FY2016

Annual Energy Report

Fiscal Year 2016

In 2016, Emory adopted a new Sustainability Vision and Strategic Plan that includes a

commitment to reduce energy use, per square foot, by 50 percent in 10 years and overall by

25%. Last year we met our previous target reduction of 25% and have been working on the

interim reduction of 37.5% by 2020. We have also committed to self-generate 10% of our

campus electric use, and currently have installed and under construction over 1.25MW made

up of solar and co-generation with a steam turbine. Continuation of these types of

generation and conservation projects will now be assisted by a newly created Green Revolving

Loan Fund seeded by a generous gift from the Kendeda Fund.

The 2025 overall reduction goal of 25% challenges Emory to reduce

energy consumption while also meeting its current building expansion plans. The new

Campus Life Center will be Emory’s most aggressive high performance building to date, with a

target Energy Use Intensity (EUI) significantly lower than the campus average as well as across

the country. In addition to energy reductions, Emory also targets to reduce drinking water

consumption 50% by 2025, and has made great progress through the first complete

operating year of its WaterHub.

-40.0%

-35.0%

-30.0%

-25.0%

-20.0%

-15.0%

-10.0%

-5.0%

0.0%

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Pe

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kBTU

/SF)

Emory University

Emory University 2015 Goal 25% 2020 Goal 37.5%

Some of the major contributors targeted for achieving the 2025 goals:

New construction/major renovations will have targeted EUIs 25% lower than campus

average or current conditions.

Eliminate drinking water use for heating, cooling, toilet flushing and other non-potable uses

Create and leverage incentives for all operating units to conserve including the use of a

sustainability revolving loan fund.

Invest in the Office of Sustainability to achieve successful implementation of the University

goals.

Continue to enforce a temperature policy to set thermostats at 68 degrees and 76 degrees

based on the season and achievable energy conservation.

Expand the Re-Commissioning and Sustainable Performance Program (SPP) which aims to

maintain optimal performance of a building’s mechanical systems.

The 2025 Goals:

Reduce Total Energy Consumption 25% over a 2015

baseline.

Reduce EUI (energy/sqft) 50% over a 2015 baseline.

Reduce Drinking water Consumption 50% over a 2015

baseline.

-50.0%

-40.0%

-30.0%

-20.0%

-10.0%

0.0%

10.0%

20.0%

2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

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/Sq

Ft)

Individual Results by Groups

Emory University Emory Campus Clairmont Campus

Oxford Campus Yerkes Conference Center

Briarcliff Campus 2015 Goal 25% 2020 Goal 35.7%

Efficient Design and Renovation New design and construction standards with a

minimum LEED silver requirement has

produced buildings that are significantly more

energy efficient and have been a large

contributor to the energy reduction goals to

date. Going forward, targeted EUIs over 25%

below the campus average will continue to

require efficient design for new construction

and renovations.

Utility Reduction & Energy

Conservation Agreement URECA projects have been implemented at

12 buildings this past year and included:

Lighting and fixture upgrades

Lighting Controls

Step dimming fixtures

To date, 36 Buildings have implemented

URECA projects.

Recommissioning and Sustainable

Performance Program (SPP) Recommissioning is an ongoing strategic process, which

optimizes existing building systems by identifying controls,

schedules, faulty equipment or installations and setting the

building back on course for energy efficiency. The SPP is an on-

going commissioning program that strives to keep the building

HVAC systems optimized and prevent performance

degradation and the need for future re-commissioning.

Combined SPP and

URECA buildings

operating cost

savings to date is

$12.3 million.

Electricity Georgia Power provides almost 270 million kilowatt hours of electricity annually to the central campus facilities. The peak summer electric demand is about 45 megawatts. Electric power is fed by Georgia Power directly to some buildings and through a substation and private Emory distribution system to the rest of the buildings. Electricity consumption is metered either by Georgia Power or Emory meters at every building.

Solar Energy at Emory Two, large scale rooftop, solar projects were installed in FY15, a 183kW array at 1762 Clifton Road, and a 72kW array at the North Decatur building. These were part of Georgia Power’s Advanced Solar Initiative and Emory retains the carbon reduction credits from the solar electric generation. A smaller installation was built for the new WaterHub. These installations generated 358,000 kWh during FY16. Projects slated for the future include expansion at 1762 Clifton Rd. and an array at the new Library Service Center, located on the Briarcliff Campus.

Energy – Around the Campus

Chilled Water Plants Three chilled water plants provide cold water for space cooling to 50 buildings through underground distribution systems. The plants provide annually about 50,700,000 ton-hours of cooling by supplying 42F water used to cool and dehumidify air entering and circulating in the buildings. The plants have a combined capacity to supply 25,000 tons of cooling. Chilled water consumption is metered at each building for all of the buildings on the distribution system.

Great effort has gone into optimizing the operation and sequencing of the chillers. Software logic changes to the central chilled water plants have

improved efficiency over 24%.

Chilled Water Production

40 Million Ton-Hours/year

Steam Production

Emory operates five 100,000lb/hr. steam boilers that consume natural gas and fuel oil when the natural gas supply is interrupted. The boiler plant annually consumes about 756 million cubic feet of natural gas to produce about 684 million lbs. of steam. The steam is distributed underground to 59 buildings on the central campus for space heating, water heating, humidification, and process loads. Steam consumption is metered at every building. A new boiler is being installed, replacing a 45 year old inefficient unit (see cover photo of aerial lift.)

Steam Turbine Generator Emory is installing a steam turbine

generator along with the new boiler that

will use higher pressure steam to generate

approximately 1MW of power. This

generation of electricity will help the

university reduce its purchased electricity,

and will provide back-up power in the case

off-site power is lost.

Natural Gas

Atlanta Gas Light annually delivers approximately 793 million cubic

feet of natural gas, purchased through marketers, to the central

steam plant as well as directly to some facilities.

Reclaimed Water The Campus’ first water reuse system for toilet flushing was installed

at Few and Evans Residence Hall, and consists of a large storm water

capture cistern that uses solar power pumps to circulate the water

to the buildings for toilet flushing. The second system is a grey

water system at Longstreet-Means Residence Halls that collects

shower and sink water and reprocesses it for a supply of toilet

water.

Emory’s most recent reclaimed water system is called “WaterHub”

and is an on-site water reclamation system which utilizes eco-

engineering processes to clean waste water primarily for utility

water make-up. It is the first system of its kind to be installed in the

United States. Emory’s WaterHub is capable of recycling up to

400,000 gallons per day –nearly 40% of Emory’s total campus water

needs.

Wastewater cleaned by the WaterHub is used as process make-up

water in Emory’s steam and chiller plants and for future toilet

flushing in select residence halls.

Prize; US Water Alliance

WaterHub 2016 Awards:

Effective & Innovative Practices; APPA

National Engineering Excellence Award; American Council of

Engineering Companies

Outstanding Achievement Game Changer Award; Atlanta

Better Buildings Challenge

Project Excellence Award; Water Environment Federation

Innovation Award; NACUBO

Fulcrum Award; Southface

For more information, contact: Emory University Energy Manager