Codes and Standards Initiative Sponsors

Transcription

1 Codes and Standards Initiative Sponsors 1

2 Who is Mass Save? Mass Save is an initiative sponsored by Massachusetts gas and electric utilities and energy efficiency service providers, including Columbia Gas of Massachusetts, The Berkshire Gas Company, Cape Light Compact, Eversource Energy, National Grid, Liberty Utilities, and Unitil. The Sponsors of Mass Save work closely with the Massachusetts Department of Energy Resources to provide a wide range of services, incentives, trainings, and information promoting energy efficiency that help residents and businesses manage energy use and related costs. 2

3 Residential New Construction Offers Low-Rise New Construction Performance Path based upon a % improvement over the MA baseline Prescriptive Path incentives for measures beyond MA baseline High-Rise New Construction Incentives based upon actual measures Please visit for the details on all available incentives. 3

4 Commercial New Construction Offers Incentives for efficiency levels beyond code: Whole building incentives System incentives including Air Compressors Chillers Lighting and Lighting Controls Gas-Fired Heating Equipment Variable Speed Drives Custom Measures And more We also offer incentives and rebates for existing buildings as well. Please visit for the details. 4

5 Massachusetts Energy Code Technical Support Initiative Commercial Energy Code Lighting, Lighting Control & Electrical Provisions These materials 2014 Conservation Services Group, Inc. all rights reserved. - Unauthorized access or use is strictly prohibited. 5

6 AIA Continuing Education CLEAResult is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion for non- AIA members are available on request. This program is registered with the AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation. 6

7 Disclosure These trainings are being offered through the support of Mass Save and in cooperation with the Massachusetts Board of Building Regulations and Standards (BBRS). The Energy Code Technical Support staff, consisting of CLEAResult and other contractors, are not code officials, and the information provided through the program is not a formal interpretation of the code. Your local building code official is responsible for the enforcement of the code and the Massachusetts BBRS is the governing body responsible for interpretations of the code. 7

8 Mass Save Energy Code Technical Support Project Specific Code Assistance MA code officials Design professionals Contractors Sub contractors Material suppliers Toll-free energy code support Phone assistance Office visits Project site visits 8

9 Learning Objectives To become familiar with the electric and lighting provisions of the 2012 Massachusetts Energy Conservation Code 9

10 Agenda Introductions Scope and Application Interior Lighting Power Density Lighting Controls Exterior Lighting Lighting Power Density Lighting Controls Additional Efficiency Packages Compliance 10

11 Energy Savings 45% 30% 35 40% 15% 0%

12 Code Reference Materials 12

13 Scope and Application 13

14 Commercial Compliance Commercial Compliance Prescriptive IECC ASHRAE Scope and application Envelope HVAC Lighting Service Water Heating Alternative Options Interior Exterior Controls 14

15 R Mixed Occupancy If both residential and commercial uses are present, each occupancy shall be separately considered and meet the applicable IECC provisions Residential = 2012 IECC Residential Commercial = 2012 IECC Commercial 15

16 2012 IECC versus 2010 ASHRAE 90.1 Higher (less stringent) lighting power density Lighting controls required for different spaces Manual controls allowed for daylight zones No parking garage lighting controls No room geometry adjustment allowed Bi-level switching required Lower (more stringent) lighting power density Lighting controls required for different spaces Multilevel lighting controls always required for daylight zones Parking garage lighting controls Room geometry adjustment allowed for spaces 16

17 Additional Efficiency Package Options C406.1 NEW! Buildings following the prescriptive path shall comply with at least one of the following: 1. Efficient HVAC Performance Minimum Efficiency Requirements for Mechanical Equipment Tables C406.2 (1-7) 2. Efficient Lighting Systems Reduced LPD per Table C On-Site Renewable Energy Systems Provide for 1.75 Btu or 0.50 Watts per ft 2 of Conditioned Floor Area 4. For onsite use of biomass fuel, provided not less than 65 percent of the energy used within the building for space and service water heating using sealed combustion mechanical equipment rated at a minimum of 85 AFUE. The biomass shall meet the eligible fuel and emission criteria under M.C.L. c. 25A. 11 F (Massachusetts renewable energy portfolio standard). 17

18 Commercial Compliance Methods IECC 2012 & Massachusetts Amendments Prescriptive Checklists Software Based Compliance; COMcheck ASHRAE 90.1 Compliance Building Performance Methodology: Energy Cost Budget Method (Section11) C Compliance with a code official approved above code program/performance protocol 18

19 Stretch Code Commercial Compliance New Construction (0-4,999 sq. ft) New Construction (5, ,000 sq ft) New Construction (above 100,000 sq ft) Supermarket, Labs Warehouse(<40,000 sq ft) Supermarket, Labs Warehouse(>39,999 sq ft) Stretch Code Performance Option Stretch Code Prescriptive Option Not Subject to Stretch Code 20% below Section Prescriptive Path Base Code 2012 IECC plus MA amendments Not available 20% below Not available Not available Not Subject to Stretch Code 2012 IECC plus MA amendments 20% below Not available Not available Additions (>30% new floor area added to buildings >100,000 sq ft) 20% below Not available Not available Alterations and Repairs Not Subject to Stretch Code 2012 IECC plus MA amendments 19

20 Definitions: Residential & Commercial Buildings Residential Buildings: Detached One and Two- Family Dwellings Townhouses Residential Buildings 3 Stories or Less in Height Commercial Buildings: All Buildings not Defined as Residential Commercial Industrial Residential 4 Stories or More in Height Source: Shutterstock 20

21 Additions C Additions alone shall comply with the code (additions include any building systems added) Or; the entire building including the addition shall comply Exemption Storm windows installed over existing fenestrations 21

22 Alterations, Renovations & Repairs C Alterations, Renovations & Repairs Must conform As they relate to new construction Renovated, or altered components, portions, and systems must comply Repairs that relate to new construction Exceptions Unaltered portions of an existing building or building system Replacing less than 50% of the light fixtures in a space Replacing the lamps and ballasts in existing light fixtures without increasing energy use 22

23 Change in Occupancy or Use C If change in occupancy or use results in increased demand for fossil fuels or electricity, the space must comply with code Where the use in a space changes from one use in Table C (1) or (2) to another use in Table C (1) of (2), the installed lighting wattage shall comply with Section C405.5 > 23

24 Change in Space Conditioning C Unconditioned space that is converted to conditioned space must comply with code; including lighting > 24

25 Low Energy Buildings C102.1 Exempt from building envelope provisions: Buildings with a design rate of energy usage less than 3.4 Btu/h (or 1.0 watt) per ft 2 for space heating Buildings that contain no conditioned space No commercial buildings are exempt from lighting and service water heating provisions Source: bridgelux 25

26 Alternate Materials & Methods C102.1 The Energy Conservation Code does not intend to prevent the use of alternate material and methods provided such materials and methods have been approved by code officials as meeting the intent of the code. Source: Hotel Galéria Spirit 26

27 Building Electrical and Lighting Provisions 28

28 Lighting System Impact Energy for Lighting in C&I Buildings Accounts for Approximately 30% of Energy Use in Commercial Buildings Non- Regulated Hot Water Lighting Heating, Cooling 29

29 Lighting System Scope Applies to the design of: First installed lighting systems Altered or repaired systems that replace 50% or more of the luminaires Alterations that increase the lighting power density in the space Exempt: Lighting within dwelling units provided 75% or More of the Hard-Wired Fixtures use High Efficacy Lamps (Fluorescent or LED) Source: Mark A Steele Photography Inc. 30

30 Intent of Lighting Requirements Reduce hours of operation with lighting control requirements: Automatic Manual Reduce lighting power density: 2012 Requirements are more strict & include exterior lighting Incorporate Daylighting Credit: Energy Resource Solutions 31

31 Interior Lighting Power 32

32 IECC 2012 Lighting Mandates For lighting alterations/retrofits <50%: only the altered lighting needs to be brought up to code. However, IF this change does not increase the lighting power, THEN there is no need to bring anything up to code. When >50% or more of the luminaires in a space are replaced, that entire space or building must meet IECC 2012 code LPD requirements

33 Interior Lighting Power C405.5 Lighting power allowance (LPA) Maximum allowed lighting power density (LPD) LPD Lighting Total Watts/Ft 2 of Area Two paths: Building Area Space-by-Space Fixture Rated Wattage X Qty Area (Ft 2 ) 34

34 Table - Interior Lighting Power Allowance Tables Example Area & Space Types BUILDING AREA METHOD SPACE BY SPACE METHOD Building Area Type LPD Common Space Types LPD Automotive Facility 0.9 Automotive Service 0.7 Convention center 1.2 Convention Exhibit Space 1.5 Courthouse 1.2 Judge Chambers 1.3 Gymnasium 1.1 Gymnasium Fitness Area 0.9 Office 0.9 Office Enclosed 1.1 Parking Garage 0.3 Parking Garage Garage Area 0.2 Retail 1.4 Retail Sales Area

35 Lighting Power Allowance Calculate the total interior lighting power (Watts) / total floor area of each building area type = Lighting Power Density (LPD) LPD must be equal to or less than the LPD for the building area type listed in the code table 36

36 Measuring Interior Area 12 exterior walls (typical) from interior surface of envelope walls Office 75 ft from center of partition walls 8 partition 200 ft Locker Room 125 ft 37

37 Allowed Lighting Power Open 1.0 W/ft 2 7,500 ft 2 x 1.0 W/ft 2 = 7,500 W Locker 0.8 W/ft 2 12,500 ft 2 x 0.8 W/ft 2 = 10,000 W 75 ft 125 ft 200 ft Total Allowed Interior Lighting Power = 17,500 W 38

38 Interior Lighting Power Total connected interior lighting power includes: Fluorescent fixture rated wattage Screw-in socket labeled max wattage Low voltage lighting transformer rating Track 30 Watts/Ft or circuit breaker rating Source: Glumac 39

39 Interior Lighting Power C405.5 Total connected interior lighting power; including all interior lighting equipment, except: Sports Lighting (Professional/TV) Sleeping Units (hotels, etc.) Emergency (only) Lighting Special Needs Lighting Other Special Categories Source: Lamar Lighting Source: ALG online 40

40 Lighting Power Density What is the wattage of a fluorescent fixture? Source: OSRAM SYLVANIA 41

41 Lighting Power Density What is the wattage of a fluorescent fixture? Ballast or Fixture Manufacturers Data for the Lamp Ballast Combination TRIAD B EL Line Voltage: 120V AC +/- 10% Lamps Type # INPUT WATTS AMPS F32T8/ES F32T8/ES F32T F32T

42 Case Study: MacColl YMCA Code LPD 1.0 W/SF Designed LPD 0.78 W/SF Reduction 22% Projected annual energy savings - $4,224 Source: Ryan Construction 43

43 Review Interior lighting power density Calculating the actual power density Calculating the interior power allowance Source: a light Incentive Opportunity: Incentives available for exceeding code LPD 44

44 Optional Lighting Techniques 45

45 Efficient Lighting Sources & Techniques High efficacy lamps Electronic and other efficient ballasts Efficient lighting fixtures Focus on high quality lighting design Use smart lighting layouts Source: Golub Corp 46

46 High Performance Super T8 Fluorescent Systems Improved ballast and T8 lamp 20% improvement in system efficacy Low and full wattage versions Extended lamp life up to 50,000 hours Newest versions promise 100,000 hour life Adds 0%-10 % to system cost compared to typical instant-start T8 47

47 T8/T5? The T represents lamp shape tubular. The number following represents lamp diameter in eighths of an inch. A T5 has a diameter of 5/8. A T5 has miniature bi-pin bases while T8 and T12 lamps use medium bi-pin bases. 48

48 LED Solid State Lighting 49

49 Advantages of LED Lighting Energy efficient; 60 >100 L/W Directional; light where its needed long lifetime; up to 50,000 70% lumen maintenance Instant on; no warm-up period Dimmable; stepped or continuous with compatible driver & dimming systems Start in all temperatures; outdoor & cold storage applications Very good color rendering (80+ CRI) 50

50 Current LED Lighting Applications 51

51 Install Efficient Fixtures Efficiency is not just lamps and ballasts Fixtures with advanced photometric design and premium reflective surfaces offer improved efficiency Premium efficiency fixtures often allow the installation of fewer fixtures and/or fixtures with fewer lamps 52

52 Install Efficient Fixtures Efficiency Ranges Recessed Troffers Recessed Parabolic Recessed Indirect Pendant Indirect & D/I Recessed CFL 60% - 85% Overall 45% - 75% Overall 50% - 80% Overall 70% - 95% Overall 35% - 65% Overall Incentive Opportunity: Incentives available for exceeding code LPD 53

53 Interior lighting Controls 54

54 Manual Interior Lighting Controls C Independent manual controls are required for each enclosed space Controls must be within the space or provided with an on/off indicator Exceptions Security of emergency areas Stairways and corridors (means of egress) 55

55 Manual or Automatic Lighting Reduction Controls C Each space that is required to have manual controls, must also include controls to reduce lighting load by at least 50%: Manual or auto-dimming Or; Bi-level switching Or; Dual switching of alternate rows of luminaires Or; Switching each luminaire or each lamp Source: Leviton Lighting Management Solutions 56

56 Manual or Automatic Lighting Reduction Controls - Exceptions Exceptions apply Spaces with occupancy sensing Areas with one fixture Spaces < 0.6 W/ft 2 Corridors; restrooms; lobbies Source: Lamar Lighting 57

57 Additional Lighting Controls C Each space that is required to have manual controls, must also include: Automatic timer systems with override And/or; occupancy/vacancy sensors And/or; daylight zone controls Source: WattStopper 58

58 Interior Lighting Controls Simple Guide for Compliance: Private offices, conference rooms, classrooms: Vacancy sensor Daylit? Dimming ballasts & manual or auto dimmer No Daylight? Multi-level lighting exception due to vacancy sensor Open office areas: Timer or occupancy sensor Daylit Zones? - Dimming ballasts & manual or auto dimmer Break Rooms, janitor closets, restrooms Occupancy or vacancy sensor General & public areas: Daylit? - Dimming ballasts, manual/auto dimmer & timer No Daylight? - timer 59

59 Occupancy & Vacancy Controls What s the Difference? Occupancy sensors: Turns lights on upon sensing occupancy Turn lights off when space is vacated Best for open spaces and/or spaces lacking ambient light Vacancy sensors (occupancy sensors with manual ON ): Turn lights off when space is vacated Lights must be turned on manually Best for private offices with some ambient light 60

60 Network Lighting Controls Network Lighting Controls incentive: NLC exceeds IECC 2012 code lighting control requirements. NLC goals are to obtain substantial lighting kwh savings by using the full capabilities of digitally programmed and networked lighting controls and sensors. Delivers refined lighting control management Zones can be easily adjusted and redefined by owner or occupant Includes graphic dashboard showing locations and savings Can tie into HVAC system & BMS 61

61 Network Lighting Controls Project Qualifications: >25,000 sq/ft or greater New construction, major renovation and retrofit projects are eligible Pre-Qualified Lighting Control Systems required. Controls system must achieve 40% kwh savings below IECC 2012 (ComCheck) Requires the involvement of qualified lighting or engineering professional -PE., Lighting Certified LC or IALD Specifiers to participate 63

62 Network Lighting Controls NBI has published a Technical Application Guide on Network Lighting Controls at: default/files/lllc_zne_ta G.pdf 64

63 Daylighting and Envelope Requirements 65

64 Daylight Zone Controls Daylight Zones: Under skylights equal to the size of the skylight plus the floor-to-ceiling height Or; the dimension to a partition Or; ½ the distance to another fenestration Source: Daylighting Pattern Guide 66

65 Daylight Zone Controls Daylight Zones: Vertical glazing area adjacent to the glazing and: Extending into the space 15 or to a partition Glazing width plus 2 on either side Or; ½ the distance to another fenestration Credit: NREL - Joe Ryan 67

66 Daylighting Zone Daylight zone adjacent to fenestration in a wall Credit: IECC 68

67 Daylighting Zone Daylight zone under a rooftop monitor Credit: IECC 69

68 Daylighting Zone Daylight zone under a sloped rooftop monitor Credit: IECC 70

69 Daylighting Zone Daylight zone under a roof fenestration assembly Credit: IECC 71

70 Daylight Zone Controls C Daylight zones must have their own (manual or automatic) control Each zone maximum 2,500 ft 2 Exception: enclosed areas with two or fewer light fixtures Manual or automatic Continuous or stepped (50-70% + 35%) 72

71 Multi-Level & Daylight Zone Controls C Daylight Zones in areas with multi-level switching: General lighting must be daylight responsive Must be capable of dimming to minimum of 35% of total lighting load Continuous or stepped Source: RP Leslie, R Raghavan, O Howlett and C Eaton, The potential of simplified concepts for daylight harvesting 73

72 Multi-Level Ballasts C Continuous 5%>100% Stepped Bi-Level 50%>100% 74

73 Example: Classroom Application: 28 X 30 windowed classroom with 10 ceiling Windows face north Lighting: Indirect/direct T8 pendant with 0-10VDC dimming ballasts for general lighting Whiteboard is illuminated by compact fluorescent wall washers with standard electronic ballasts Source: Joe Ryan/NREL 75

74 Example: Classroom Source: ALG online 76

75 Example: Classroom Source: ALG online 77

76 Vertical Fenestrations Maximum Area C Vertical fenestrations limited to 30% of total above grade wall area Previous code the limit was 40% Source: originalgreen.org 78

77 Vertical Fenestrations Maximum Area with Daylight Controls C Vertical fenestration allowance increases to 40% of total above grade wall area If; at least 50% of floor area is within a daylit zone And; automatic daylight controls are installed And; visible light transmittance is 1.1 times the SHGC 79

78 Skylights - Maximum Area C Skylights limited to 3% of gross roof area Or; limited to 5% if automatic daylight controls are installed below skylights Source: Daylighting Pattern Guide 80

79 Skylights - Minimum Area C NEW Required; minimum skylight area for some spaces: Enclosed spaces greater than 10,000 ft 2 Ceiling heights greater than 15 Offices, lobbies, atriums, concourse, corridors, storage, gyms, convention centers, auto service, manufacturing, non-refrigerated warehouses, retail, distribution, transportation, workshops Daylight zone 50% of the floor area % of skylight area to daylight zone 3% Or; provide a minimum aperture of 1% 81

80 Skylights - Minimum Area C NEW Exceptions: LPDs less than 0.5 W/ft 2 Areas where objects block the daylight Areas with daylighting monitors Source: Advanced Lighting Guidelines 82

81 Lighting Controls Under Skylights C NEW All lighting in Daylight Zones must be controlled by multi-level lighting controls as specified in the lighting section C NOTE: This is only applicable when skylights are required per section Source: Daylighting Pattern Guide 83

82 Source: BMG 84

83 OS Auto Daylighting Controls OS Auto Daylighting Controls OS OS OS OS OS OS S OS OS S Auto Daylighting Controls Source: BMG 85

84 Exterior Lighting 86

85 Exterior Lighting Controls C Exterior lighting designated for dusk to dawn operation Automatic photocell control Or; Automatic astronomical timer with a minimum 10-hour power back-up Other exterior lighting Automatic photocell control & timer Or; automatic astronomical timer with a minimum 10-hour power back-up Source: California Lighting Technology Center 87

86 Exterior Lighting Power C405.6 All Lamps Greater Than 100 Watts Must Have an Efficacy Rating of 60 Lumens per Watt or Greater Exterior Lighting Power Allowance is Calculated Utilizing Exterior Table Chart LPD Assigned by Area Zone & Type Exceptions for Sports, Industrial, Temporary Lighting, and other Specialized Lighting 88

87 Exterior Lighting Zones 1. Developed areas of national parks, state parks, forest land, and rural areas 2. Areas predominantly consisting of residential zoning, neighborhood business districts, light industrial with limited nighttime use and residential mixed use areas 3. All other areas 4. High-activity commercial districts in major metropolitan areas as designated by the local land use planning authority 89

88 Exterior Lighting Power C INDIVIDUAL LIGHTING POWER ALLOWANCES FOR BUILDING EXTERIORS (Partial) Tradable Surfaces (Lighting power densities for uncovered parking areas, building grounds, building entrances and exits, canopies and overhangs and outdoor sales areas may be traded.) Zone 1 Zone 2 Zone 3 Zone 4 Uncovered Parking Areas Parking areas and drives 0.04 W/ft W/ft W/ft W/ft 2 Walkways less than 10 feet wide Walkways 10 feet wide or greater, plaza areas special feature areas Stairways 0.7 W/linear foot 0.14 W/ft W/ft W/linear foot 0.14 W/ft W/ft W/linear foot 0.16 W/ft W/ft W/linear foot 0.2 W/ft W/ft 2 Pedestrian tunnels 0.15 W/ft W/ft W/ft W/ft 2 Building Entrances and Exits 20 W/linear foot 20 W/linear foot 30 W/linear foot 30 W/linear foot Main entries of door width of door width of door width of door width 20 W/linear foot 20 W/linear foot 20 W/linear foot 20 W/linear foot Other doors of door width of door width of door width of door width Entry canopies 0.25 W/ft W/ft W/ft W/ft 2 Free-standing and attached Building Grounds Sales Canopies 0.6 W/ft W/ft W/ft W/ft 2 Outdoor Sales Open areas (including vehicle sales lots) Street frontage for vehicle sales lots in addition to "open area" allowance 0.25 W/ft 2 No allowance 0.25 W/ft 2 10 W/linear foot 0.5 W/ft 2 10 W/linear foot 0.7 W/ft 2 30 W/linear foot 90

89 Exterior Lighting Power Non-tradable uses include: Building facades Automated teller machines and night depositories Entrances and gatehouse inspection stations at guarded facilities Loading areas for law enforcement, fire, ambulance, and other emergency vehicles Drive-up windows/doors Parking near 24-hour retail entrances 91

90 Exterior Lighting Exceptions 92

91 Review Daylighting and envelope requirements Exterior Lighting Lighting Power Lighting Controls Source: Daylighting Pattern Guide 93

92 System Commissioning 94

93 Lighting System Commissioning Automatic lighting controls functional testing: Hardware & Software Construction documents designate agent Code official may require 3rd party agent 95

94 Daylighting Control Commissioning Example Source: Energy Center of Wisconsin; Commissioning for Optimal Savings from Daylight Controls (2013) 96

95 Additional Efficiency Package Options: 1. Efficient HVAC 2. Efficient Lighting; LPA Table C * 3. On-Site Renewable Energy *About 10% lower LPA than base code 97

96 Lighting Options Package Table Interior Lighting Power allowances: Building Area Method Building Area Type LPD (w/ft2) Automotive facility 0.82 Convention Center 1.08 Courthouse 1.05 Dining: Bar lounge/leisure 0.99 Dining: Cafeteria/fast food 0.90 Table Interior Lighting Power allowances: Building Area Method cont. Building Area Type Motion Picture Theatre.83 LPD (w/ft2) Multifamily 0.60 Museum 1.06 Office 0.90/.85 Performing Arts Theatre 1.39 Dining: Family 0.89 Dormitory 0.61 Exercise Center 0.88 Fire Station 0.71 Gymnasium 1.0 Health Care Clinic 0.87 Hospital 1.10 Library 1.18 Manufacturing Facility 1.11 Hotel/Motel 0.88 Police Station.96 Post Office 0.87 Religious Building 1.05 Retail 1.4/1.3 School/University 0.99 Sports Arena.78 Town Hall 0.92 Transportation 0.77 Warehouse 0.6 Workshop

97 Electrical Systems Electrical Metering Dwelling Units Separate Meters Required on Each Dwelling Unit Unit One Unit Two 100

98 Compliance 101

99 Compliance Issues All Commercial Building Types Lighting Mandatory manual & automatic controls critical to energy savings Lighting Power Density (LPD) calculations often done incorrectly Daylit areas to be controlled separately Daylight/Skylight provisions in both envelope and electrical sections When COMcheck is used for compliance, fixture wattage and building or space area is often improperly entered 102

100 ASHRAE 90.1 Energy Cost Budget Method Energy cost budget method Compare a proposed design with code compliant design Demonstrate proposed design is at least as energy efficient as the code compliant design Approach Allows great flexibility but Requires considerable effort Still must meet all mandatory lighting, HVAC, and service water heating requirements 103

101 Commercial Energy Code Software COMcheck Compiles user inputs Calculates allowed envelope trade-offs Provides printable organized output Does not prove compliance Accuracy of inputs is key 104

102 Project Information- General 105

103 Documentation 106

104 Interior Lighting 107

105 Exterior Lighting 108

106 Limitations of COMcheck No trade-offs between envelope, HVAC and lighting systems Not performance based software Can only use for buildings up to 40% WWR if demonstrating compliance with the IECC 109

107 Electrical Key Points Both manual and automatic lighting control requirements Use rated lamp/ballast wattage to calculate LPD LPD approach for exterior lighting Daylit areas need to be controlled separately Lighting controls must be included in system commissioning 110

108 Recommended Compliance Procedure Obtain full project documentation Full set of plans and specifications including: Lighting schedule COMcheck or other code compliance calculations/documentation License numbers and/or other documentation of design professionals Review plans for code compliance There should be enough detail in project documents to verify code compliant design Compliance must follow MA Code or 90.1 Building Energy Cost Methodology & Mandatory prescriptive provisions of MA Code 111

109 Commercial Plan Review Best Practice Energy efficiency features that should be on the plans for the Lighting System Lighting fixture schedule with wattage and control narrative Location of daylight zones on floor plans Source: BMG 112

110 Commercial Inspection Best Practice Electrical substantial completion Fixture bulb and ballast type and quantity Lighting controls Electric meter for each dwelling unit. Source: BMG Source: BMG 113

111 Commercial Inspection Best Practice Final inspection All energy features that were not reviewed during other inspections Source: BMG 114

112 Lighting Project Example Sherwood Middle School Source: Gilbane Co. & CENTRIA Source: Gilbane Co. & CENTRIA 115

113 Lighting Project Example Sherwood Middle School Program challenges included providing lighting solutions for a large flex space and integrating daylighting into a variety of spaces Lighting Design Includes: LED and Dimmable fluorescent lighting Network lighting control with occupancy sensors and daylight harvesting High efficiency transformers 116

114 Lighting Project Example Sherwood Middle School Energy Code Allowable LPD 1.2 As-built Lighting Power Density 0.70 Annual kwh Savings (Lighting Only) 67,500 Lighting System Design 41% better than code MA-CHPS Certification 117

115 Resources Designlights Consortium Qualified Products List (QPL): Advanced Lighting Guidelines (ALGonline): Daylighting Pattern Guide: /home 118

116 Codes and Standards Initiative Sponsors 119