Sustainable Maintenance Best Practice: Energy Efficiency in the Carbon Free World. Michel Abi Saab. Team Leader, Energy Efficiency LEED AP, CEM, CMVP

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1 Sustainable Maintenance Best Practice: Energy Efficiency in the Carbon Free World Michel Abi Saab Team Leader, Energy Efficiency LEED AP, CEM, CMVP Masdar Insert Date3rd Here September 2015

operations and maintenance practices (ASHRAE 2009).

2 ABSTRACT A building with good operations and maintenance practices that is poorly designed will often out perform a well designed building with poor operations and maintenance practices (ASHRAE 2009). Turner and Frankel, Energy performance of LEED buildings 25% of LEED buildings perform below national average.

MASDAR CITY Masdar City seeks to create a commercially viable, sustainable city providing a good quality of life with the lowest possible environmental footprint.

3 MASDAR CITY Masdar City seeks to create a commercially viable, sustainable city providing a good quality of life with the lowest possible environmental footprint. Masdar has established measurable goals in the area of carbon footprints, energy usage, water usage, waste generation, social impact and economic viability. These goals represent the three pillars of sustainability: Social Environmental Economic

4 ABU DHABI AND MASDAR CITY Abu Dhabi Masdar City

5 MASTER PLAN Credit: Foster + Partners

6 COOLING FROM SHADE

7 COOLING FROM WATER

8 COOLING FROM WIND

9 OUTDOOR THERMAL COMFORT Typical Abu Dhabi Credit: Foster + Partners Masdar City

10 ENVIRONMENTAL GOALS No. Design Criteria Minimum Requirement 1 Reduction Energy Consumption 40% 2 Renewable Energy Provision 75% of hot water by solar energy 3 Reduction Interior Water Use 40% 4 Exterior Water Use For Landscaping 5 Construction Waste Diversion From Landfill 70% 6 Operation Waste Diversion From Landfill 50% 7 Embodied Carbon in Materials Reduction 15% 8 Sustainability Rating System 2 litres/m2/day 3 Pearl Estidama PBRS LEED Gold

11 MONITORING DURING OPERATION Masdar City energy efficiency database is collecting and monitoring usage

12 MONITORING DURING CONSTRUCTION

13 MOBILITY

14 CONSTRUCTION WASTE DIVERSION FROM LANDFILL Materials Masdar Institute 610 M3 Blackwood Plywood 1,896 M3 Whitewood 2,374 M3 Steel 2,157 M3 Plastic Pipes 158 M3 Electrical wire 23 M3 7,657 M3 Concrete 48 M3 Plaster board 14,927 M3 Total 92% DIVERSION FROM LANDFILL

15 SIEMENS BUILDINGS Image Credit: Hufton + Crow Architect: Sheppard Robson / AECOM

16 SIEMENS BUILDINGS Image Credit: Hufton + Crow Architect: Sheppard Robson / AECOM

17 Sustainability KPI s :: Estidama PBRS Key Fact Figures

18 IRENA HQ Architect: Woods Bagot

19 IRENA HQ Architect: Woods Bagot

20 IRENA HQ

21 IMPORTANCE OF O&M The operational phase of a commercial building is significantly longer than the design and construction phase of a project. The lifecycle cost of the operational life of a building is about 60 to 85 percent of the total lifecycle cost, where as the design and construction is about 5 to 10 percent.

HIGH PERFORMANCE BUILDINGS OPERATION & MAINTENANCE High performance buildings have more complex mechanical, lighting and control systems Free reheat and dehumidification Solar collectors for domestic

22 HIGH PERFORMANCE BUILDINGS OPERATION & MAINTENANCE High performance buildings have more complex mechanical, lighting and control systems Free reheat and dehumidification Solar collectors for domestic hot-water High effectiveness energy recovery from exhaust air Advanced lighting control Advanced energy management system Low lighting power density Demand-controlled ventilation External shading elements EC DC Fan coil units Maximizing daylit zones High-performance glass High albedo roof coating Airtight envelope Well insulated walls and roof Optimal window to wall ratio

23 COMMON FINDINGS IN BUILDINGS MEP systems oversized Low chilled water delta T Improper commissioning Unbalanced air & water system Oversupply of OA Air short circuits in chiller Continuous operation of systems Variable speed overridden Poor Fit-out works Clogged filters Low temperature set-points Dirty condensers Uncalibrated sensors Unskilled operators Unsuitable metering Absence of O&M manuals

O&M BEST PRACTICES Incorporate goals for energy efficient building operation into the strategic business plan Train building operators with energy efficient O&M activities & Equip them with the right

24 O&M BEST PRACTICES Incorporate goals for energy efficient building operation into the strategic business plan Train building operators with energy efficient O&M activities & Equip them with the right diagnostic tools Perform regular site assessments, Collect and Analyze Data with Audits and Meters Obtain a clear, written set of sequences of operation and building control strategies Make full use of automatic controls to guarantee efficient operation & Operate equipment only when needed Track actual performance against expected performance Calibrate energy systems regularly, Consider commissioning, re-commissioning & retro-commissioning Most efficiently designed systems are horribly inefficient after several years of operation

5:30pm 5:30pm - 8:30am 60% of energy consumed on HVAC kwh 1962 2550 Nb of

25 ENERGY USE ANALYSIS Energy Use Breakdown in Building: Hourly Elec. Usage (kwh) in Building on a specific working hours Off hours 8:30am - 5:30pm 5:30pm - 8:30am 60% of energy consumed on HVAC kwh Nb of hours 9 15 kwh/hr Working hours vs. off hours Elec. Usage in Building on a day

26 SUMMARY OF ENERGY CONSERVATION MEASURES Energy Project Measure Number Measure Description Elec. Savings (kwh) Elec. Savings (%) CHW Savings (TRh) CHW Savings (%) Equiv. Energy Savings (kwh) Equiv. Energy Savings (%) Total Cost Savings (AED) Total Cost Savings (%) ECM-1 Reduce Flow Rates in OAHUs 218,556 13% 161,792 18% 345, % 77, % ECM-2 Turn off OAHUs after Office Hours 62,793 4% 97,075 11% 138, % 35, % ECM-3 Increase FCUs Set-points - 0% 31,950 4% 24, % 8, % ECM-4 Turn off FCUs after working hours 36,792 2% 36,210 4% 65, % 15, % 318,141 19% 327,028 36% 573, % 135, % VENTILATION SYSTEM IMPROVEMENTS AIR CONDITIONING SYSTEM IMPROVEMENTS TOTALS

27 SUCCESS STORIES CHILLER OPERATION

28 SUCCESS STORIES AIR SYSTEMS OPERATION (FANS)

29 SUCCESS STORIES LIGHTING SYSTEM OPERATION

30 THANK YOU

Example LEED-NC v2.1 Energy & Atmosphere Credit 1 Submittal

Example LEED-NC v2.1 Energy & Atmosphere Credit 1 Submittal The following documentation provides an example submittal for the LEED-NC v2.1 Energy & Atmosphere Credit 1 (EAc1). This sample EAc1 submittal