The questionnaire elicited information on billed electricity consumption
for a 1-year period between June 2008 and July 2009.
This also included information on monthly back-up power used
for this period since power outages are common in Bangalore and
most facilities are equipped with diesel generators to provide backup
power. The total electricity consumption was used along with
the total leased area for tenanted facilities and built up area for
owned buildings to arrive at the EPI. Typical operating hours in a
day and operating days in a week obtained for each sub-activity (IT,
ITES, Labs, data centres and common areas) were weighted by the
proportion of areas of each sub-activity and used to determine the
AAhEPI