Page 9 - GRIHA Manual Volume III - Introduction to National Rating System
P. 9
2 GRIHA Manual: Volume 3
2. Optimization of electro-mechanical (lighting & HVAC) systems to reduce energy consumption.
3. Use of renewable energy systems (solar photo voltaic system & solar water heating systems) for
generation of green energy.
GRIHA effectively addresses the energy issues in buildings through the criteria listed below.
Building and system design optimization
Criterion-13: Optimize building design to reduce conventional energy demand.
This criterion suggests various passive, low-energy strategies to be adopted in order to allow for
maximum thermal and visual comfort for building occupants in the most energy efficient manner
possible. This criterion also addresses solar gains through envelope and recommends measures for
solar control.
Criterion-14: Optimize energy performance of building within specified comfort limits
This criterion suggests compliance with the mandatory requirements of ECBC 2007 and reduction
in the Energy Performance Index of the building below benchmark levels while ensuring thermal
comfort for building occupants.
Renewable energy application
Criterion 18: Renewable energy utilization
This criterion suggests utilization of renewable energy technologies for meeting energy requirements
of the building.
Criterion 19: Renewable-energy based hot water system
This criterion suggests use of solar water heaters to reduce the dependence on electrical geysers for
heating water.
Non-applicability: This criterion is not applicable for projects with miminum hot water demand
of less than 500 litres per day.
Structure of the Manual
In the following volume each of the above mentioned criteria is expressed with a detail elaboration
of GRIHA specific information as well as all the background information related to the criterion. All
explanations for individual criterion have the following information:
# Introduction (issues related to the criterion and detrimental effects of bad practices on
environment)
# Solutions (how to make sustainable/good practices)
# GRIHA specific information (commitments, compliances, appraisal)
# Methodology (detailed analysis process)
# Guide to use GRIHA online evaluation tool.
2. Optimization of electro-mechanical (lighting & HVAC) systems to reduce energy consumption.
3. Use of renewable energy systems (solar photo voltaic system & solar water heating systems) for
generation of green energy.
GRIHA effectively addresses the energy issues in buildings through the criteria listed below.
Building and system design optimization
Criterion-13: Optimize building design to reduce conventional energy demand.
This criterion suggests various passive, low-energy strategies to be adopted in order to allow for
maximum thermal and visual comfort for building occupants in the most energy efficient manner
possible. This criterion also addresses solar gains through envelope and recommends measures for
solar control.
Criterion-14: Optimize energy performance of building within specified comfort limits
This criterion suggests compliance with the mandatory requirements of ECBC 2007 and reduction
in the Energy Performance Index of the building below benchmark levels while ensuring thermal
comfort for building occupants.
Renewable energy application
Criterion 18: Renewable energy utilization
This criterion suggests utilization of renewable energy technologies for meeting energy requirements
of the building.
Criterion 19: Renewable-energy based hot water system
This criterion suggests use of solar water heaters to reduce the dependence on electrical geysers for
heating water.
Non-applicability: This criterion is not applicable for projects with miminum hot water demand
of less than 500 litres per day.
Structure of the Manual
In the following volume each of the above mentioned criteria is expressed with a detail elaboration
of GRIHA specific information as well as all the background information related to the criterion. All
explanations for individual criterion have the following information:
# Introduction (issues related to the criterion and detrimental effects of bad practices on
environment)
# Solutions (how to make sustainable/good practices)
# GRIHA specific information (commitments, compliances, appraisal)
# Methodology (detailed analysis process)
# Guide to use GRIHA online evaluation tool.
