EFFICIENT BUILDINGS BEYOND DESIGN... Rumi Engineer.. Godrej Green Building Consultancy Services

Transcription

1 EFFICIENT BUILDINGS BEYOND DESIGN... Rumi Engineer.. Godrej Green Building Consultancy Services

2 GLOBAL SCENARIO 1 Billion new consumers in emerging market cities by 2025 Nearly 80 Cities are expected to build floor space equivalent to 85% of today s building stock Billion cu.m increase in municipal water demand by 2025 Source: Mc Kinsey Report

3 NATIONAL SCENARIO 12.8% Increase in population from Floor space in Cities expected to increase by 8.7% from Nearly 15.8% increase in municipal water demand by 2025 Source: Mc Kinsey Report

4 ECONOMICS OF SUSTAINABILITY Current account deficit (CAD) : Billion US$ : Billion US$ : Billion US $ Gold imports accounts for 12% Oil imports accounts for 30% : 123 MMT : 190 MMT Source: Planning commission of India/McKinsey Global Institute

5 NATIONAL POWER SCENARIO 11 th Five Year Plan: Planned Target Revised Target Achievement :78,700 MW :62,374 MW :54,000 MW 12 th Five Year Plan: Planned Target : 88,537 MW Demand Supply Gap : 12,000 MW INVESTMENT : 1 MW POWER PLANT? 7 CR.

6 DYNAMICS OF ECONOMICS Year Unit (kwh) Rate MD (kva) Rate Cumulative Rate FY FY % Change 18% 33% 14%

7 COST IMPACT?...

8 Energy Efficiency? Design Technology Operation and Maintenance

9 SMART & INTELLIGENT BUILDINGS No Building is an Island Inbuilt intelligence Infrastructure Interactive Informative Accountability 9

10 WATER FLOW RATES IGBC EB Fixtures & Fittings Baseline (Mandatory) 20% Reduction Flow Unit Flow Unit Flow Unit Flow Unit WC 1.6 GPF 6 LPF 1.28 GPF 4.8 LPF Urinals 1.05 GPF 4 LPF 0.84 GPF 3.2 LPF Faucets 2.1 GPM** 8.0 LPM** 1.69 GPM** 6.4 LPM** ** Design Test Water Pressure : 3 BAR / 44 PSI PRICE is measurable, whereas VALUE is immeasurable

11 Recycled Ground Municipal Recycled Ground Municipal Recycled Ground Municipal Recycled Ground Municipal WASTE WATER MANAGEMENT : INCREASE USE OF RECYCLED WATER Trend for Use of Recycled Water 70.00% 60.00% 59.20% 50.00% 45% 48% 51% 40.00% 30.00% 20.00% 12.80% 28% 22% 33% 29% 22.59% 33% 16.00% 10.00% 0.00%

12 Recycling of canteen & garden waste Organic Composting Introduced Organic Composting Vermicomposting : Canteen and Garden waste Organic Compost Yeild in the range of 3 to 4 MT/year 12

13 Reducing Heat Island Effect by Roof Garden 24 Deg C 34 Deg C 26 Deg C 42 Deg C Project: Godrej IT Park at Mumbai Platinum Rated CS project

14 HEAT ISLAND EFFECT NON-ROOF Thermal Gradient : 28 to 43 C

15 Parking Areas with open grid pavers 42 Deg C 33 Deg C Project: Godrej IT Park at Mumbai Platinum Rated CS project

16 TECHNOLOGIES Vertical landscaping STP Reed bed Root Zone Regenerative elevators Hybrid cooling towers Evaporative cooling Motorized shading devices PV installed shading devices Radiant cooling Rainwater harvesting system system Magnetic levitation compressors in chillers VAV-VFD Controls

17 Water Pumping System- An Efficient Pumping Solution Monthly Energy Consumption Reduction : 44% Water Pumping Efficiency Improvement(kWh/KL) : to 3.96 Annual Energy Saving : 78,000 kwh Annual Energy Bill Reduction : Rs. 4,90,000 Investment on Project : Rs. 12 Lacs Payback (months) : 30 Annual Reduction in CO2 Emission : 62.4 MT

18 RETROFIT OF RECIP. CHILLER WITH SCREW.. CASE STUDY ENERGY EFFICIENT CENTRAL AIR CONDITIONING CHILLER 180 TR DX Type Reciprocating AC system 150TR Screw water cooled system More than 15 years OLD. Energy efficient- Screw Chiller Consumption(KW/TR) Consumption(KW/TR)- 0.7 Regular operational breakdown New system Preventive maintenance Refrigerant -HCFC-R22 Refrigerant -HFC134a Investment Rs.40 Lac Annual Savings- Rs. 16 Lac Pay back Years

19 CONDENSER : Approach-in-Energy Efficiency..? COND. APPROACH : DIFF. BETWEEN REF. SAT. TEMP & COND. WATER LEAVING TEMP. Condenser 16 F Energy / mth. : 42,000 kwh % Savings : 19 % Condenser 3 F Energy / mth. : 34,000 kwh TDS CONTROL : AUTO BLOW COOLING TOWER

20 Operation & Maintenance : Area of Concern CT Wr. Fills Scale Formation in Condenser

21 GODREJ BHAVAN... MUMBAI Built Up Area : 41,000 Sq. ft. No of Floors : G + 6 LEED For Existing Building Operation & Maintenance V-2 Gold 56 /92 Sustainable Sites 07/12 Water Efficiency 09/10 Energy & Atmosphere 18/30 Material & Resources 10/14 Indoor Environmental Quality 07/19 Innovation in Design 05/07 Regional priority Credits 04/04

22 SCORE CARD --- ENERGY & WATER Energy Cons. Units Energy Max. Demand kwh Units 48,703 45,406 42,928 44,257 43,655 % diff Base Year -7% -12% -9% -10% kva % diff Base Year -17% -20% -17% -31% Water Units BMC kl % diff Base Year -49% -51% -41% -52%

23 Godrej Bhavan - Y-O-Y Energy Vs Cost Performance 50,000 Actual Energy / Cost Vs Incremental Energy / Cost 5,61,008 6,00,000 49,000 48,000 47,000 46,000 45,000 44,000 43,000 4,17,642 4,17,642 3,84,290 3,77,140 3,54,617 3,22,277 5,04,551 4,58,491 4,98,254 5,00,000 4,00,000 3,00,000 2,00,000 42,000 41,000 40,000 48,703 45,406 42,928 44,257 43, / Base Year Actual Energy Inc. Energy Actual Cost Rs Inc.Cost 1,00,000 - ** The Energy values is measured in kwh ** The Cost unit is INR ** The Values are Considered as Average Values for the FY

24 It s not about the points to get a Building certified The points are not the point The points are not sustainable. Are we missing the actual point? Courtesy : Ar. Karan Grover

25 L & T Office Building (North Block). MUMBAI Built Up Area : 2.3 lac Sq. ft. No of Floors : G + 7 LEED For Existing Building Operation & Maintenance V-3 Gold 73/110 Sustainable Sites 19/26 Water Efficiency 09/14 Energy & Atmosphere 28/35 Material & Resources 05/10 Indoor Environmental Quality 04/15 Innovation in Design 04/06 Regional priority Credits 04/04

26 CISCO BGL-13.. BANGALORE Built Up Area : 2.6 lac Sq. ft. No of Floors : G + 4 LEED For Existing Building Operation & Maintenance V-3 Platinum 87 /110 Sustainable Sites 17/26 Water Efficiency 12/14 Energy & Atmosphere 34/35 Material & Resources 07/10 Indoor Environmental Quality 08/15 Innovation in Design 05/06 Regional priority Credits 04/04

27 OBEROI MALL, GOREGAON Project Details Project Title Building Use Location Size Certification Level Project Team Profile : OBEROI MALL : ENCLOSED MALL : GOREGAON, MUMBAI : SQFTS : GOLD under LEED-EBOM FIRST MALL IN INDIA TO GET CERTIFIED UNDER LEED EXISTING BUILDING CATEGORY Owner : OBEROI REALTY Green Consultant : Godrej & Boyce Mfg. Co. Ltd

28 GENERIC CHALLENGES.. Stakeholder Awareness Project Management : Motivation Energy / Water Accountability at System Level Selection & Sourcing of Appropriate Technology / material Capacity Building : Skilled Workforce Integration of Systems with IBMS Documentation

29 In nature there are neither rewards nor punishments, there are only consequences If civilization has to survive it must live on the Interest, not the Capital of nature! - Ronald Wright

30 OUR SERVICES Green Building Consulting Building Simulation Building Commissioning MEP Design Consulting Building Information Modeling (BIM) CFD Analysis Third Party Audits