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Green Buildings and their rating system in India


A green building is one which uses less energy, water and natural resources, creates less waste and is healthier for the people living inside compared to a standard building.

• Energy saving to the extent of 30 - 40 %.
• Enhanced indoor air quality.
• Higher productivity of occupants.
• Potable water saving to the tune of 20% - 30%.
• Enhanced day light & Ventilation.
• Green buildings have a smarter lighting system that automatically switches off when no one is present inside the rooms.
•  Simple technologies like air based flushing system in toilets that avoids water use by 100%.
• Use of energy efficient LED’s and CFL’s instead of conventional incandescent lamp.
Green building ratings in India
• Green Rating for Integrated Habitat Assessment (GRIHA)
Green Rating for Integrated Habitat Assessment (GRIHA) is India’s own rating system jointly developed by TERI and the Ministry of New and Renewable Energy, Government of India. It is a green building design evaluation system where buildings are rated in a three-tier process.

The GRIHA Rating System contains 34 evaluation criteria with 100 points. These criteria have been categorized into (i) Site Planning including conservation and efficient utilization of resources, health and wellbeing during building planning and construction stage (ii) Water Conservation (iii) Energy Efficiency including energy embodied & construction and renewable energy (iv) Waste Management including waste minimization, segregation, storage, disposal and recovery of energy from waste and (v) Environment for good health and wellbeing.

Commonwealth Games Village, New Delhi, Fortis Hospital, New Delhi, CESE (Centre for Environmental Sciences & Engineering) Bldg, IIT Kanpur have received GRIHA ratings.

• Leadership in Energy & Environmental Design  India

LEED is an internationally recognized green building certification system, providing third-party verification that a building or community was designed and built using strategies aimed at improving performance across all the metrics that matter most: Energy savings, water efficiency, CO2 emissions reduction, improved indoor environmental quality and stewardship of resources and sensitivity to their impacts.

The Indian Green Building Council has adapted LEED system and has launched LEED India version for rating of new construction.

• Bureau of Energy Efficiency (BEE)

BEE developed its own rating system for the buildings based on a 1 to 5 star scale. More stars mean more energy efficiency.

BEE has developed the Energy Performance Index (EPI). The unit of Kilo watt hours per square meter per year is considered for rating the building and especially targets air conditioned and non-air conditioned office buildings.
The Reserve Bank of India’s buildings in Delhi and Bhubaneshwar, the CII Sohrabji Godrej Green Business Centre and many other buildings has received BEE 5 star ratings.
 

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