Transcript Document
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 • 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. 3 Energy Monitoring and Control System (EMCS) Network Integration Diagram 4 5 EMCS Command Center – Typical Operator Screens Mainside 6 EMCS Command Center Installation Sector 7 EMCS Command Center Single Building Control 8 EMCS Command Center Air Handling System Control 9 EMCS Command Center Chiller Plant Control 10 There are many ways the effective integration of EMCS improves energy efficiency • 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 11 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) Chiller Heat Pumps • New technologies expected to drive further reductions Package Unit DOAS Chilled beam w/DOAS (dedicated outside air system) … 14%2 Simultaneous heating/cooling chiller/heat pump … 15%3 Chilled Beam 12 Note: 1) US commercial building stock at 90.1-2004 2) Applies to chiller portion of building stock 3) Applies to air-cooled chiller portion of building stock Benefits of Energy Management and Control Systems • Energy savings ~15% (of HVAC) • Incremental hardware & software Connectivity 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) Applications • Pervasive connectivity … ~10% additional savings Enterprise integration, smart grid, renewables, energy storage, etc. Integrated cloud-based architecture Existing BAS 13 Smart equipme nt Smart electrical distribution Smart security component s Sources: 1) Building Energy Management Systems 2) Pike Research, 4Q10; other sources Projected energy savings through the modernization of EMCS at DOD installations 31.7 Total HVAC energy use 31.7 8.0 7.0 6.7 Total 6.0 Pervasive Connectivity 5.0 4.3 kBTU/ft2 4.0 Building Energy Management Control Systems 3.0 2.0 1.0 0.0 2010 2011 2015 2020 2025 2030 EMCS I Frequency (Hz) Integrating HVAC, security, fire and lighting sub-systems EMCS II Advanced energy management controls with monitoring, analytics, ADR Pervasive Connectivity 14 Enterprise integration of individual EMCS