Infosys SDB Block-1 is India's first radiant cooled commercial building, reducing energy consumption by 56% compared to benchmarks. It uses radiant cooling technology where chilled water circulates through pipes in floors, walls or ceilings to absorb heat. The building is also designed with green architecture principles like high insulation, double glazed windows, and restricting the floor plate width to 16m to maximize natural daylight without glare. Smart building systems provide intelligence to operations through energy saving algorithms and ensure employee comfort while identifying potential energy savings.

1. Infosys SDB Block-1
A case study about their ‘green
initiatives’

2. India’s first radiant cooled commercial building has managed to
reduce energy consumption by 56% from GRIHA benchmark. This
is a 5 star GRIHA rated building.

3. Radiant Cooling Technology
Radiant cooling is an innovative approach to
comfortable, high-efficiency cooling. Pipes
are installed in floors, walls, or ceilings and
circulate chilled water. Radiant cooling is
most effective when used in conjunction
with other energy-reducing systems.
Cooling inside the office space is achieved
when the cold slab absorbs the heat
(radiation) generated by people, computers,
lighting and other equipment which are
exposed to the slab.

4. Green Architecture
• This building is designed according
to solar passive principles and has
a high performance building
envelope, consisting of insulated
walls and roof.
• The windows have glass in a
double glazed unit with argon infill.
This ensured that the overall solar
heat gain is limited to 1 w/sqft.
• The width of the floor plate is
restricted to 16m to ensure
adequate daylight from the north
and south facing windows.

5. Natural Daylight Design
• The windows are split into an upper
pane that lets in natural light and
the lower pane which provides the
outside view.
• The windows are completely
shaded with horizontal louvers and
vertical fins to prevent glare. This
ensures that the entire office is day
lit without glare from 8am to 5 pm.
• Above each window, a light shelf (a
flat, horizontal, panel) is installed
which reflects the incoming sunlight
onto the ceiling, thereby
distributing deeper into the space.

6. Smart Building Systems (SBS)
• Building loads are dynamic because
conditions of weather, occupancy,
and activity all vary. SBS builds
intelligence into building operations
in the form of energy saving
algorithms.
• SBS provides the data we need to
understand the energy distribution in
the buildings and identify potential
areas for energy savings.
• SBS systems make sure that the
system is living up to its energy
potential.
• SBS ensures comfort of the
employees by providing the right
indoor air quality.

7. Thank you