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    1

    Massachusetts Multifamily High Rise Baseline Study-FINAL REPORT

    March 24, 2017

    SUBMITTED TO: The Massachusetts Electric and Gas Program Administrators

    SUBMITTED BY: NMR Group, Inc., Dorothy Conant, and DNV-GL

  • MASSACHUSETTS MULTIFAMILY HIGH RISE BASELINE-FINAL

    Table of Contents EXECUTIVE SUMMARY .............................................................................................................. I

    FINAL UDRH INPUTS ............................................................................................................. ISAMPLE PROJECTS AND DATA ............................................................................................ IVRECRUITING ....................................................................................................................... IVON-SITE INSPECTIONS AND PLAN REVIEWS .......................................................................... VRELATIVE PRECISION OF RESULTS ....................................................................................... VMEASURE-LEVEL FINDINGS ................................................................................................ VIRECOMMENDATIONS AND CONSIDERATIONS ........................................................................ IX

    SECTION 1 INTRODUCTION ............................................................................................... 11.1 BACKGROUND AND STUDY GOAL ............................................................................... 1

    1.1.1 Study Goal .......................................................................................................... 11.2 SAMPLING PLAN ........................................................................................................ 1

    1.2.1 Final Sample ....................................................................................................... 21.2.2 Sample to Market Comparison ........................................................................... 21.2.3 Data and Analysis ............................................................................................... 61.2.4 Precision ............................................................................................................. 6

    1.3 DRY RUN INSPECTIONS ............................................................................................. 8SECTION 2 RECRUITMENT AND SCHEDULING .................................................................... 9

    2.1 IDENTIFYING SAMPLE ................................................................................................. 92.2 BARRIERS TO RECRUITMENT .................................................................................... 102.3 RECRUITMENT STRATEGIES ..................................................................................... 10

    2.3.1 Program Participant Recruitment ...................................................................... 102.3.2 Non-Participant Recruitment ............................................................................. 112.3.3 Building Department Visits and Mystery Shopping ........................................... 11

    SECTION 3 ON-SITE DATA COLLECTION AND PLAN REVIEW ............................................ 133.1 ON-SITE DATA COLLECTION ..................................................................................... 13

    3.1.1 Walk-through with Building Manager ................................................................ 133.1.2 In-Unit Inspections ............................................................................................ 133.1.3 Plan Review ...................................................................................................... 133.1.4 Data Quality and Sample Sizes ........................................................................ 14

    SECTION 4 COMPARISON TO CURRENT PROGRAM MODEL INPUTS .................................. 15SECTION 5 BUILDING ENVELOPE .................................................................................... 24

  • MASSACHUSETTS MULTIFAMILY HIGH RISE BASELINE-FINAL

    5.1 WALL INSULATION ................................................................................................... 245.2 ROOF INSULATION ................................................................................................... 265.3 FRAME FLOOR INSULATION ...................................................................................... 275.4 SLAB INSULATION .................................................................................................... 285.5 FOUNDATION WALL INSULATION ............................................................................... 285.6 GLAZING EFFICIENCY .............................................................................................. 28

    SECTION 6 MECHANICAL EQUIPMENT ............................................................................. 306.1 HEATING SYSTEM SUMMARY ................................................................................... 30

    6.1.1 Whole Building Heating Systems ...................................................................... 306.1.2 In-Unit Heating Systems ................................................................................... 32

    6.2 COOLING SYSTEM SUMMARY ................................................................................... 326.2.1 Whole-Building Cooling Systems ...................................................................... 336.2.2 In-Unit Cooling Systems ................................................................................... 34

    6.3 WATER HEATING SUMMARY ..................................................................................... 356.3.1 Whole-Building Water Heating Systems ........................................................... 356.3.2 In-Unit Water Heating Systems ......................................................................... 36

    SECTION 7 VENTILATION ................................................................................................ 37SECTION 8 MOTORS AND DRIVES ................................................................................... 38

    8.1 ELECTRONICALLY COMMUTATED MOTORS ............................................................... 388.2 VARIABLE FREQUENCY DRIVES ................................................................................ 38

    SECTION 9 APPLIANCES AND WATER FIXTURES ............................................................. 399.1 APPLIANCES ............................................................................................................ 399.2 WATER FIXTURES .................................................................................................... 42

    SECTION 10 LIGHTING ..................................................................................................... 4510.1 IN-UNIT LIGHTING .................................................................................................... 4610.2 COMMON AREA LIGHTING ........................................................................................ 48

    10.2.1 Lobby Elevator .................................................................................................. 5110.2.2 Office ................................................................................................................. 5210.2.3 Fitness .............................................................................................................. 5310.2.4 Lounge Clubhouse ............................................................................................ 5410.2.5 Storage ............................................................................................................. 5510.2.6 Corridors ........................................................................................................... 5610.2.7 Stairwells ........................................................................................................... 57

  • MASSACHUSETTS MULTIFAMILY HIGH RISE BASELINE-FINAL

    10.2.8 Mechanical/Utility Room ................................................................................... 5810.2.9 Meeting Rooms ................................................................................................. 5910.2.10 Garage ......................................................................................................... 60

    Figures FIGURE 1: PERCENT OF PROJECTS AND UNITS BY PROJECT STORY CATEGORY ....................... 3FIGURE 2: PERCENT OF PROJECTS BY PROJECT SIZE CATEGORY ............................................ 4FIGURE 3: PERCENT OF UNITS BY PROJECT SIZE CATEGORY ................................................... 4FIGURE 4: WHOLE BUILDING PATH ( 10 STORIES) ENROLLED AND STUDY BUILDINGS ............. 5FIGURE 5: IN-UNIT ONLY PATH ( 11 STORIES) ENROLLED AND STUDY BUILDINGS ................... 5FIGURE 6: PERCENT OF TOTAL BULBS/FIXTURES ................................................................... 46FIGURE 7: PERCENT OF TOTAL WATTS .................................................................................. 46FIGURE 8: RAW AND AREA WEIGHTED AVERAGE WATTS PER SQUARE FOOT ......................... 47FIGURE 9: WATTS PER SQUARE FOOT OF LAMPED AREA BY PROJECT ................................... 47FIGURE 10: COMMON AREA PERCENT OF TOTAL BULBS/FIXTURES ........................................ 49FIGURE 11: COMMON AREAS PERCENT OF TOTAL WATTS ...................................................... 49FIGURE 12: LOBBY ELEVATOR AREA WATTS PER SQUARE FOOT ........................................... 51FIGURE 13: OFFICE AREA WATTS PER SQUARE FOOT ............................................................ 52FIGURE 14: FITNESS AREA WATTS PER SQUARE FOOT ....................

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