September 24, 2015
Ishtiaq A Chisti
Energy Codes & Standards Group
Customer Programs & Services/Customer Service
SCE
AEE 2015 Annual Conference 1
1. Brief Overview of Codes & Standards
2. Residential T-24 2016 Standards: Approved
3. Water Appliances T-20 Standards: Approved
4. Non-residential T-24 2016 Standards: Mostly Approved
Lighting Alteration Provisions delayed or canceled
4. Impacts on Utility EE Programs
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• No fixed rulemaking schedule
• Roughly every 3 years
• Adopted by CA Building Standard Commission
• Based on recommendation provided by CEC
– Model codes
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• Adopted by the CEC: June 10, 2015 by a vote of five to zero (except NR
Lighting Alterations)
• Final Approval by the California Building Standards Commission: Nov-Dec 2015
• Effective Date:
January 1, 2017
• According to the CEC, Increased Efficiency from 2016 vs. 2013 Title 24:
New buildings will save:
Res: 345 GWh/yr electricity consumption (28%)*
Non-res: 192 GWh/yr electricity consumption (5%)
CO2e emissions reduced by 160,000 metric tons/yr
Save 106.2 million gallons of water/year.
Save over $4 billion with a cost of $1 billion over 30 years
* 50,000 homes at 6,900 kWh/home
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1. High Performance Attics (HPA)
Roof deck insulation equivalent to R-13 insulation below deck and R-38 ceiling insulation. Insulation choices may include spray foam, batt, or blown-in, and SIP panels. Other options include:
R-6 continuous insulation with radiant barrier
Hybrid roofing systems combining insulation and higher roof reflectance
Ducts in conditioned space (DCS)
Ducts in sealed or unvented attics
2. High Performance Walls (HPW)
R19 cavity + R5 Continuous Insulation – U-Factor (Approx 0.051). Other options include:
2x4 @ 16” OC, R15 + R-8 CI (0.051)
2x6 @ 24” OC, R19 + R-5 CI (0.049)
2x6 @ 24” OC, R21 + R-4 CI (0.048)
Staggered studs with batt insulation or spray foam
Structurally Insulated Panels (SIPs)
3. Instantaneous (Tankless) Water Heaters – basis with Energy Factor of 0.82
4. High Efficacy Lighting & Controls in kitchens & throughout the house (essentially eliminates incandescent by mandating pin-based lamps and expanding types of spaces req controls)
Nos 1 & 2 may be traded in most climate zones by installing a solar PV system capped at 2 kW
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Nonresidential Measures Mostly to Stay In-line With ASHRAE 90.1 National Standards:
* Controls and other measures related to Lighting Alterations/Retrofit was vociferously protested by certain labor/trade groups. CEC is holding further public review (Aug 12) and this section (Title 24, Part 6, Sections
141.0(b)2I, J, K, and L) will be folded into the current adoption without requiring a new rulemaking.
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Nonresidential Lighting Alternation Provisions Draft/Not Approved to Date
The Statewide IOU EC&S & EE Incentive programs teams worked closely with the CEC to update the 2013 provisions
Lighting Alteration Provisions Comparison
Measure
T-24 is triggered at what level of lighting modifications?
When new control is installed, acceptance tests required at how many luminaires?
Luminaire replacement and modifications can comply by installing auto-shut-off controls and area switches and by reducing power at what percentage?
2013
40 + greater than 10% of luminaires modified in a room
Code is ambiguous for lighting alterations and mod in place but manual requires acpt testing
Not by installed power reduction but if alteration or modification results in power in space being < 85% of area category LPD
2016
70 + greater than 2 luminaires modified in a room
20
Alterations 35% or reduce LPD to
< 85% of area category LPD
Are daylighting controls and dimming controls required?
Yes if installed LPD > 85% of area category LPD
No if installed LPD < 85% of area category LPD
Mod in place 35% or LPD < area category LPD
Lighting alterations
Yes if installed LPD > 85% of area category LPD
No if installed LPD < 85% of area category LPD
Modifications - No
• Streamlines & simplifies standard compared to 2013 standard
• Expected energy savings to the tune of 74 GWh/yr. Comparable to savings from high efficacy lighting in the residential new construction standards
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Nonresidential Lighting Alternation Provisions
The CEC withdrew its adoption of the provisions at its Business Meeting on
August 12. Most likely due to fierce opposition from labor groups (IBEW, NECA, and LMCC)* lobbying through the Governor’s office.
Support
• The IOUs, including SCE are generally supportive, although none provided any written comments
• EcologyAction, who works closely with SCE EE Program folks expressed support
• The city & county of San Francisco, Davis, & Stanford University expressed support
• Also in support are numerous small lighting installers
Oppose
• Besides Big Labor, LADWB and some lighting installers and consultants opposed the provisions
• Several lighting manufacturers opposed the provisions but would support them if their suggested changes are incorporated
*IBEW: International Brotherhood of Electrical Workers
NECA: National Electrical Contractors Association
LMCC: Labor Management Cooperation Committee
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Very little opposition because of the Drought
Adopted by the CEC: August 12, 2015 by a vote of five to zero
Bathroom Faucets :
1.5 gallons per minute flow rate (effective Sep 1, 2015)
1.2 gallons per minute flow rate (effective Jul 1, 2016)
Shower Heads :
2.0 gallons per minute maximum flow rate (effective Jul 1, 2016)
1.8 gallons per minute maximum flow rate (effective Jul 1, 2018)
Current rules, established in 1994 at the federal level, allow a maximum flow of 2.5 gallons per minute from a shower head.
CEC: After a full turnover of shower head and faucet stocks by 2029, the regulations are expected to save 38 billion gallons of water, 20.2 billion cubic feet of natural gas and 1,322 gigawatt hours of electricity
(including embedded energy)
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Residential x Cal Advanced Homes Program offers x Direct Install (Title-20 effect: 45 lm/W baseline)
♫ LED Quality Spec – easier to implement
(database to be maintained by CEC)
Non-Res x Parking lot lighting (generally doubled in stringency) x LPD Stringency
– Auditoriums
– Libraries
– Houses of Worship
–
Restaurants
– Convention Centers
– Museums
– Banks
♫ Opportunity to incent Daylighting, Demand Response, and Dimming controls through 2019 (if Lighting Alteration provisions are approved as proposed)
♫: Opportunity X: Negative impact
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Zero Net Energy : Residential by 2020 and Nonresidential by 2030
Current Official Definition: “
A ZNE Code Building is one where the net amount of energy produced by on-site renewable energy resources is equal to the value of the energy consumed annually by the building, at the level of a single ‘project’ seeking development entitlements and building code permits, measured using the CEC’s Time Dependent Valuation (TDV) metric. A ZNE Code Building meets an
Energy Use Intensity value designated in the Building Energy Efficiency Standards by building type and climate zone that reflect best practices for highly efficient buildings.
”
Governor Brown’s ZNE goals – focused on ZNE building code requirement by 2020 for newly constructed residential buildings – Get there in 3 code cycles (2013, 2016, 2019)!
Key element is TDV!
Time Dependent Valuation (TDV)
1.
Value of gas and electricity changes depending on the season and the time of day
2.
8,760 TDV multipliers for each hour of the year
3.
Favors measures that save energy during high demand periods
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CEC Site for More Info: http://www.energy.ca.gov/title24/2016standards/index.html
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AEE 2015 Annual Conference
DSM Steering Team Meeting
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2016 Changes to Title 24 Residential Lighting Requirements
The residential lighting requirements in Title 24 are mandatory requirements and do not show up in the performance approach except as default values and thus is not able to be traded off. This has not changed in 2016.
The 2016 standards have been significantly simplified as there is no longer any calculation of lighting wattage, the requirements are simple
-- all lighting has to be high efficacy and if the light source is LED or is a lamp with a base that was traditionally incandescent (Edison screw base, halogen GU-11 or GU-5.6 etc) then the lamp must comply with Joint Appendix JA8 labelled “JA8-2016” – this essentially requires a high quality, LED source. The requirement for JA8 lamps are complex but that is something the manufacturers will figure out similar to the complex requirements for ENERGY STAR®, the consumer and the building official only need look for the JA8-2016 label on the lamp.
Area or Lighting Component
Low efficacy luminaires
2013 Lighting Requirements
Allowed if has dimmer or vacancy sensor
2016 Lighting Requirements
Not allowed
High efficacy luminaires
Kitchen lighting
Cabinet lighting
Blank electrical boxes above 5 feet
Bathroom lighting
Recessed downlights
Required for all lighting in Garages, Laundry Rooms, and
Utility Rooms
Required everywhere. High efficacy allows JA8-2016 labelled screw base lamps
50% of lighting wattage high efficacy + 50 watts for dwelling units <2,500 sf + 100 Watts for dwelling units >
2,500 sf
All high efficacy lighting - no specific requirements for cabinets
20 watts per linear foot measured horizontally or vertically and vertically limited once per 40 inch section of cabinets
In kitchens treated as 180 Watts of low efficacy lighting.
Elsewhere not covered
All high efficacy lighting - no specific requirement for cabinets
All rooms, must have a dimmer or fan speed control
At least one high efficacy luminaire, any low efficacy lighting controlled by vacancy sensor
Insulation contact, airtight, be sealed with gasket or caulk, ballasts able to be changed from below
All high efficacy lighting - no specific efficacy requirement for bathrooms. Bathroom lighting at least one luminaire controlled by vacancy sensor
Same requirements plus: no screw based sockets, comply with JA8-2016-E, comply with elevated temperature requirements.
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2016 Changes to Title 24 Residential Lighting Requirements (continued)
Area or Lighting Component
Fluorescent ballasts > 13 W
Night lights
Lighting in kitchen exhaust hoods
Screw base sockets in luminaires
Enclosed luminaires
Vacancy sensors
Forward phase cut dimmers
Outdoor lighting single family
Outdoor lighting low-rise multifamily
Outdoor parking lots and carports > 8 vehicles
Residential garages > 8 vehicles
Multifamily common areas < 20% of total area
Multifamily common areas > 20% of total area
2013 Lighting Requirements
Electronic > 20 kHz frequency
< 5 Watts, not have to be controlled
Exempted
2016 Lighting Requirements
Same
Same
Same
Treated as low efficacy
No requirements
Required for all lighting in Garages, Laundry Rooms, and
Utility Rooms
No requirements
High efficacy or low efficacy plus: manual switch, time clock, photosensing* and motion sensing
Comply with residential outdoor lighting requirements or nonresidential outdoor lighting requirements
Nonres outdoor lighting requirements
Not allowed in recessed downlights, otherwise allowed if labelled "JA8-2016 or JA6-2016-E (elevated temp)
Light sources marked JA8-2016-E
Control at least one luminaire in Garages, Laundry Rooms, and Utility Rooms, Plus Bathrooms
Meet NEMA SSL 7A
High efficacy plus manual control plus timeclock and photocontrol or motion sensing and photocontrol.
Same
Nonres parking garage requirements
Lighting high efficacy OR controlled by occupant sensor
Nonres requirements plus bi-level occupancy control
*Astronomical timeclock replaces photosensing
Same
Same
Lighting high efficacy AND controlled by occupant sensor
Same
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2016 Title-24 Standards
GENERAL HARDSCAPE 1 LIGHTING POWER ALLOWANCE BY LIGHTING ZONE 2
Type of
Power
Allowance
Lighting Zone
0 Lighting Zone 1 Lighting Zone 2 4 Lighting Zone 3 4
2013 2016 2013 2016 2013 2016
Area
Wattage
Allowance
(AWA) W/ft²
0.035
0.020
0.045
0.030
0.090
0.040
Linear
Wattage
Allowance
(LWA) W/lf
Initial
Wattage
Allowance
(IWA) W
No allowance *3
0.25
340
0.15
340
0.45
510
0.25
450
0.60
770
0.35
520
Lighting Zone 4
2013
0.115
0.85
1030
2016
0.050
0.45
640
1 The general hardscape area of a site shall include parking lot(s), roadway(s), driveway(s), sidewalk(s), walkway(s), bikeway(s), plaza(s), bridge(s), tunnel(s), and other improved area(s) that are illuminated.
2 LZ1 = Government designated parks, recreation areas, and wildlife preserves. Those that are wholly contained within a higher lighting zone may be considered by the local government as part of that lighting zone.
LZ2 = Rural areas, as defined by the 2000 U.S. Census
LZ3 = Urban areas, as defined by the 2000 U.S. Census
LZ4 = high-activity commercial districts in major metropolitan areas
*3 Continuous lighting is explicitly prohibited in Lighting Zone 0. A single luminaire of 15 Watts or less may be installed at an entrance to a parking area, trail head, fee payment kiosk, outhouse, or toilet facility, as required to provide safe navigation of the site infrastructure. Luminaires installed in Lighting Zone 0 shall meet the maximum zonal lumen limits for Uplight and Glare specified in Table 130.2-A and 130.2-B.
4 For Lighting Zone 2 and 3, where greater than 50% of the paved surface of a parking lot is finished with concrete, the AWA for that area shall be 0.035 W/ft2 for
Lighting Zone 2 and 0.040 W/ft2 for Lighting Zone 3, and the LWA for both lighting zones shall be 0.70 W/lf. This does not extend beyond the parking lot, and does not include any other General Hardscape areas.
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