbon and Oporto.

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.