for commercial and industrial transformers supplying linear loads in the 30-150 kVA
range is 95%, as compared to 98% for a high efficiency model. Further, conventional
transformer losses, which are non-linear, increase by 2.7 times when _ feeding
computer loads.
EEI recommends the replacement of existing inefficient transformers in order to improve
the energy efficiency ofthe electricaldistribution systems through the replacement
of the transformers with new high efficiency units. The scope of work for this measure
would include:
30 Transformers
(6) 15 kVA
(2) 45 kVA
(2) 75 kVA
(8) 112.5 kVA
(3) 150 kVA
(5) 220 kVA
(1) 225 kVA
(2) 300 kVA
(1) 400 kVA
ECM 5 -— Retro Commissioning
This is an allowance for an engineering and maintenance team to install, repair, and
replace any damaged existing to remain equipment. Existing AHUs will include software
revisions to reduce energy consumption. Includes 5 years of analytics reports.
ECM 6 — Mini Splits
EEI proposes removing the (16) existing Mitsubishi ductless splits.
Furnish and install (16) new Mitsubishi condensing units of the same capacity of the
existing system. Counts are as follows: (4) 1-tonceiling cassette systems, (7) 1.5-ton
ceiling cassette systems, (1) 2-tonceiling Cassette system, (1) 1 ton wall mounted
system, (2) 1.5 ton wall systems, (1) 3.5 ton under ceiling system. New units will be
furnished with wind baffles for low ambient cooling and new wall mounted thermostats
Furnish and install (1) York cooling only system, 3.5-ton cooling
ECM 7 — Condensing Hot Water
The current water heating units are standard efficiency. This measure would be to
replace the current system with high efficiency condensing Lochinvar units Armor Floor
Mounted units with 98% efficiency. The units have a 5:1 turndown with stainless steel
heat exchanger. Scope to include new ASME storage tanks, expansion tanks, and
circulation pumps.
ECM 8 - Targeted Balancing
EEI proposes targeted balancing of the existing ventilation systems. When ventilation
units are over-ventilating it causes unnecessary conditioning of outside air. This
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