Overall Rating | Gold |
---|---|
Overall Score | 65.15 |
Liaison | Emma Blandford |
Submission Date | Feb. 29, 2024 |
Georgia Institute of Technology
OP-5: Building Energy Efficiency
Status | Score | Responsible Party |
---|---|---|
3.45 / 6.00 |
Emma
Blandford Portfolio Manager Office of Sustainability |
Part 1. Site energy use per unit of floor area
Performance year energy consumption
kWh | MMBtu | |
Imported electricity | 280,989,361 Kilowatt-hours | 958,735.70 MMBtu |
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 1,096,458 Kilowatt-hours | 3,741.11 MMBtu |
Stationary fuels and thermal energy, performance year (report MMBtu):
MMBtu | |
Stationary fuels used on-site to generate electricity and/or thermal energy | 663,054 MMBtu |
Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, performance year:
Performance year building space
Floor area of energy intensive space, performance year:
Floor area | |
Laboratory space | 1,879,696 Square feet |
Healthcare space | 16,733 Square feet |
Other energy intensive space | 1,678,202 Square feet |
EUI-adjusted floor area, performance year:
Performance year heating and cooling degree days
Degree days | |
Heating degree days | 2,218 Degree-Days (°F) |
Cooling degree days | 1,989 Degree-Days (°F) |
Total degree days, performance year:
Performance period
Start date | End date | |
Performance period | June 1, 2021 | May 31, 2022 |
Metric used in scoring for Part 1
Part 2. Reduction in source energy use per unit of floor area
Baseline year energy consumption
STARS 2.2 requires electricity data in kilowatt-hours (kWh). If a baseline has already been established in a previous version of STARS and the institution wishes to continue using it, the electricity data must be re-entered in kWh. To convert existing electricity figures from MMBtu to kWh, simply multiply by 293.07107 MMBtu/kWh.
kWh | MMBtu | |
Imported electricity | 296,050,353 Kilowatt-hours | 1,010,123.80 MMBtu |
Electricity from on-site, non-combustion facilities/devices (e.g., renewable energy systems) | 0 Kilowatt-hours | 0 MMBtu |
Stationary fuels and thermal energy, baseline year (report MMBtu):
MMBtu | |
Stationary fuels used on-site to generate electricity and/or thermal energy | 566,960 MMBtu |
Imported steam, hot water, and/or chilled water | 0 MMBtu |
Total site energy consumption, baseline year:
Baseline year building space
Baseline period
Start date | End date | |
Baseline period | July 1, 2009 | June 30, 2010 |
A brief description of when and why the energy consumption baseline was adopted:
Source energy
Total energy consumption per unit of floor area:
Site energy | Source energy | |
Performance year | 0.10 MMBtu per square foot | 0.23 MMBtu per square foot |
Baseline year | 0.12 MMBtu per square foot | 0.28 MMBtu per square foot |
Metric used in scoring for Part 2
Optional Fields
A brief description of the institution's initiatives to shift individual attitudes and practices in regard to energy efficiency:
The Kendeda Building also serves as a campus “hub” for the community around sustainable practices. The building implements the most progressive sustainable practices that visually define action and attitudes to stakeholders.
The Green Fund has allowed facilities team to prioritize energy and water conservation projects. Funding in place focused on energy conservation projects support. Resiliency is a framework for GT to view sustainability long term, and resiliency projects such as electrical support systems are prioritized in implementation strategies.
A brief description of energy use standards and controls employed by the institution:
Georgia Tech is currently piloting and deploying Fault Detection and Diagnostic (FDD) tools to detect inefficient behavior. Such FDD tools are being utilized in the Kendeda building and to support a Guaranteed Energy Savings Performance contract in the ES&T and UA Whitaker buildings.
Georgia Tech provides district steam and chilled water to sectors of its main campus. Steam and chilled water system are controlled by an industrial ABB Symphony Plus system. The chilled water system was modified in FY2016 to a variable volume primary system, enhanced with the addition of variable speed drives and controlled by an Optimum Energy’s controls platform that works with the ABB system to deploy the most efficient equipment.
Georgia Tech design standards require conformance with ASHRAE 55 and 62.1. Georgia Tech has recently piloted projects for conformance with ASHRAE 189.1. In general Georgia Tech looks to require conformance with ASHRAE 90.1 editions that go beyond state mandates.
All areas except cooling processes must meet indoor temperature, humidification, and dehumidification requirements set by the “Office of Facilities Architectural and Engineering Design Standards – Georgia Tech Yellow Book”. Air conditioning, humidification, and various temperature controls are set to modern, sustainable standards according to this manual. Also, Georgia Tech’s College of Architecture has a Digital Building Laboratory that also includes Energy and Sustainability as a focus. (http://www.dbl.gatech.edu/)
All new and renovated facilities include occupancy sensing and/or time-based lighting control systems. The goal of these systems is to ensure that lighting is only active when the space is occupied. Where appropriate, daylight sensors are also deployed to disable lighting near windows when an adequate amount of light is entering from the windows.
A brief description of Light Emitting Diode (LED) lighting and other energy-efficient lighting strategies employed by the institution:
LED is now the standard in the GT Yellowbook for all outdoor fixtures, building-mounted, parking lot, parking decks, and sidewalks. Existing outdoor fixtures (high pressure sodium, fluorescent, and others) are being replaced with fixtures containing an LED source.
A brief description of passive solar heating, geothermal systems, and related strategies employed by the institution:
Georgia Tech’s campus does not have geothermal systems.
A brief description of co-generation employed by the institution:
A brief description of the institution's initiatives to replace energy-consuming appliances, equipment, and systems with high efficiency alternatives:
In 2019 Georgia Tech sought its second GESPC contract focused on (2) of its highest energy consuming laboratory buildings: ES&T and UA Whitaker. The project’s focus was on replacing aging laboratory controls and right sizing lab air exchanges to provide for laboratories that are safer, more functional and more efficient. Construction on the project completed in September of 2020 and has well exceeded the guaranteed savings to date. Airflow reductions over baseline in UA Whitaker are over 50% and in ES&T are over 70%. The project cost was $6.5M and will pay for itself, including finance and M&V expenses, over a 10 year period with a positive cash flow year over year.
Georgia Tech is in the process of developing a Fault Detection and Diagnostic program that will better enable the tracking of building performance, correction of inefficient behaviors and the implantation of energy conservation measures. This program now consists of piloting of different technologies across campus and is actively supporting the GESPC laboratory project noted above as well as the Kendeda building’s performance.
Through Georgia Tech’s Green Fund and other available sources, Georgia Tech has been able to replace aging mechanical equipment such as chillers and air handling units across campus. Focus has also included lighting retrofits in buildings, on site and in parking decks.
Website URL where information about the institution’s energy conservation and efficiency program is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
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.