Page 150 - GRIHA Manual Volume IV - Introduction to National Rating System
P. 150
Building operation and maintenance 141



CRIteRIon 32








AudIt And vAlIdAtIon





Introduction

In addition to incorporation of ‘green’ design features during design and construction of a building,
it is equally important to ensure that energy and environmental systems incorporated in the
building are performing as predicted during the design and development stage. Through audits,
the performance of these systems can be evaluated and the validity of the predicted performance
can be determined. Incase a system is not performing as expected; the audit process will identify
the cause for deterioration in the performance and also provide recommendations regarding for
the need for the upgradations or modifications of the systems.
Solution

Conducting an audit is the first step towards ensuring that the building systems are performing as
designed. Audit process will provide an idea on how efficiently a particular system is working and
will also identify areas (if any) where there is any potential for improvement.
Following are the major areas of a building that should be audited to assess the overall
performance of a building.

1. Energy audit

Energy audits are conducted to assess the overall energy performance of buildings and
identify opportunities for energy conservation. Audit of total energy consumption of the
building provides an understanding of the different forms of energy that are being used in
a building and energy consumption of specific end uses.

Type of Energy Audit
Energy audit may range from a simple walk-through survey, to one that may extend over
several phases. These phases will include a preliminary walk-through survey, followed by
monitoring of energy use in the building services, and then detailed analysis of building
energy use patterns using computer simulation software.
Preliminary audit or walk-through audit

Preliminary energy audit is a relatively quick and simple exercise. It involves brief interviews
with site-operating personnel, a brief review of the building utility bills and other operating
data, and a walk-through of the building to
• become familiar with the building operation
• establish energy consumption of the building
• estimate the potential for energy saving
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