Controls Sub-Metering Improvements
The Department has identified seven (7) buildings it
wishes to monitor and verify data as part of the utility control sub-metering
project.
For existing facilities that are already sub-metered to improve efficiencies,
the previous years energy performance serves as the baseline for
evaluating potential upgrades.
The Department plans to apply sub-metering technology to three utilities for
buildings 5000 sq ft and above.
The Department will prioritize energy improvement programs for the buildings
based on their determined efficiencies. The savings that are generated
after a retrofit can be a fraction of a facilitys total energy use, and it can
be difficult to estimate project savings from analysis of monthly utility bills
alone. As such, indirect methods such as energy modeling and
engineering calculations are often used to estimate savings. Readings
prior to and after the retrofit can be used to establish both the energy use
baseline and the energy savings if the end-uses of buildings are
individually metered.
