Page 33 - HUDCO-SHELTER-APR21

THEME PAPER
Figure 1: Highlights of ECBC 2017
Source: ECBC
new sections to have an The ECBC prescribes following
International Benchmark, Code practices -
specific to Indian Climate and
Construction and emphasis on
future net-zero building and a
snapshot of its provisions,
scopes, and requirements is
outlined in Figure 1.
The Sectoral Energy Consump-
tion as per the 18th Electric
Power Survey of Central
Electricity Authority in
Commercial Sector and
Residential Sector shows that
maximum power consumption
is for obtaining thermal comfort.
The consumption pa ern for
typical electricity use in
buildings in the Commercial
sector shows that 31% may be
a ributed to AC while in
Residential 34% consumption
may be contributed to fans and
7% to AC. Application of building
codes reduces electricity
consumption by 25% to 30%.
insulation to mitigate the
heat island effect of cities
built environment. Flood-
proofing can be achieved
through metal edging on
corners and fireproofing of
buildings through building
materials of 2 hours rating.
Ø Stringent controls for Heating
Ventilation and Air
Conditioning (HVAC) system.
Ø Solar hot water heating, solar
lights for the landscape, and
Solar PV panels for electricity
generation on site may be
installed in suitable locations.
Ø Electrical systems utilizing
renewables.
Ø The Building Envelope The ECBC can reduce energy
(Walls, Roofs, Windows) consumption by 20%- 25% in
Lighting (indoor and large commercial buildings. As
outdoor)- The leaks in the per the ECBC 2017, the potential
façade, especially at the impact of mandatory enforcement
peripheries of openings, add of ECBC for the year 2017-18 had
to heating/ cooling loads a technical potential of yielding
which can be prevented by savings of 4.3-billion-kilowa -
proper sealing. Using hour and 3 million metric tons of
energy-efficient glass is an CO₂.⁶ (h ps://beeindia.gov.in/).
option, but innovative The impact on energy performance
nature-based solutions such varies from 20% in Moderate
as green balconies that bring climate conditions to 25% in
nature into our homes are a India's Warm and Humid zones.
highly recommended design Hence, over the lifetime of a
solution. The cool roofs of building, it is very useful to take
buildings can be effectively steps to reduce the energy in use
designed with a whitewash through active and passive solar/
of calcium carbonate, white climatic design measures, but it
or aluminum paints, or white is more important to use the
mosaic of reused broken building materials with low EEV
ceramic tiles. Moreover, roof and quantities of the materials
and terrace gardens can be must be minimized especially
cultivated for shade and masonry.⁷
April 2021 Volume 22 No. 1- SHELTER 31