EC-53 building of Infosys in Bangalore is the first building in India to implement a radiant panel based cooling, developed in-house, leading to sensible cooling. EC-53 building of Infosys in Bangalore boasts of achieving the target of 50% reduction in per capita electricity and 42% water consumption.
For its commitment to develop a green infrastructure through various energy efficiency measures and sustainable practices, Infosys was inducted in to the ACREX Hall of Fame on February 24th, 2017 at ACREX 2017.
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Infosys – A history of Energy Conversation
Infosys has been a frontrunner in energy conservation, and creating eco-friendly
green spaces. Sustainability, water efficiency and harvesting, energy &
atmosphere, eco-friendly materials & resources, and indoor environment quality,
are some of the key aspects in Infosys’ integrated approach to developing energy
efficient buildings.
EC-53 (M&C Building) at Bangalore was another such example of the company’s
approach to developing and maintaining green infrastructure.
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Creating Energy Efficiency Exteriors
The Building Essentials; Building area: 160,000 sq.ft; Peak cooling Requirement: 160TR
Adequate Insulation from external heat
• Insulated walls and roof
• White paint on roof
• High performance glass + shading on windows
First-of-a-kind Rooftop Solar Power
Generation
• 5 different types of solar PV plants installed
on rooftop
• Generating 90 kW (18 kW x 5 no.)
• Continuous monitoring to compare different
technologies
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Lighting up the interiors
Sourcing Natural Light
Windows designed with day light and vision panels
letting in more natural light
Efficient LED Lighting
Occupancy sensors for cabins, rest room and
meeting rooms
Energy Harvesting Sensors & control
First-of-a-kind wireless and battery-less energy
harvesting sensors and switches installed in the
building to control lighting
Design LPD < 0.5 W/sq.ft
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Design innovation for HVAC
• First building in India to implement a radiant panel based cooling, developed in-house at
Infosys
• Sensible cooling through radiant panels (seen as false ceiling)
• Dehumidified fresh air for ensuring comfort
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Equipping with efficient HVAC systems
• Variable speed drives
- All equipment - chillers, pumps, cooling towers, air system, had variable
speed drives to minimize energy consumption
• Dual loop units for server room
- (DX + chilled water – 8 deg C and 16 deg C) for high efficiency
• Magnetic chillers
- For noise-free operations and longer life
• Automatic tube cleaning system
• STP recycled water for cooling tower makeup
• Chiller plant efficiency : 0.42 kW/TR (average for 2015)
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Automating Building Operations
Building automation technologies used to continuously monitor, manage, and optimize
building operations and ensure efficient energy use
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Reinforcing Efficiency with Innovative Water
Management
• 100% wastewater recycled
- A membrane bio-reactor (MBR) technology-based sewage treatment plant to treat
wastewater, used for flushing, landscape, cooling towers
• Waterless urinals installed
• Optimum water consumption
- Designed for 25 litres per person per day
• Effective rooftop rainwater harvesting
- 42% of water requirement in monsoon months met through rainwater
• Online monitoring of water balance and STP
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Driving High Performance at High Efficiency
• Total building EPI : 84 kWh/sqm per year
- (includes lighting, HVAC, computers, data center, lifts)
• Occupancy: 100%
• Working hours: daytime 100% occupancy
- Night time and weekends 50% occupancy
• Total building peak electrical load: 2.85 W/sq.ft
• 71 percent less water consumption than LEED standards
• LEED Platinum rated
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Realizing Green Goals for Future
• Infosys is working to reduce its per capita electricity consumption by 50 percent from
2007-2008 levels.
• With energy-efficient HVAC, building design innovation, and water management
Infosys has reduced its per capita electricity and water consumption by about 44
percent and 35 percent respectively, between 2007 and 2014.
• The company now has over 3.5 million square feet of LEED Platinum rated and
GRIHA five star rated buildings.