High Efficiency Office: Low Ambient/ Task Lighting Pilot Project

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Small Office (“Encon” Building) Site Report High Efficiency Office: Low Ambient/ Task Lighting Pilot Project HMG Project No: 0515r PG&E ET project #0820 Date: September 30, 2009 Submitted to: Daryl DeJean, Project Manager, Pacific Gas and Electric Company Client: Thor Scordelis, Sr. Program Manager, Pacific Gas and Electric Company Submitted by: HESCHONG MAHONE GROUP, INC. 11626 Fair Oaks Blvd. #302 Fair Oaks, CA 95628 Phone:(916) 962-7001 Fax: (916) 962-0101 e-mail: owen.howlett@h-m-g.com website: www. h-m-g.com
TABLE OF CONTENTS Heschong Mahone Group, Inc. Pacific Gas and Electric Company Emerging Technology Low Ambient/Task Lighting Pilots 1. EXECUTIVE SUMMARY................................ ................................ ........................ 1 2. DESCRIPTION OF SPACE ................................ ................................ ...................... 3 2.1 Daylighting................................ ................................ ................................ ....5 3. EXISTING LIGHTING AND CONTROLS................................ ............................... 7 3.1 Illuminance Levels in Task Areas................................ ................................ ...9 4. LOW AMBIENT/TASK LIGHTING DESIGN ................................ ....................... 10 4.1 Illuminance Levels in Task Areas................................ ................................ .12 5. STUDY METHODOLOGY ................................ ................................ .................... 14 6. COMPARISON OF BEFORE AND AFTER RETROFIT................................ ........14 6.1 Occupant Satisfaction................................ ................................ ................... 14 6.2 Energy Use................................ ................................ ................................ ...17 6.3 Peak Demand................................ ................................ ............................... 19 7. COST-EFFECTIVENESS ................................ ................................ ....................... 20 8. CONCLUSIONS................................ ................................ ................................ .....20 9. APPENDIX A—LUMINANCE MAPS FOR THE ENCON BUILDING ................ 21 APPENDIX B—LOGGING EQUIPMENT................................ ................................ ...23 HOBO Light Level Loggers................................ ................................ ............... 23 Onset Current Transformers................................ ................................ ............... 24 APPENDIX C—LIGHTING EQUIPMENT................................ ................................ ..24 APPENDIX D—DETAILS OF COST-EFFECTIVENESS CALCULATIONS.............25 Equipment and Labor Costs ................................ ................................ ............... 26 Incremental Costs............................................................................................26 Avoided Costs..................................................................................................26 Baseline Title 24 Compliant System................................ ................................ ...27 i
Page 1: Pacific Gas and Electric Company Em
Page 5 and 6: Heschong Mahone Group, Inc. Pacific
Page 11 and 12: 20 18 16 14 12 10 8 6 4 2 0 Heschon
Page 15 and 16: 4. LOW AMBIENT/TASK LIGHTING DESIGN
Page 19 and 20: 5. STUDY METHODOLOGY Heschong Mahon
Page 23 and 24: 0.45 0.40 0.35 0.30 0.25 0.20 0.15
Page 25 and 26: 7. COST-EFFECTIVENESS Heschong Maho
Page 29 and 30: Onset Current Transformers Size - (
Page 31 and 32: Equipment and Labor Costs Heschong

High Efficiency Office: Low Ambient/ Task Lighting Pilot Project

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