Pearl Building Rating System - Estidama

energy consumption by estimating the amount of energy passing through each meter.
The largest loads should be considered in the first instance and repeated iterations
performed until 90% achieved. Guidance on developing an appropriate metering
strategy can be found within GIL 65: Metering Energy Use in New Non-Domestic
Buildings and CIBSE TM39 2009: Building Energy Metering
� Landlord areas in all building types must meter energy consumption of all end-uses
outlined in the table below.
� For office, retail and multi-residential buildings separated into landlord and tenant
areas, each tenant area must also be sub-metered for each of the end-uses outlined
in the table below.
� All onsite energy generating systems must be separately metered and their annual
energy generation recorded.
� Building types that fall under the General category will follow either:
� Non-Residential: tenant area metering requirements for office;
� Residential (spaces used primarily for living and/or sleeping): tenant area metering
requirements for multi-residential.
� Schools are assumed to be solely landlord controlled and therefore there are no
additional requirements for tenant areas.
� The following table is divided into the metering requirements for landlord and tenant
areas:
LANDLORD
AREAS
TENANT AREAS
Building End-Use Office Retail Multi-Resi
Cooling � � � �
Dehumidification � � �
Service water heating � � � �
Motor Control Centres (fans) � � �
Motor Control Centres (pumps) � � �
Lighting � � � �*
Receptacle and process loads � � � �*
Other major energy consuming
plant (swimming pools,
kitchens, server room, lifts and
escalators etc)
� � �
* Multi-Residential buildings: lighting and receptacle and process loads in tenant areas may
be metered together.
� All sub-meters must have data logging capability and be connected to a central
monitoring system so that information on the building’s energy consumption can be
recorded. The monitoring system must have, at a minimum, the following capability:
� Provide hourly, daily, weekly, monthly and annual energy consumption for each
end-use;
� Compare consumption to previous days, weeks, months and years for trend
analysis;
� Determine ‘out-of-range’ values and alert building operators to unusually high
consumption; and
� Record peak energy consumption for each end-use.
� The building owner must provide a written commitment to supply energy monitoring
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