Measurement and verification of a lighting load reduction project through energy efficiency
Abstract
This paper will describe the methodology and procedures
that were followed to measure and verify
the impact on the electricity use of a lighting load
reduction project implemented at a gold mine. The
lighting retrofit was concentrated on the 100 level
and 100 incline of the gold mine. Since the lights
were underground, it was operational for 24 hours
each day. The proposed project activity aimed to
reduce the electric demand of the lighting system by
replacing the current types of lighting fixtures with
more energy efficient units.
The possibility existed to reduce the lighting load
by 157 kW. These impacts needed to be assessed in
order to verify the DSM impacts and savings for the client, the ESCO and Eskom. Pre-implementation metering was done in order to determine the operational and installed capacity of the original lighting system. Together with the number of lights affected by this project activity and the 24-hour operational profile, this data defined the baseline electricity use
of the project. The same metering techniques and
layout have been used after implementation to
determine the new installed and operational capacity of the new lighting system. This project achieved 99.36% of its contracted target of 157kW. This paper will describe the methodology and procedures that were followed to measure and verify
the impact on the electricity use of a lighting load
reduction project implemented at a gold mine. The
lighting retrofit was concentrated on the 100 level
and 100 incline of the gold mine. Since the lights
were underground, it was operational for 24 hours
each day. The proposed project activity aimed to
reduce the electric demand of the lighting system by
replacing the current types of lighting fixtures with
more energy efficient units.
The possibility existed to reduce the lighting load
by 157 kW. These impacts needed to be assessed in
order to verify the DSM impacts and savings for the
client, the ESCO and Eskom. Pre-implementation
metering was done in order to determine the operational and installed capacity of the original lighting
system. Together with the number of lights affected
by this project activity and the 24-hour operational
profile, this data defined the baseline electricity use
of the project. The same metering techniques and
layout have been used after implementation to
determine the new installed and operational capacity of the new lighting system. This project achieved
99.36% of its contracted target of 157kW
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