The Value of DOD Installation Energy Management Control Systems (EMCS) and Command Centers for Improved Operations and Increased Energy Efficiency

Moderator: Mark Duszynski, VP Johnson Controls Federal Systems

7 Aug. 2012

Significant improvements in energy efficiency are occurring at selected DOD installations through the effective

integration of EMCS

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• Innovative installation energy managers are applying the technology of sophisticated controls networks to drive down energy consumption and utility costs

• The ability to create “command and control” of critical installation infrastructure (power production, HVAC systems control, water systems, SCADA, etc.) is improving operations and clearly strengthening the support of the missions based at these locations

• The opportunity exists to extend these professional practices to more locations throughout DOD

• Most of the capital expense of installing new, or modernizing existing, EMCSs to the levels of capability needed to affect these energy efficiency improvements is recovered through reduced utility bills in less than three years

In this session we have the opportunity to hear about the best practices and master plans from two successful installation energy managers.

Our hope is that hearing these success stories will compel you to implement similar projects at your locations, or develop the policies that support such efforts.

Energy Monitoring and Control System (EMCS) Network Integration Diagram

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EMCS Command Center – Typical Operator Screens Mainside

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EMCS Command CenterInstallation Sector

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EMCS Command CenterSingle Building Control

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EMCS Command CenterAir Handling System Control

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EMCS Command CenterChiller Plant Control

There are many ways the effective integration of EMCS improves energy efficiency

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• Better demand and load control means… less energy use overall which means… less total energy needed

• EMCS provides the tools to allow engineers to optimally match supply to actual demand in real time

• Accurate programming of individual loads leads to increased energy conservation

• Energy management systems generally employ less intrusive, and more selective control measures (e.g. raise setpoints a couple degrees rather than shutting off AC completely)

• Helps protect mission-critical operations while reducing demand from less important loads

• Can serve as a backup for microgrid controllers

Demand control of large loads (HVAC, lighting, chilled water, etc.) and modernized operations save energy $$

• 45% of total building energy use from HVAC equipment1

• Chilled-water systems realizing significant energy savings from technologies already introduced

Variable speed (compressors, pumps, fans) Magnetic bearings – high efficiency chillers ECM and PM motors Central Plant Optimization (CPO)

• New technologies expected to drive further reductions

Chilled beam w/DOAS (dedicated outside air system) … 14%2

Simultaneous heating/cooling chiller/heat pump … 15%3

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DOAS

Chilled Beam

Package Unit

Heat Pumps

Note: 1) US commercial building stock at 90.1-20042) Applies to chiller portion of building stock3) Applies to air-cooled chiller portion of building stock

Chiller

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Benefits of Energy Management and Control Systems

• Energy savings ~15% (of HVAC)• Incremental hardware & software

Sensors - CO2, occupancy, photo, metering, etc. Advanced controls – energy efficiency,

analytics, ADR, monitoring, reporting, etc. Connectivity (between devices and across

buildings) Cloud based applications (future)

• Pervasive connectivity … ~10% additional savings Enterprise integration, smart grid, renewables,

energy storage, etc.

Sources: 1) Building Energy Management Systems 2) Pike Research, 4Q10; other sources

Smart electrical

distribution

Smart equipme

nt

Smart security

components

Existing BAS

Connectivity

Applications

Integratedcloud-basedarchitecture

2010 2015 2020 2025 20300.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

6.7

4.3

2011

kBTU/ft2

31.7Total HVAC energy use

31.7

Total

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Projected energy savings through the modernization of EMCS at DOD installations

EMCS I

Pervasive Connectivity

EMCS II

Integrating HVAC, security, fire and lighting sub-systems

Advanced energy management controls with monitoring, analytics, ADR

Enterprise integration of individual EMCS

Building Energy Management Control Systems

Pervasive Connectivity

Frequ

en

cy (

Hz)