© 2020 Cognizant
21st National Award for Excellence in Energy Management Cognizant Technology Solutions (I) Private Limited Chennai-Siruseri STPI
Ramesh Dasarathan (Senior Manager)
L Naresh Kumar (Assistant Facility Manager)
N Selvia (Senior Executive)
© 2020 Cognizant2
Agenda
• Company Profile
• Energy consumption overview
• Specific Energy consumption in last 3 years (2017-2019)
• Information on Internal, External, National & Global Benchmark
• List of Major Energy conservation project planned in 2020
• Energy Savings project implemented in last 3 years
• Innovative Project implemented details (2017-2020)
• Utilization of renewable Energy sources
• Waste utilization & management
• GHG Inventorisation
• Green Supply chain management & Implemented project through green purchase policy
• Team work, Employee involvement & monitoring
• Other Innovative technologies implemented
• Awards & Certification
Cognizant Overview
© 2020 Cognizant
Cognizant is a multinational corporation that provides IT
services, including digital, technology, consulting, and
operations services. It is headquartered in Teaneck, New
Jersey, United States.
159 delivery and operation centers globally and spread
across 39 countries
• Global foot print of 24 million+ built up in which 13.6 million
SFT of these Owned Facility
• Majority of these operations are in hot and humid climate and
significant percentage support 24x7 operations
• More than 80% of the space is air-conditioned
• The company has more than 291,700 employees globally, of
which 100,000 are women employees. Over 150,000 are in
India.
3
© 2020 Cognizant4
SDB Cafeteria
Academy
Siruseri Campus (SRI) Facility Overview
Year of Start : 2004
Seating Capacity : 4000 Present Head Count : 2600 FTE & 250 CWR
Software Block : SDB1(G+3) Academy(G+3) &
Cafeteria (G+1) Total area of Facility : 9 Acres
Total Built-up area : 312,000 Sq. ft EB Sanctioned Demand : 3250 KVA
HVAC Higher Side : 1610 TR(SDB - 3x350 TR & Academy – 2x280 TR)
Power Back ups:
Transformer : 2 x 2500 KVA ( HT - 11 kV/433V)
DG capacity : 3 x 1500 KVA UPS Capacity : 2 x180 KVA, 2x120 KVA
1 x 40 KVAUtilities:
Fire Sumps : 200 KL Raw Water Sump : 650 KL
Sewage Treatment Plants : 200 KLD HSD Yards : 2 x 15 KL
© 2020 Cognizant5
Year Total Consumption
EPIEnergy
Consumption Reduction (%)
Per Capita (kWh/Month/Associate)
RemarkskWh/Annum/SFT) (kWh/Annum/SQM)
2017 57,28,490 18.36 198.3 10 % 194 Base line 2016-60,42,250 kWh
2018 43,54,955 13.96 150.2 24 % 134 Chiller Retrofit
2019 36,66,892 11.75 126.5 16 % 113 EC Based AHU
1.53
1.16
0.98
0.90
1.10
1.30
1.50
1.70
2017 2018 2019
EPI Comparison in 2017 to 2019 (kWh/Month/SFT)
Energy Consumption Overview - 2017 to 2019
Overall Energy Reduction from 2016 - 39 %
© 2020 Cognizant6
1.591.501.69
1.851.791.761.54
1.72
1.281.171.231.24
1.101.151.201.321.24
1.371.201.181.141.121.04
0.890.841.000.96
1.131.011.03
0.931.010.970.881.10
0.88
0.00
0.50
1.00
1.50
2.00
J a n Fe b Ma r Apr Ma y J un J u l Aug Se p Oc t Nov De c J a n Fe b Ma r Apr Ma y J un J u l Aug Se p Oc t Nov De c J a n Fe b Ma r Apr Ma y J un J u l Aug Se p Oc t Nov De c
EPI TREND - 2017 TO 2019
0
100000
200000
300000
400000
500000
600000
Jan
Feb
Mar
Ap
r
May Jun
Jul
Au
g
Sep
Oct
No
v
Dec Jan
Feb
Mar
Ap
r
May Jun
Jul
Au
g
Sep
Oct
No
v
Dec Jan
Feb
Mar
Ap
r
May Jun
Jul
Au
g
Sep
Oct
No
v
Dec
49
48
50
46
70
20
52
74
60
57
65
20
55
92
20
54
95
50
48
02
60
53
68
00
40
07
50
36
60
30
38
42
20
38
56
10
34
43
90
36
00
10
37
48
80
41
15
40
38
77
10
42
66
30
37
58
90
36
85
75
35
54
60
34
81
10
32
37
40
27
80
20
26
35
20
31
33
80
30
03
50
35
24
00
31
52
70
32
18
50
29
14
20
31
51
50
30
10
90
27
44
40
34
36
15
27
44
07
M ONTHLY KWH TREND - 2017 TO 2019
Energy Consumption Overview - 2017 to 2019
Comparison of SEC with Internal & National Benchmark
© 2020 Cognizant7
Code 001
Load Pattern Study
EMP year-wise Goal
Setting
Prioritized Focus Areas
Implementation Plan & Tracking
Training + R&R
Monitoring and Review
Efficiency – One Unit per square foot per month
Downtime of Equipment – Zero
Complaints relating to comfort – Zero
BEE-National Benchmark
EPI in kWh/Sq. M. / Year
Star RatingWarm and
HumidComposite Hot and Dry
1 Star 200-175 190-165 180-155
2 Star 175-150 165-140 155-130
3 Star 150-125 140-115 130-105
4 Star 125-100 115-90 105-80
5 Star Below 100 Below 90 Below 80
Code 001
© 2020 Cognizant8
Lift Retrofit
8 Nos 18.5 kW – 9
kW
Rooftop
Solar
PV Power
Plant
422 kWp
Additional
Wind
Energy
Quantum
45 % - 60 %
LED
Retrofit
500 Nos
2*36W -
24W
Energy Saving & Renewable Energy Utilization Initiatives 2020
© 2020 Cognizant9
2017
•No of initiatives - 6
•Energy Saving - 1.21 L kWh
•Cost Savings - INR 12. 1
Lakhs
• Investments – INR 10.06
Lakhs
•ROI – 10 Months
2018
•No of initiatives - 6
•Energy Saving - 8.4 L kWh
•Cost Savings - INR 84 Lakhs
• Investments – INR 490 Lakhs
•ROI – 70 Months
2019
•No of initiatives - 4
•Energy Saving - 0.92 L kWh
•Cost Savings - INR 9.2 Lakhs
• Investments – INR 8.7 Lakhs
•ROI – 11 Months
Energy Saving projects implemented in 2017 to 2019
© 2020 Cognizant10
Energy saving projects implemented in 2017 to 2019
Sl No Project Details YearInvestments
(Rs million)
Savings
(Rs million)
Payback
(Months)
1 Replacing of 250W MH to 24W LED in peripheral areas ( 51 Nos) 2017 0.7 0.25 31
2 Lighting circuit modif ication in dining hall area at cafeteria block 2017 0 0.06 0
3 Retrofit of 36W tube Light to 18W LED Tube 4 feet across campus 2017 0.23 0.15 7
4 AC Duct Modif ication activities from Cafeteria GF AHU to Medical center 2017 0.13 0.05 5
5 High Mast Light Circuit Modif ication - 2 Nos 2017 0 0.07 0
6 Motion Control Sensor for rest room lighting (20 Nos) 2017 0.047 0.63 1
7Retrofit of conventional ACC w as replaced w ith Energy Efficient ACC chiller (
Academy -280TR * 2Nos & SDB - 350 TR * 3 Nos)2018 37.75 6.30 71.91
8 Existing AHU replaced w ith EC Fan based AHU in SDB & Cafeteria (19 Nos) 2018 9.83 1.27 93
9 Replacing of Conventional 250W MH Street Light to Solar f ixtures (4 Nos) 2018 0.14 0.03 50
10Existing 2X18 w atts light f itting has been replaced w ith 15 * 12 w atts LED
fitting (583 Nos)2018 0.42 0.21 24
11 Replacing of Conventional 250W MH Street Light to Solar f ixtures (7 Nos) 2018 0.14 0.03 50
12 Effective operation of chiller through CPM (Chiller Plant Manager) 2018 0.76 0.55 17
13 Timer based AHU Operations in SDB & Cafeteria AHUs ( 19 Nos) 2019 0.038 0.050 9
14AHU & CSU schedule timing has to be revised based on project operation
timings2019 0 0.05472 0
15 Pull Cord sw itches in all blocks 2019 0.022 0.035 8
16 Existing 2*36 w atts light f itting has been replaced w ith LED 30S (500 Nos) 2019 0.83 0.82 12
© 2020 Cognizant11
IP 1 – ACC Chiller Retrofit (Academy 280TRx2Nos & SDB-350TRx3Nos)
Conventional Air cooled chillers at our facility are 13+ years old, facing frequent breakdown & cooling issues. These
chillers are beyond economical repairs and currently OEM is extending service at premium cost which excludes life cycle
replacement parts. Due to the technological obsolescence of these chillers, utility costs have also high
No Changes in the capacity of chillers
Integrated Variable frequency drives to improve part load efficiencies and reduce inrush current
The performance of chillers is enabled with Enterprise level software with integrated Chiller plant manager
Best in Co-efficient of performance with an annual average Electrical consumption less than 1kW/TR
New EC fans, Patented flooded evaporator & Adaptive Frequency Drive
Specific Power Consumption
1.4 kW/TR
Specific Power Consumption
1.17 kW/TR
Specific Power Optimization
0.25 kW/TR (18 %)
Conventional Chiller New Chiller Specific Power
© 2020 Cognizant12
Innovative Project 1 - Chiller Retrofit
After
Chiller Performance Agreement
Before
© 2020 Cognizant13
Innovative Project 1 - Chiller Retrofit
SL.No Description Value Unit
1 Chiller and accessories cost 484 INR Lakhs
2 Civil work Modification cost ( Base Structure) 53 INR Lakhs
3 Total Investment Cost ( Chiller + Civil work ) 537 INR Lakhs
4 Old Chiller AMC cost for 5 Years 113 INR Lakhs
5 Old Chiller scrap cost 36 INR Lakhs
6 Total Savings(AMC & Scrap disposal) 149 INR Lakhs
7 Net Investment Cost 378 INR Lakhs
8 Avg. Energy consumption reduction 57564 kWh/Month
9 Achieved Annual Energy Saving 6.9 L kWh/Annum
10 Average Energy Cost 10 INR/kWh
11 Achieved Annual Cost Saving 69 INR Lakhs/Annum
12 Pay Back period 5 Years
Summary of
Savings
Energy Saving - 6.9 L
kWh
Cost Savings - INR 69
Lakhs
Investments - INR 378
Lakhs
ROI - 5 Years
© 2020 Cognizant14
Innovative Project 2 - AHU Retrofit
Existing AHU replaced with EC Fan based AHU in SDB & Cafeteria
Conventional AHU in our facility are 13+ years old
Conventional AHU Capacity - 352 kW (19 Nos x 18.5 kW )
EC Fan installed Capacity - 287 kW ( 82 Nos x 3.5 kW)
Total Capacity Optimization – 65 kW(18 %)
EC fan Standalone operation to reduce the energy based on return air temperature
Specific Power Consumption
1.03 Watts/CFM Specific Power Consumption
0.62 Watts/CFM
Conventional AHU EC Fan
Specific Power Optimization
40 %
Specific Power
© 2020 Cognizant15
Innovative Project 2 - AHU Retrofit New EC fan based AHU
© 2020 Cognizant16
Innovative Project 2 - AHU Retrofit
SL.No Description Value Unit
1 AHU & Accessories cost 168 INR Lakhs
2 EC Fan & Accessories cost 45 INR Lakhs
3 Total Investment Cost ( AHU + EC Fan ) 213 INR Lakhs
4 Old AHU AMC cost 4 INR Lakhs
5 Old AHU Scrap cost 2 INR Lakhs
6 Total Savings (AMC & Scrap disposal) 5 INR Lakhs
7 Net Investment Cost 208 INR Lakhs
8 Avg. Energy consumption reduction 20670 kWh
9 Achieved Annual Energy Saving 2.5 L kWh/Annum
10 Average Energy Cost 10 INR/kWh
11 Achieved Annual Cost Saving 25 INR Lakhs/Annum
12 Pay Back period 8 Years
Summary of
Savings Energy
Saving - 2.5 L kWh
Cost Savings - INR 69
Lakhs
Investments - INR 25
Lakhs
ROI - 8 Years
© 2020 Cognizant17
Innovative Project 3 - Timer Based AHU Operation Control
Manual operations of AHUs ( 19 Nos)
Total Duration of switching operation - 40 Min. (ON-20 Min & OFF-20 Min)
To minimize to technician daily AC assignment & implemented the energy saving initiatives process timer based AHU
Operations in SDB & Cafeteria
Based on the set time all the AHUs has operated simultaneously & achieved the chiller load with minimum time period
The entire activities completed by our In-House Team with Regular consumables
AHU Operation -Manual AHU Operation – Timer Controller
© 2020 Cognizant18
Day Monday Tuesday Wednesday Thursday Friday
Average AHU kWhBefore 378 372 369 365 363
After 355 351 346 341 340
Savings/Day 23 21 23 24 23
No of weekdays 4 4 4 4 4
Savings/Month92 84 92 96 92
456 kWh
Innovative Project 3 - Timer Based AHU Operation Control
Summary of Savings
Energy Saving - 4565
kWh/Annum
Cost Savings - INR 54720
/Annum
© 2020 Cognizant19
Utilization of Renewable Energy Sources - 2017-2020
0%
10%
20%
30%
40%
50%
60%
TNEB (%) DG (%) Wind (%)
58%
2%
39%
45%
2%
53%54%
3%
43%
2017 2018 2019
Technology(Electrical)
Type of Energy Onsite/OffsiteInstalled Capacity
(MW)Generation
(million kWh)% of overall
electrical energy
Electrical Wind Offsite NA 6.1 45%
Total
Renewable
Energy
61 L kWH
(45 %)
© 2020 Cognizant20
Year Installed Capacity
(MW)
Total wind energy Contracted Quantum
(Lakhs kWh)
Actual suppliedwind energy quantum
(Lakhs kWh)
STPI-Consumption(Lakhs kWh)
Allocation contribution
(%)
2017-18 256.85 325 381 20 5%
2018-19 256.85 525 511 19 4%
2019-20 256.85 525 509 16 3%
• In FY 2018-19 additional quantum of 200 Lakhs kWh purchased with a investment of INR.200 Lakhs
• RPO is complied in FY 2017-18 as Solar – 5% and Non Solar – 9%
Solar REC purchased - 101 No’s
Non Solar REC purchased - 182 No’s
• Allocation contribution reduction for FY 2018-20
Tariff – Industrial with Tax (Normal - INR.6.35/kWh)
Less wind generation during peak seasonal months
Utilization of Renewable Energy Sources - FY 2017-2020
© 2020 Cognizant21
Sl No Year(2019-20) Type of waste generatedQuantity of waste
generated (MT/year)Disposal method
1 2019-2020 Hazardous Waste 0.82Used oil disposed to TNPCB authorized recycler & waste oil disposed to TNWML for Incineration process
2 2019-2020 Non-Hazardous Waste 5.06Carton & Paper waste disposed to Authorized recycler Ms.ITC ltd & Got 142 Reams
3 2019-2020 E Waste 0.38 Disposed to TNPCB authorized recycler
Waste utilization and Management
© 2020 Cognizant22
Scope 1 Intensity : GHG Emission for DG based Electricity Generation (MT of CO2)
Scope 2 Intensity : GHG Emission for EB based Electricity Consumption ( MT of CO2)
GHG Inventorisation Carbon Emission
Description 2017 2018 2019 Remarks
Scope 1 149 111 1096 Scope 1 : TNEB recurrent Power failureScope 2 :
• Overall Energy consumption reduction 40% from year 2017 & Wind Energy allocation
• Renewable Energy utilization increases (2017-39% ; 2018-53% & 2019 – 43%)
Scope 2 2362 1375 1406
Total GHG Emissions 2511 1486 2502
Green Supply Chain Policy
© 2020 Cognizant23
• Uphold the cause of environment, health and safety management
system through compliance to standards and continual
improvement
• Strong environment friendly culture in terms of water, fuel,
electricity and paper consumption
• Green practices such as usage of ecofriendly, recycled and reused
products in every stages of operations with special emphasis on
packaging of material
Minimize generation of waste to a practical extent and handle
(storage, transportation, disposal and tracking end use) it in an
ecofriendly manner so that no harm is caused to the environment
and society at large
Cognizant is committed to excel its performance with respect to Sustainable Development.
The company shall strive to engage all its vendors in this endeavor through sustainable supply chain management initiatives.
To fulfill this commitment, the company shall promote the following practices at the vendors’ end:
© 2020 Cognizant24
Green Supply Chain ManagementLED Retrofit Chiller Retrofit
Standardization of Best Practices
© 2020 Cognizant
Personnel Computer Air-Conditioning
Sleep mode enabled for all
personnel computer
Conventional CPU
replacement with compact
CPU
Awareness created to
Associates to Switch off the monitor while leaving the work place
Workplace Temperature policy standardized :
24 ° C to 26 ° C
Maintaining UPS/Battery room Temperature b/n
25 ° C to 26 ° C
Hub room temperature maintained b/n
24 ° C to 26 ° C
Elimination of Electrical Hot plate
Mandatory use of BEE Star rated equipment's
Scheduled operation of Ventilation System
Periodical Cleaning of Heater in Bain-marie
Standard Operation temperature for all Freezer equipment
Weekly deep cleaning for all type of Freezer
Kitchen / Pantry
25
© 2020 Cognizant26
Monthly Energy Performance TrackingDaily Report
FMS – Daily & Monthly Energy Tracking Chiller Monitoring
Measuring,Monitoring Device & Tool
© 2020 Cognizant27
Initiative by In house Team
2*36W tube Light to 18W LED38340 kWh/Annual
AC Duct Modification
16080 kWh/Annual
Pull Cord Switches
3552kWh/AnnualLighting circuit modification
7200 kWh/Annual
Motion Control Sensor for rest
room lighting
250W MH Street
Light to Solar fixtures
Timer based AHU
Operations control 5436 kWh/Annual
Annual
Energy
Saved
113512 kWh/
Annum
© 2020 Cognizant28
Employee Involvement Programs
© 2020 Cognizant29
List of Certifications & Achievement
S.No Name of the Certificate Year of Receipt Given by
1OHSAS 18001:2007 EMS 14001:2004
2017 DNV
2OHSAS 18001:2007
EMS 14001:20042019 DNV
Certifications
Achievement
BYOM Implemented– No Paper Cups across facility
Plastic strips usage stopped across campus
Earth Hour Celebrations
Herbal Garden developed in the campus
Nursery Garden created and Distribution of Plant sapling
Ban on one time plastic
© 2020 Cognizant30
List of Certifications & Achievement
SRI STPI
© 2020 Cognizant31
Technologies Implemented - Chiller Plant Optimizer (CPO)
Web based building automation system
Load determination effectively , chiller Set-Point control and Add
and subtract logic
Rotation & Failure recovery
Match Plant capacity to building load & run few chillers as possible
at optimal efficiency
Customized reports & trends
Soft load/unload at start of chiller prevent a peak in electric
consumption that would happen if all the chiller were started at the
same time
Avoid electrical consumption peaks when start a chiller & avoid
flow discontinuities
Effective operation of chiller through CPO (Chiller Plant Optimizer)
Annual Reduction of Energy Consumption 60,000 kWh/Annum
© 2020 Cognizant32
Energy Efficient Unit 2019 Excellent Energy Efficient Unit 2018
CII award
© 2020 Cognizant33
Way Forward
Energy Efficiency
IOT & Digital
Green Energy
Three Way
Approach
1.Reduce power consumption through optimization of capacity utilization and validation operational parameters.
2.Technological upgradation with higher efficiency asset replacement through Retrofit projects - LIFTS
1.Deploy data analytics & machine learning tool to improve Energy efficiency of chiller plant.
2. Collaborate with IFM service partners in implementing data analytical tools in energy Efficiency
1.Increase renewable Energy portion from the total Energy requirement through green power procurement.
2. Install rooftop solar panels in owned campuses
Thank You