LEED Opportunities with District EnergyA Roadmap for sustainable buildings with District Cooling

Organised by

Rakesh Rajendran ShyamalaSr.Mechanical Engineer, LEED AP (BD+C)

Saudi Tabreed District Cooling Company

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Agenda

What is LEED? Green BuildingsAverage Savings of

Green Buildings

LEED Certification Levels & Credentials

Credit CategoriesProfessional

Accreditation (vs) Building Certification

Certifications in Saudi Arabia

Energy and Cost Saving with DC

Outsourcing

Treatment of District Cooling in LEED:

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What is LEED?

LEED (Leadership in Energy and Environmental Design) is the most widely used green building rating system in the world.

Significance of Green Buildings: Major Environmental challenges today are,

• Climate Change

• Depletion of Resources

• Ozone Depletion

• Air Pollution

• Water Pollution

• Land Pollution

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Why Green Buildings ?

Buildings can have both positive and negative impacts on their surroundings as well as the people who inhabit them everyday.

LEED can help both new and existing buildings to implement sustainable and greener strategies to become high performing buildings.

Energy Efficient Water Efficient Better Indoors Use Sustainable Materials Reduced Transportation

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25%35%

40%

50%

Average Savings of Green Buildings

ENERGY

SOLID WASTE

WATER

CARBON

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LEED Timeline

1993

Formation of USGBC in 1993

1998

LEED v1.0

2001

LEED v2.0 and Green build

2003

LEED v2.1 In April 2004, LEED reached 100 certified projects.

2009

USGBC launched LEED v2009

2015

LEED v4 came in 2015 with a lot of new improvements

2019

LEED v4.1 and a new Living Standard

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BD+C ID+C O+M ND HOMES

Building Design

and Construction

Interior Design and

Construction

Building Operations

and Maintenance

Neighborhood

DevelopmentHomes

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▪ A LEED credential denotes proficiency in today’s sustainable design, construction and operations standards.

▪ Around 200,000 professionals have earned a LEED credential to help advance their careers.

LEED professional credentials

Each specialty arms you with advanced knowledge in green building and helps you stand out as an expert in a particular LEED rating system.

Denotes basic knowledge of green

design, construction, and operations

Highly accomplished class of individuals

nominated by their peers with

exceptional green building experience

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LEED Credit Categories

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LEED Certifications in Saudi Arabia

Source-www.gbig.org

KAPSARC

KAUST

Energy and Cost Saving with DC OutsourcingEnergy and Cost Savings with DC outsourcing

240 MW

Conventional Cooling

(140,000 TR)

523,000 225,000 metric

tons838 MM Kwh

90 MW

District Cooling with TES

(100,000 TR1)

197,000 85,000 metric

tons315 MM Kwh

150 MW 326,000 barrels 140,000 tons

of oil, which

100,000 TR 523 MM KwH

in electricity consumption, of CO2 from the

environment,

Saves Savings EliminatesEvery Lower

of District Cooling Capacity

(with Thermal Energy Storage),

of power plant infrastructure,

and

16,000

Enough to power up

SAR 500 MM

capital investment

in power sector

Reduces

in KSA every year

22,000

Enough to fuel

per year

6,500,000

Equivalent to

Carbon absorbed2,500,000 m3

of TSE water every

year

Utilizes

1Due to Diversity Factor, District Cooling Plant with 100,000 TR of Plant Capacity is able to provide 140,000 TR of cooling services

by

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Key Benefits of DC Systems

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LEED & District Energy

❖Supports Fundamental & Enhanced Refrigerant Management( Zero use of CFCs)

❖Supports EA Prerequisite Fundamental Commissioning: Buildings no longer to commission chillers.

❖Supports the Prerequisite: Minimum Energy Performance

❖Possible to gain most of the 18 points under EA Credit Optimize Energy Performance

❖Additional credits can be gained if onsite renewable energy or Green Power is used along with District Energy

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Baseline(vs) Design Case Building:

The design of the building

pursuing LEED

Certification.

Identical except designed

to meet minimum

ASHRAE 90.1 guidelines.

Baseline CaseDesign Case

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Importance of E& A Credit :Optimize Energy Performance Credit

To allow projects served by district energy to document additional performance improvement when using EA Prerequisite

Minimum Energy Performance and EA Credit Optimize Energy Performance, Option 1 Whole Building Simulation.

LEED Certified is the lowest level that can be achieved under LEED. LEED Silver is earned with 50 points; LEED

Gold is earned with 60 points; LEED Platinum is earned with 80 points.

Achieving all of the available Optimize Energy Performance credits would represent 45 percent of the points needed

to earn the “LEED Certified” level.

LEED

Version

Total # of Pts.

Available

Total # of Pts.

Needed to Earn

LEED Certified*

Total # of Pts.

OEP*

LEED v4 110 40 ~18 (16 for Schools;

20 for Healthcare)

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OEP Points:

Treatment of District Cooling in LEED:

• The buildings served by the DES can receive the cooling services at lower capital and energy costs than if they produced

thermal energy on site.

• When a DES includes combined heat and power (CHP), the efficiency of CHP can further reduce energy costs and emissions

for buildings served by the DE.

• U.S. Green Building Council’s (USGBC’s) LEED® v4 Reference Guide,1 new buildings seeking LEED® certification must meet

a “Minimum Energy Performance” prerequisite.

• In addition, under the “Energy and Atmosphere: Optimize Energy Performance” (OEP) credit, buildings can earn points for

superior energy performance beyond the requirement of the prerequisite.

• The scale of district energy systems provides opportunities to generate and deliver energy to buildings in a sustainable manner.

• Taking advantage of these opportunities can improve the ability of a district energy system’s customers to reach LEED

certification or achieve a higher level of certification for their building

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Saudi TabreedLEADING DISTRICT COOLING PROVIDER IN THE REGION

ICONIC PROJECTS

373,000

TR

District Cooling

Services provided in

KSA

1st

Company to finance

DC on non-recourse

in Middle east

KEY HIGHLIGHTS

King Abdullah

Financial District

(100,000 TR)

King Khaled

International

Airport

(35,000 TR)

Saudi Aramco,

Dhahran

(32,000 TR)

Jabal Omar,

Makkah

(55,000 TR)

1,400,000

TR

Total number of District Cooling Plants in

the GCC

Ra'idah

Digital City

(35,000 TR)

72

plants

District Cooling Services provided in GCC

*Abu Dhabi, Dubai, Bahrain, Oman and

KSA

QIPP

(92,000 TR)

Saudi Tabreed has been working in close collaboration with government entities to streamline the cooling demand requirements, facilitated by the development of mega-projects in an efficient manner.Also under innovative frameworks of BOO/BOT's as well as EPC-O's for government centres, and mixed-use developments.

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KEY GCC PROJECTS

✓ Dubai Metro

✓ Reem Island – Abu Dhabi

✓ Sheikh Zayed Mosque ✓ Ferrari World – Abu Dhabi

✓ AL DAR H.Q – Abu Dhabi ✓ Etihad Towers – Abu Dhabi ✓ Cleveland Clinic – Abu Dhabi

✓ Bahrain Trade Center✓ Bahrain Financial Harbor ✓ Reef Island - Bahrain ✓ Knowledge Oasis – Oman

✓ Sheikh Zayed Road -Dubai

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Rakesh .R .SSr. Mechanical Engineer, LEED AP (BD+C)

Department of Engineering & Project Management

Thank You

Thank You for attending this presentation

Don’t forget to collect your CPD certificate at the event from CPD

collection area

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