Metering and Energy Retrofits for the GSA

Transcription

1 Metering and Energy Retrofits for the GSA 2012 Rocky Mountain Chapter ASHRAE Technical Conference Leadership in HVAC&R April 20 th, 2012 Juan Moreno and Christian Marsh-Frydenlund 1 1

2 Agenda Project Overview Activities in GSA Region 6 Metering - Goodfellow Case Study Retro-commissioning - Whittaker Case Study 2 2

3 Project Overview Location: Heartland Region Key drivers: Energy Policy Act of 2005 Install building level electrical metering by 2012 in all government buildings Energy Information and Security Act of 2007 Include natural gas, chilled water, steam, domestic water Executive Order of 2007 ARRA 2009 select facilities and solutions 3 3

4 Project Overview Key solutions: Energy Metering EMCS Upgrades Retro-commissioning Energy Tracking Energy Conservation Building EMCS Access 4 4

5 Activities in Region 6 Facility Name Location Metering and EMCS Upgrades Bannister Federal Complex Kansas City, MO Federal Records Center Page St. Louis, MO 2306 Bannister Kansas City, MO 2312 Bannister Kansas City, MO Carlson Federal Building and U.S. Courthouse Topeka, KS Davenport U.S. Courthouse and Federal Building Davenport, IA Zorinsky Federal Building Omaha, NE Denney Federal Building Lincoln, NE Whittaker Courthouse Kansas City, MO Goodfellow Federal Center St. Louis, MO Eagleton Courthouse St. Louis, MO North Platte Federal Building, U.S. Post Office and Courthouse RCx ARRA North Platte, NE U.S. Army Publications Center Overland, MO 5 5

6 EMCS / Metering Evaluate 35 building in GSA Region 6 EMCS upgrade to web-based solutions Building level metering of utilities Utility Data hosted to server in Washington D.C. Design/ Build Solution for Selected Sites 6 6

7 Metering Goodfellow Case Study The Goodfellow Federal Center is a suburban office park situated on a 62.5 acre, 23 building campus in St. Louis, Missouri. The buildings that now comprise the Federal Center were built in 1941 by the DoD and were utilized as an Army Small Arms Munitions Plant to support the World War II effort. On July 1, 1966, the ownership and operation of the complex was transferred from the Army to GSA. After this time, GSA renovated the complex into a suburban office park. 7 7

8 Metering Goodfellow Case Study Goodfellow Federal Campus, St. Louis, MO 21 of 23 buildings included Upgrade existing EMCS to modern, web based Ethernet solution Install Fiber Optic Campus Network Install Electric (25), Gas (7), Domestic Water (2) Meters Fiber network for metering $766,596 Base price (Goodfellow) $1,459,950 Total Price for Goodfellow, APC, Whittaker 8 8

9 Metering Goodfellow Case Study 9 9

10 Metering Goodfellow Case Study Goodfellow Federal Campus Install Electric (25), Gas (7), Domestic Water (2) Meters Insertion gas and water meters Electric Meters Single mode fiber used for distances over 750 feet Multimode fiber used under 750 feet Cat5e Ethernet wire used for distances under 300 feet 10 10

11 Metering Goodfellow Case Study Goodfellow Federal Campus Typical Electrical Vault 11 11

12 Metering Goodfellow Case Study 12 12

13 Metering Goodfellow Case Study Goodfellow Federal Campus, St. Louis, MO Status of Project Today Fiber backbone installed and tested Meters installed, commissioned and communicating over new network EMCS network controllers installed and communicating over new fiber network Metering and EMCS data points being mapped into new custom graphics Coordination with server in Washington D.C. underway 13 13

14 RCx Whittaker Courthouse Case Study Kansas City, MO 754,000 SF Federal courthouse and office 52 VAV AHUs 2 Steam-HW HX 1 low load chiller -250 tons 2 high load chillers 750 tons each Hybrid pneumatic to electronic DDC system no trending 14 14

15 RCx Whittaker Courthouse ECMs Utility Savings Cost Savings Measure No. Measure Description Electrical Demand (Avg kw/mo.) Electrical Energy (kwh/yr) Steam Energy (Mlbs/ yr) Water Use (kgal/yr) Energy (MMBtu/ yr) Total Cost Savings ($/yr) Implementation Cost ($) SIR Simple Payback (years) ECM-1 ECM-2 ECM-3 ECM-4 ECM-5 Repair Economizer Damper Operation for Select AHUs Optimize Lighting Schedules for Common Area and Exterior Lighting Optimize AHU Temperature Control and Runtime Add Variable Speed Drives to Cooling Tower Fans Implement Waterside Economizer Capability 10 11, $ 1,700 $ 5, , $ 941 $ 1, ,281 6, $ 70,137 $ 32, , $ 19,604 $ 56, , $ 26,041 $ 150, ECM-6 Install Synchronous Belts on Select AHUs 4 11, $ 846 $ 26, ECM-7 ECM-8 Abandon Steam Humidification Systems for AHUs that Do Not Serve Courtrooms Install Fluid Cooler To Cool Heat Exchanger Condensate $ 5,805 $ (1) (1,710) (0.01) $ 5,676 $ 27, Totals - All ECM Measures: 162 1,342,241 7, $ 130,750 $ 300,

16 RCx O&M Enhancements ECM-1 Inspecting/repairing economizer dampers and linkages Inspecting/repairing E/P transducer diaphragms for mixed air damper control Include these steps to annual PM program 16 16

17 RCx Low Lying Fruit Controls ECM-2 and ECM-3 Programming new lighting control schedules Optimizing AHU control temperatures and schedules 17 17

18 RCx Capital Intensive Solutions ECM-4 through ECM-6 Enhancing chilled water plant control through installation of VFDs on the cooling tower fans and implementing water side economizer Enhancing fan motor efficiency through synchronous belt installation 18 18

19 RCx Hidden Fruit Retrofits ECM-7 and ECM-8 Abandon Steam Humidification Systems for Non- Critical Zones Install Fluid Cooler for Treatment of HX Condensate 19 19

20 RCx Whittaker Wrap Up RCx serves as a key solution for achieving energy and water reduction goals O&M Enhancements Low Lying Fruit Control Optimization Capital Intensive Solutions Hidden Fruit Energy and Water Conservation Retrofits 20 20

21 Questions? Christian Marsh-Frydenlund Juan M. Moreno 21 21