It is about how can we use the energy efficiently in the buildings

1. ENERGY EFFICIENT
BUILDING

2. INTRODUCTION
In current times of
rapid infrastructure
growth & looming
energy crisis,
there is a strong
need to address and
incorporate good
practices for efficient
energy and resources use
while planning for building, be it for residential purpose
or for commercial applications.

3. WHAT IS A GREEN BUILDING?
 A green building is one which incorporate
several green features.
Use of energy efficient & eco – friendly
equipment.
Quality indoor air for human safety and comfort.
Use of renewable energy.
Effective controls and building management
system.
Efficient use of water.
Effective use of existing landscapes.

4. BENEFITS OF
GREEN BUILDING
30% - 40% reduction in operation cost.
Green corporate image.
Health and safety of building
occupants.
Enhance occupant comfort.
Improve productivity of occupants.
Incorporate latest techniques and
technologies.

6. PLAN FOR MINIMUM
ENERGY REQUIREMENT
Design the building envelope and building system
to maximize energy performance.
Use a computer simulation model to assess the
energy performance and identify the most cost
Effective energy efficiency measures.
Quantity energy performance as compared to a
baseline building.
Have an energy audit performed for the facility
regularly.

7. OPTIMIZE ENERGY
PERFORMANCE
Have an energy audit conducted for the building /
facility design the building envelop & building
system to maximize energy performance.
Use a computer simulation model to assess the
energy performance and identify the most cost
effective energy efficiency measures.
North light roofing, transparent roof sheets,
ventilation design, chimney effort through lower
design, high ceiling, roof cooling salts.

8. PLAN FOR INCREASING LEVELS
OF RENEWABLE
TECHNOLOGY USE
Assess the project for renewable energy
potential including solar, wind, geothermal,
biomass, hydro, and bio – gas strategies.
Solar PV, CFL, solar hot water system, solar
cookers, bio – gas plants(rural
segment),vermin composting.

9. PLAN FOR MINIMIZING
OZONE DEPLETION
When reusing building, replace inventory of
refrigerants and fire suppression chemicals
in existing building systems with those that
certain HCFCs.
For new building, specify refrigeration and
fire suppression systems that use no HCFCs.

10. PLAN FOR EASY ACCOUNTING OF
ENERGY &WATER CONSUMPTION
Lighting systems and controls.
Constant and variable motor loads.
Cooling load.
Boiler efficiencies.
Variable frequency drive (VFD) operation.
Indoor water risers and outdoor irrigation
systems.
Air distribution static pressures and
ventilation air volumes.

11. SOME
ILLUSTRATIVE
NORMS
Lighting – 8 Watts / M^2
Air conditioning – 0.15 TR / M^2
U – value of roof – 0.63 Btu /hour / square
feet / degree F with R – 15 insulation
U – value of wall – 0.58 BTU / hour/ square
feet / degree

12. PLAN FOR BUILDING
LIFE EXTENSION AND
RE - USE
Consider reuse of existing building,
including structure, shell, and non – shell
elements.
Remove elements that pose contamination
risk to building occupants and upgrade out
dated components such as windows,
mechanical systems, and plumbing filters.

13. SOME MORE GOOD PRACTICES
Fly ash based cement for use.
Declaration of building as “non – smoking”.
Co2 sensor installation.
Use of composite wood.
Day light view for 90% occupied areas.
Site location close to bus and rail lines.
Regular checks on AHU filters.
Rain water harvesting.
Drip irrigation.
Day – light dimmer controls.
Fast growing plantations.
Extension roof garden coverage.