C A L I F O R N I A E N E R G Y C O M M I S S I O N Key Revisions to the Lighting Requirements of...

C A L I F O R N I A E N E R G Y C O M M I S S I O NC A L I F O R N I A E N E R G Y C O M M I S S I O N

Key Revisions to theLighting Requirements of

Title 24, Part 6, 2013Nonresidential Requirements

Owen [email protected]

(916) 654 4664

C A L I F O R N I A E N E R G Y C O M M I S S I O N

Overview• Title 24, Part 6, 2013 Standards become effective

for projects for which a permit application is received on or after January 1st, 2014.

• The code language has been approved and is final• The compliance manuals and alternative

calculation method are available and will be updated periodically during the life of the Standards.


Summary of Changes• Code sections have been renumbered• Section 119 requirements for control devices have been split

between Title 20 (for “devices”) and Section 110.9 (for “systems”)

• Reductions in office and retail LPDs (§140.6)• Additional office Power Adjustment Factors (§140.6)• Changes to luminaire classifications and calculations of “actual

lighting power” (§130.0)• Mandatory multi-level control (dimmable) (§130.1(b))• Mandatory partial on/off occ sensors in corridors, stairwells,

library stacks and warehouse aisles (§130.1(c))


Summary of Changes (cont’d)• Security and egress lighting must be switched off automatically

(§130.1(c))• Mandatory photocontrols in much smaller spaces (§130.1(d))• Mandatory demand response in all buildings >10,000 sf

(§130.1(e))• Expanded code compliance for retrofit projects• Reduced outdoor LPDs• Mandatory UG (not BUG) for outdoor luminaires• Mandatory photocontrol and time scheduling for outdoor

luminaires• Mandatory partial on/off occ sensing for outdoor luminaires

mounted at 24’ or less


Requirements for lighting control devices and systems

• Section 119 requirements have been split:– Title 20 for “devices”

• Consist of a single component• Must be certified to the Energy Commission according to Title 20

– Except for part-night outdoor lighting controllers

– Section 110.9 for “systems”• Consist of more than one component• Not required to be certified to the Energy Commission• Shall meet all of the requirements in Title 20 for the identical self-

contained lighting control device it is installed to function as• Installation certificate shall be signed by the licensee of record in

accordance with §130.4(b) and Nonresidential Appendix NA7


Lighting Power Densities• Reductions in Area Category LPDs

– Office task lighting allowance increased from 0.2 to 0.3 W/sf– Open office (>250sf) reduced from 0.9 to 0.75 W/sf

• Assumes 2-lamp T8 fixtures at typical efficiency

– Private office (<250sf) reduced from 1.1 to 1.0 W/sf– Retail reduced from 1.6 to 1.2 W/sf with “use-it-or-lose-it” adders:

• Still based on linear fluorescent fixtures• 0.3 W/sf for accent, display and feature lighting (must be adjustable or

directional luminaires)• 0.2 W/sf for decorative lighting

• Reductions in Tailored Method LPDs– Reductions are only slight, to reflect some market change from

incandescent to CMH/LED


New Power Adjustment Factors• New Power Adjustment Factors for occupancy

sensor control in open offices (Table 140.6-A) – 0.2 for 250-500sf per sensor (4 people)– 0.3 for 125-250sf per sensor (2 people)– 0.4 for <125sf per sensor (1 person)

PAF applies only to the controlled load


Luminaire Classification and Power• Peel-down labels showing relamping wattage are now allowed for “multi-

wattage” luminaires that can accept different wattage lamps without changing the ballast (130.0(c)1B):– HID luminaires <= 150W– Low voltage luminaires <=24V, <=50W– CFL luminaires <=42W

For line-voltage recessed luminaires, the labeled relamping wattage shall not be less than 50W per socket

• Certain field modifications and conversions shall not be recognized as converting luminaires to a different technology:– Field modification of luminaire housings (e.g., hard wiring of an LED module).– Replacement of linear fluorescent lamps with lamps of a different technology

(such as LED lamps).

• Note that LED luminaires for residential applications must be certified to the Energy Commission and must have >=90CRI.


Multi-Level (Dimming) Control• Mandatory for the general lighting of any enclosed nonresidential area 100

square feet or larger, with a connected lighting load >0.5 W/sf (§130.1(b))• For continuous dimming luminaires, manual dimming control must be

provided (§130.1(a)2C).• Each luminaire shall be controlled by at least of one of the following

methods:– Manual dimming meeting the applicable requirements of §130.1(a)– Lumen maintenance as defined in §100.1– Tuning as defined in §100.1– Automatic daylighting controls in accordance with §130.1(d)– Demand responsive lighting controls in accordance with §130.1(e)

EXCEPTION 1 to §130.1(b): Classrooms, with a connected general lighting load of 0.7 W/sf or less, shall have at least one control step between 30-70 percent of full rated power.


Multi-level Control Requirements (Table 130.1-A)

Luminaire TypeMinimum Required Control Steps

( percent of full rated power1 )

Uniform level of illuminance shall be achieved by:

Line-voltage sockets except GU-24

Continuous dimming 10-100 percentLow-voltage incandescent systemsLED luminaires and LED source systemsGU-24 rated for LEDGU-24 sockets rated for fluorescent > 20 watts

Continuous dimming 20-100 percentPin-based compact fluorescent > 20 wattsGU-24 sockets rated for fluorescent ≤ 20 watts

Minimum one step between

30-70 percentStepped dimming; or continuous dimming; or switching alternate lamps in a luminaire

Pin-based compact fluorescent ≤ 20 watts2

Linear fluorescent and U-bent fluorescent ≤ 13 watts

Linear fluorescent and U-bent fluorescent > 13 watts

Minimum one step in each range: Stepped dimming; or continuous dimming; or switching alternate lamps in each luminaire, having a minimum of 4 lamps per luminaire, illuminating the same area and in the same manner

20-40 % 50-70 % 80-85 % 100 %

Track LightingMinimum one step between

30 – 70 percent

Step dimming; or continuous dimming; or separately switching circuits in multi-circuit track with a minimum of two circuits.

HID > 20 watts

Minimum one step between

50 - 70 percent

Stepped dimming; or continuous dimming; or switching alternate lamps in each luminaire, having a minimum of 2 lamps per luminaire, illuminating the same area and in the same manner.

Induction > 25 watts

Other light sources


Partial ON/OFF Occupancy Sensors• "Partial ON" occupancy sensors save energy by switching on only

some of the lights automatically when spaces become occupied– Generally suitable in "owned" space– Eligible for a Power Adjustment Factor in some applications, e.g. spaces

<250 sf

• "Partial OFF" occupancy sensors save energy by automatically switching off some of the lights when spaces become unoccupied– Generally suitable in "unowned" space– Mandatorily required in some spaces – Eligible for a Power Adjustment Factor in some spaces (open offices)


Partial ON control

System automatically switches onsome of the lights

User manually switches onremaining lights if required

Occupant entersthe space

Savings compared to single-level automatic-on control

Occupant leavesthe space

Time

Ligh

ting

pow

er System automatically switches offall the lights

Time delay


Partial OFF control

System automatically switches onfirst stage of lights, on a time schedule

System automatically switches onsecond stage of lights

Occupant entersthe space

Savings compared to simple time-schedule control

Occupant leavesthe space

Time

Ligh

ting

pow

er

System automatically switches offsecond stage of lights

System automatically switches off first stage of lights, on a time schedule

Time delay


Partial On/off Occupancy Sensors• Partial ON/OFF occupancy sensors are required in addition to

shut-off controls in:– Aisle ways and open areas in warehouses, library book stack aisles, and all

corridors and stairwells (130.1(c)6)• Lighting power shall be reduced by at least 50 percent when unoccupied• Each warehouse aisle shall be controlled independently• EXCEPTION: in warehouse aisles in which the installed lighting power is <=80 percent of

the value allowed under the Area Category Method, occupant sensing controls shall reduce lighting power by at least 40 percent.

• Partial ON/OFF occupancy sensors are required instead of shut-off controls in:– Stairwells and common area corridors which provide access to guestrooms and

dwelling units of high-rise residential buildings and hotel/motels; parking garages, parking areas and loading and unloading areas (130.1(c)7)

• Same rules and exceptions as above• <=500W per occupancy sensor in parking garages


Egress, Emergency and Security• Allowance for 24/7 lighting for building security has been removed (§130.1(a)

and §130.1(c)).• Allowances for 24/7 egress and emergency lighting have mostly been

removed.– 0.2 W/sf is excepted from the Area Control requirements, to provide egress

illumination along designated routes during occupied hours (§130.1(a)). • This was reduced from 0.3W/sf in 2008 code.• This lighting must be shut off at unoccupied times, per §130.1(c)

– 0.05 W/sf is excepted from the Shut-Off Control requirements, along designated egress routes in offices only. Other building types have no allowance. (§130.1(c))

• This was reduced from 0.3W/sf in 2008 code.• New excepted LPD is based on one controlled lamp per fixture.

• Emergency lighting, egress lighting and security lighting can still turn on if required! For instance in response to a motion sensor.

• Relevant Fire Code sections are Title 24, Part 2, Section 1006.1 and 1006.2


0.3 W/sf

Switchedon and off by occupants or by automatic controls

Security / egress / emergency allowance, held on 24/7

0.2 W/sf

Switchedon and off by occupants or by automatic controls

Egress allowance, held on duringoccupied hours,i.e. controlledonly by the§130.1(c) shut-off system

Title 24, Part 6, 2008 Title 24, Part 6, 2013

Egress allowance, held on 24/7 in offices only. This is NOT necessarily emergency lighting.

Emergency and Egress Control Layers

≈0.55 W/sf

0.05 W/sf

0.15 W/sf

≈0.55 W/sf

≈0.55 W/sf

Off

ices

Oth

er


Emergency and Egress Control Layers

Title 24, Part 6, 2008 Title 24, Part 6, 2013

• Red luminaires are emergency• Green luminaires are egress, they cannot be

shut off by occupants.• Both must be shut off when the building or floor

is unoccupied.• Up to 0.05 W/sf may be left on in office buildings

• Red luminaires are security/emergency/egress


Photocontrols & Demand Response

• Photocontrols– Threshold for mandatory photocontrols in primary daylit zone reduced from

2,500 sf to 120 Watts (§130.1(d)2D)– Prescriptive photocontrols in secondary daylit zone– Automatic daylighting controls must provide multi-level lighting, having at least

the number of control steps specified in TABLE 130.1-A– Exception for small/tinted windows removed (the effective aperture calculation)– Not required in alterations unless LPD is >85% of code max, or wiring is replaced

• Demand responsive controls– Applies to all buildings >10,000 sf– Lighting shall be automatically reduced in response to a demand response signal;

so that the building’s total lighting power can be lowered by a minimum of 15 percent below the maximum total lighting power

– Not required in alterations unless LPD is increased or wiring is replaced


Demand Response Options• All systems must be capable of

responding automatically to a DR signal. Three typical options:– Addressable luminaires or addressable

room controllers connected to a low voltage control network

– Lighting panels that provide a powerline signal to proprietary ballasts

– “Smart” (microprocessor controlled) breakers either integrated into an existing panel or in a new dedicated panel


Plug Loads and Disaggregation• Plug Load Controls

– In all buildings, both controlled and uncontrolled 120 volt receptacles shall be provided in each private office, open office area, reception lobby, conference room, kitchenette in office spaces, and copy room (130.5(d))

– Controlled receptacles shall follow the automatic shut-off requirements for lighting (130.1(c)(1 through 5))

– At least one controlled receptacle shall be installed within 6 feet of each uncontrolled receptacle

– Controlled receptacles shall have a permanent marking to differentiate them from uncontrolled receptacles

• Disaggregation– Electrical power distribution systems shall be designed to permit the

disaggregated measurement of electrical load energy uses downstream from the service meter

– Requirements vary according to the size of the load (Table 130.5-B)


Outdoor Lighting Power

* Strikeout shows 2008 values

*


Outdoor Lighting Shielding• Outdoor lighting glare control switched to IES BUG system (from

“cutoff” system)– Luminaires <=150W must be BUG compliant (reduced from 175W)– Maximum zonal lumens for Uplight shall be in accordance with Table 130.2-A– Maximum zonal lumens for Glare shall be in accordance with Table 130.2-B– Exceptions for:

• Signs. • Lighting for building facades, public monuments, statues, and vertical surfaces of

bridges.• Lighting not permitted by a health or life safety regulation to be a cutoff luminaire.• Temporary outdoor lighting.• [Exception has been removed for lighting used in or around swimming pools, water

features, or other locations subject to Article 680 of the California Electrical Code].• Like-for-like replacement of pole mounted luminaires at spacings >6:1• Luminaires that illuminate publicly maintained roadways, sidewalks, and bikeways.


IESNA BUG Ratings• Title 24, Part 6 contains mandatory

requirements for:– Uplight (UL, UH zones)– Forward light (FH, FVH)– Backlight (BH, BVH)

Source: IESNA


Secondary Solid Angle Maximum Zonal Lumens per Outdoor Lighting ZoneOLZ1 OLZ2 OLZ3 OLZ4

Uplight High (UH)100 to 180 degrees 10 50 500 1,000

Uplight Low (UL)90 to<100 degrees 10 50 500 1,000

Glare Rating for Asymmetrical Luminaire Types (Type I, II, III, IV)Secondary Solid Angle Maximum Zonal Lumens per Outdoor Lighting Zone

OLZ1 OLZ2 OLZ3 OLZ4Forward Very High (FVH)80 to 90 degrees 100 225 500 750

Backlight Very High (BVH)80 to 90 degrees 100 225 500 750

Forward High (FH)60 to <80 degrees 1,800 5,000 7,500 12,000

Backlight High (BH)60 to <80 degrees 500 1,000 2,500 5,000

Table 130.2 – A: Uplight Ratings (Maximum Zonal Lumens)

Table 130.2 – B: Glare Ratings (Maximum Zonal Lumens)

Outdoor Lighting Uplight & Glare


Outdoor Lighting Controls• 130.2-B. All outdoor lighting shall be controlled by both a

photocontrol system and an automatic scheduling control (130.2(c)1 and 2).– Photocontrol is required to shut lights off– Scheduling control is not required to shut lights off

• Luminaires mounted at 24’ or lower shall (in addition) be controlled by motion sensors that reduce lighting power by 40-80 percent when the area is unoccupied.– <=1500W controlled together– EXCEPTION: Part-night or motion sensor control is required for:

• Outdoor sales frontage, outdoor sales lots, and outdoor sales canopies• Building facade, ornamental hardscape and outdoor dining (centralized time-based

control is an option for these applications)


Lighting Alterations• Three types of “alteration”:

– “Lighting system alterations” (§141.0(b)2ii)• “an existing lighting system is modified, luminaires are replaced, or luminaires are

disconnected from the circuit, removed and reinstalled, whether in the same location or installed elsewhere.”

– “Luminaire modifications in place” (§141.0(b)2iii)• Includes ballast changeouts, change in light source (except some LEDs), one-for-one

luminaire replacements• Does not include gut-rehab projects, or line voltage wiring changes

– “Wiring alterations” (§141.0(b)2iv)• Adding circuits that feed luminaires• Replacing, modifying or relocating line voltage wiring• Replacing or installing a new panelboard feeding lighting systems

• Routine maintenance is not an alteration (§141.0(b)2vii)– “… Replacement in kind of parts of an existing luminaire that include only new

lamps, lamp holders, or lenses…”


Do LED Retrofits Trigger Code?• If the total wattage increases, requirements are the same as for NC.• They count as “luminaire modifications in place” if the “number or type of

light source” has changed.Section 141.0(b)2Ii (“Luminaire classification and power”) sets out the criteria

for determining this.• Examples of when the “type of light source” does not change:

– Field modification of luminaire housings (e.g., hard wiring of an LED module within an existing 6” can).

– Replacement of linear fluorescent lamps with T8 LEDs• If the LED is powered by the fluorescent ballast, or• If the fluorescent ballast is bypassed, or• If a new LED power supply is installed alongside the bypassed ballast

• Examples of when the “type of light source” does change:– Installation of a new LED luminaire (integral or light engine), which has both a UL

listing and a manufacturer’s catalog entry.


Retrofit Classifications• New definition: “Luminaire modifications in place”

(141.0(b)2):– Luminaires shall only be modified by the following methods:

1. Replacing lamps and ballasts with “like type or quantity”.2. Changing the number or type of light source in a luminaire including: socket renewal, removal or

relocation of sockets or lampholders, and/or related wiring internal to the luminaire.3. Changing the optical system of a luminaire in part or in whole.4. Replacement of whole luminaires one-for-one

– Luminaire Modifications-In-Place shall meet the following:1. Luminaire Modifications-in-Place shall not be part of or the result of any general remodeling or

renovation of the enclosed space in which they are located.2. Luminaire Modifications-in-Place shall not cause, be the result of, or involve any changes to the

panelboard or branch circuit wiring.EXCEPTION Circuit modifications strictly limited to the addition of occupancy or vacancy sensors and

class two lighting controls are permitted for Luminaire Modifications-in-Place.


Lighting Alterations


Luminaire Modifications in Place


2016 Revision of Title 24 Part 6• Currently scoping activities for next cycle

– Utilities and others are developing scope for CASE studies– Pre-rulemaking stakeholder meetings hosted by Energy Commission– Seeking to learn lessons from compliance and enforcement– Identify needed research for 2016 and 2019 cycles

• Transition to ZNE approach– Need an accurate breakdown of statewide lighting energy use– Parametric lighting energy use model would help with code development

• Get involved!http://www.energy.ca.gov/efficiency/listservers.html


CA Quality LED Specification• For line-voltage replacement LED lamps

– E11, E12, E17, E26, GU-24, GU-10, including recessed cans

• Efficacy requirements the same as ENERGY STAR• Quality requirements go beyond ENERGY STAR

– Dimming– Beam shape– Color appearance (CCT, binning)– Color rendering (CRI)

• Utility programs are rebating only compliant LED lamps• Basis for future Title 20 standard?


Title 20 (Appliance Standards)• Three types of lighting appliances to be regulated:

– Fluorescent lamp ballasts– LED integral lamps– MR lamps <2.25” diameter

• Federal EISA– Gives CA the ability to adopt a 45lm/W standard for A-lamps

in 2018– This has already been implemented through a Title 20

rulemaking– May be superseded if DOE begins new rulemaking soon

C A L I F O R N I A E N E R G Y C O M M I S S I O NC A L I F O R N I A E N E R G Y C O M M I S S I O N

Key Revisions to theLighting Requirements of

Title 24, Part 6, 2013Nonresidential Requirements

Owen [email protected]

(916) 654 4664

C A L I F O R N I A E N E R G Y C O M M I S S I O N Key Revisions to the Lighting Requirements of...

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