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Bi-Level Stairwell Lighting Controls

Typically combine bi-level LED drivers or fluorescent bi-level ballasts and occupancy sensors to reduce lighting levels in stairwells when the stairwell is unoccupied.

TAG Technical Score: 4.14

Program Score: 2.36

Energy Savings: 51%

Regional Potential: 0.91 MWh/year

ID: 108

Server Virtualization

Consolidating the data and processing from a number of partially loaded servers into a single server to cut power use and heat production.

TAG Technical Score: 4.14

Energy Savings: 40%

ID: 164

LED Street Lighting

Lighting fixtures for residential, rural, and city streets that employ light-emitting diode (LED) technology to deliver better light quality and use less energy.

TAG Technical Score: 3.86

Energy Savings: 50%

Regional Potential: 0.41 MWh/year

ID: 78

LED Outdoor Wall-Mounted Area Luminaires

Designed to light walkways and building entries and provide security lighting for areas adjacent to buildings. Wall-mounted area luminaires using LED lamps are becoming widely available.

TAG Technical Score: 3.84

Energy Savings: 58%

Regional Potential: 0.08 MWh/year

ID: 395

Integrated Classroom Lighting System

A combination of efficient light fixtures, high-efficiency fluorescent light sources and user-friendly controls that allows pleasant, indirect lighting during normal use and dimming for audiovisual presentations that is coupled with low-level direct lighting for student t...

TAG Technical Score: 3.72

Energy Savings: 40%

Regional Potential: 0.10 MWh/year

ID: 133

Bi-Level Office Lighting with Occupancy Sensors, Auto-On 50%

Office lighting that turns half the lighting on when occupancy is detected. The other half of the lighting can be brought on manually or turned off as desired for more detailed work, for guests, or other reasons.

TAG Technical Score: 3.68

Program Score: 2.2

Energy Savings: 40%

Regional Potential: 0.72 MWh/year

ID: 222

LED Parking Lot Lighting

Outdoor parking lot lighting employing LED technology.

TAG Technical Score: 3.54

Energy Savings: 46%

Regional Potential: 2.95 MWh/year

ID: 417

Bi-Level Lighting with Occupancy Sensors in Parking Lots and Garages

Parking lot and garage fixtures with bi-level controls typically combining bi-level LED, fluorescent, or induction lighting with occupancy sensors to set lighting to a low level when the space is unoccupied.

TAG Technical Score: 3.52

Energy Savings: 40%

Regional Potential: 0.46 MWh/year

ID: 63

High Performance Elevators

Passenger and freight elevators with efficiency features such as gearless permanent magnet synchronous motors, traction belts instead of steel ropes, dispatch control, and motors with regenerative braking.

TAG Technical Score: 3.5

Energy Savings: 80%

Regional Potential: 0.12 MWh/year

ID: 471

Solid State Drive (SSD)

Faster, solid state data storage used in place of conventional electromechanical hard disk drives (HDDs) in computers and servers.

TAG Technical Score: 3.36

Energy Savings: 50%

ID: 159

Ongoing Commissioning of Economizers in a Data Center

A maintenance protocol/program to verify performance and make corrections to the air or water side economizers in a data center

TAG Technical Score: 3.28

Energy Savings: 10%

Regional Potential: 0.18 MWh/year

ID: 486

Intelligent Outlets, Commercial

Modular outlets that plug into existing outlets and are programmable to minimize equipment operation and "vampire loads" when plug load is not in use, and reports energy use to a computer or smartphone.

TAG Technical Score: 3.22

Energy Savings: 26%

Regional Potential: 0.28 MWh/year

ID: 468

LED High-Bay with Wireless Control

High-bay LED fixtures with a wireless occupancy control system.

TAG Technical Score: 3.2

Energy Savings: 74%

Regional Potential: 2.37 MWh/year

ID: 279

LED Commercial Office Lighting (2 ft x 2 ft troffer)

Open area recessed, suspended or surface-mounted fixtures for office lighting, typically in place of fluorescent troffers.

TAG Technical Score: 3.06

Energy Savings: 25%

Regional Potential: 0.11 MWh/year

ID: 401

Low-Cost Energy Management and Control System for Small to Medium Commercial Buildings

Affordable and cost-effective monitoring and controls solutions for small- to medium-sized commercial buildings.

TAG Technical Score: 3.02

Energy Savings: 10%

Regional Potential: 0.73 MWh/year

ID: 347

High-Efficiency UPS Equipment for a Data Center

Installing new, more efficient UPS units as a direct replacement to reduce losses and save energy.

TAG Technical Score: 3.0

Energy Savings: 3%

ID: 488

Lighting Controls for Outdoor Lighting

Advanced control systems with dimmable sources to adjust the amount of light for the presence of people, time of day, season and weather conditions and significantly reduce energy use.

TAG Technical Score: 2.98

Energy Savings: 40%

Regional Potential: 0.27 MWh/year

ID: 225

Adaptive Power Management for IT Equipment

Taking advantage of power management capabilities in servers and other IT equipment to be able to shut them down or lower the power consumption when not in use.

TAG Technical Score: 2.92

Energy Savings: 20%

ID: 508

Daylight Redirecting Window Film

Window film on exterior windowpanes that redirects daylight upward towards the ceiling with minimal glare to occupants, using a diffusing film on the interior pane as needed (3M).

TAG Technical Score: 2.9

Energy Savings: 16%

Regional Potential: 0.01 MWh/year

ID: 513

Direct Server Cabinet Cooling

A special cabinet that encases servers so only the servers are cooled, not the entire server room.

TAG Technical Score: 2.62

Energy Savings: 15%

Regional Potential: 0.53 MWh/year

ID: 68

Indirect-Direct Stand Alone Evaporative Cooler

A device that employs both indirect and direct evaporative cooling instead of using the vapor-compression/refrigeration cycle. This maximizes evaporative cooling while increasing humidity less than direct evaporative cooling alone.

TAG Technical Score: 2.4

Energy Savings: 30%

Regional Potential: 0.37 MWh/year

ID: 23

Building Energy Performance Analytics Software and Services

Software packages and services that analyze energy and performance data for fault diagnosis as well as optimizing system performance. They also establish a baseline and calculate savings based on the baseline.

TAG Technical Score: 2.34

Energy Savings: 10%

Regional Potential: 1.11 MWh/year

ID: 353

SAN (Storage Area Network) and LAN (Local Area Network) Convergence

A data center network system that reduces the number and size of distributed rack-based switching hardware and services into smaller, higher bandwidth machines with associated consolidated cabling systems.

TAG Technical Score: 2.14

Energy Savings: 56%

ID: 509

"Green Pumps" Program: Refurbishing Pumps to Improve Energy Efficiency

A program for refurbishing old, large pumps to increase efficiency.

TAG Technical Score:

Energy Savings: 7%

Regional Potential: 0.44 MWh/year

ID: 430

Active Chilled Beam Heating and Cooling

A heating and cooling system that draws room air past hot or cold water heat exchangers and provides conditioned air and necessary ventilation air into the space.

TAG Technical Score:

Energy Savings: 20%

Regional Potential: 0.44 MWh/year

ID: 316

Add motorized dampers to envelope duct penetrations

Motorized dampers that close automatically when an HVAC fan is turned off, saving energy by reducing infiltration.

TAG Technical Score:

Energy Savings: 10%

Regional Potential: 0.64 MWh/year

ID: 426

Advanced Commercial Refrigeration System Controller

A device utilizing advanced control strategies, including adaptive mechanisms, to optimize commercial refrigeration system operation and reduce energy consumption.

TAG Technical Score:

Energy Savings: 17%

ID: 4

Advanced Design Rooftop Unit

These retrofit units offer improved energy performance over typical existing "commercial" rooftop units by enhancing the performance of individual components and configurations, including fans, coils, filters, dampers, compressors, condensers, controls, and airflow path.

TAG Technical Score:

Energy Savings: 60%

Regional Potential: 1.93 MWh/year

ID: 246

Advanced Energy Information Systems

By integrating EMCS with web-based data from smart meters and submeters, energy performance can be tracked in real time and thus optimized.

TAG Technical Score:

Energy Savings: 8%

ID: 377

Advanced Lighting Control Systems

Advanced lighting control systems, either with wireless sensors, or with luminaire integrated lighting controls, provide occupancy-sensor and light-level control plus energy metering.

TAG Technical Score:

Energy Savings: 50%

Regional Potential: 6.35 MWh/year

ID: 117

Advanced Rooftop Unit Controls (ARC) Retrofit

Controllers to retrofit existing rooftop units to optimize performance by providing remote energy monitoring and control as well as variable speed drives, demand-controlled ventilation, and other features.

TAG Technical Score:

Energy Savings: 45%

Regional Potential: 2.14 MWh/year

ID: 338

Air Curtains at Building Openings

A thin curtain of conditioned air blown down just inside of exterior doors that keeps outside air from blowing into commercial buildings when doors are open.

TAG Technical Score:

Energy Savings: 4%

Regional Potential: 0.03 MWh/year

ID: 427

Air Flow Management for Data Centers

A collection of techniques and strategies that direct supply air to the servers at a rate needed for server performance while minimizing airflow energy costs.

TAG Technical Score:

Energy Savings: 30%

Regional Potential: 1.06 MWh/year

ID: 376

Air-Side Economizer for Data Centers

Using up to 100% outside air cooling capability in a data center to provide "free" cooling in an application where outside air would otherwise be provided only to satisfy minimum ventilation requirements.

TAG Technical Score:

Energy Savings: 25%

Regional Potential: 0.88 MWh/year

ID: 119

Automatic Dimming or Daylighting Controls

A lighting control that will either continuously dim, turn off, or bi-level step operate electric lighting in response to daylight entering the space.

TAG Technical Score:

Energy Savings: 33%

Regional Potential: 0.80 MWh/year

ID: 144

Centrifugal Chiller Compressors with Magnetic Bearings and Variable Speed Control

Refrigerant compressors that use magnetic bearings in lieu of lubricated mechanical bearings. They feature an oil-free design, with an integral super-premium efficiency permanent magnet motor for speed control and soft starting capability.

TAG Technical Score:

Energy Savings: 30%

Regional Potential: 4.46 MWh/year

ID: 109

Cloud Computing

Utilizing cloud services for computer processing and storage needs for appropriate applications.

TAG Technical Score:

Energy Savings: 50%

ID: 490

Commercial CO2 Washing Machines

Washing machines that use liquid CO2 at 700 PSI, which has lower viscosity and surface tension, using no water and half the energy with a payback of 2-4 years.

TAG Technical Score:

Energy Savings: 64%

Regional Potential: 0.09 MWh/year

ID: 512

Commercial Heat Pump Water Heaters

Remove heat from the immediate or outside atmosphere and transfer it to the water tank.

TAG Technical Score:

Energy Savings: 50%

ID: 40

Commercial/ Industrial CO2 Heat Pumps

Air- or water-source heat pumps that use CO2 as a refrigerant and can produce hot air or hot water while simultaneously generating chilled water or air.

TAG Technical Score:

Energy Savings: 70%

Regional Potential: 2.66 MWh/year

ID: 293

Copper Rotor Motors

Motors up to 20 horsepower with lower resistance losses in their copper rotor conductor bars, resulting in higher efficiency.

TAG Technical Score:

Energy Savings: 1%

Regional Potential: 0.06 MWh/year

ID: 432

Dashboard Systems and Continuous Monitoring-Based Commissioning

Monitoring-based commissioning (MBCx) utilizes monitoring of remote metering to continuously commission building systems to identify previously unrecognized system inefficiencies.

TAG Technical Score:

Energy Savings: 10%

ID: 272

Dedicated Outside Air System (DOAS) for VAV HVAC systems

An outside air ventilation system that is separate from the central air handling and distribution system.

TAG Technical Score:

Energy Savings: 10%

ID: 248

Demand-Controlled Ventilation

Ventilation in commercial buildings controlled by occupancy sensors – usually CO2 monitors – to provide just the required amount of outside air and to avoid over- or under-ventilating a space.

TAG Technical Score:

Energy Savings: 10%

Regional Potential: 1.95 MWh/year

ID: 166

Demand-Controlled Ventilation for Commercial Kitchens

A system for commercial kitchen exhaust fans that uses smoke and heat sensors to control the exhaust hood airflow and make-up air volume based on cooking activities.

TAG Technical Score:

Energy Savings: 57%

Regional Potential: 0.68 MWh/year

ID: 155

Desiccant Dehumidifiers for Grocery & Cold Storage

A solid desiccant dehumidifier integrated with the HVAC system that can maintain the humidity level inside a building in the range of 30% to 40%.

TAG Technical Score:

Energy Savings: 25%

Regional Potential: 0.26 MWh/year

ID: 313

Desiccant-Enhanced Hybrid Evaporative Air Pre-Cooler

Combining the basic indirect evaporative cooler with a desiccant pre-stage allows for evaporative coolers to operate efficiently under higher-humidity conditions than would be normally possible.

TAG Technical Score:

Energy Savings: 25%

Regional Potential: 0.20 MWh/year

ID: 49

Diamond Coated Centrifugal Pump Mechanical Seals

Ultra-hard, low-friction surface coating made of synthetic diamond material used to seal pumps used in particularly harsh environments, improving friction losses by roughly 75%.

TAG Technical Score:

Energy Savings: 1%

ID: 22

Displacement Ventilation

An air distribution system which supplies low velocity air, typically at floor level. Supplied air rises slowly and is extracted from the ceiling, as opposed to intentionally mixing the air.

TAG Technical Score:

Energy Savings: 25%

Regional Potential: 0.24 MWh/year

ID: 18

Ductless Mini-Split Heat Pump for Small Commercial Applications

Ductless mini-split heat pump employing variable refrigerant flow technology without simultaneous heating and cooling, and up to eight zones to be used for small commercial applications. Features of this technology include: 1. A single outdoor unit that provides non-simul...

TAG Technical Score:

Energy Savings: 38%

Regional Potential: 0.24 MWh/year

ID: 276

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