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
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