What’s New in the 2013 Energy Code?
Changes to mandatory Title 24 lighting requirements
Kelly Cunningham, Outreach Director
kcunning@ucdavis.edu
California Lighting Technology Center
University of California, Davis
RESEARCH
INNOVATION
PARTNERSHIP
633 Pena Drive, Davis, CA, 95618 | cltc.ucdavis.edu | PH: 530-747-3838, FAX:530-747-3812
Mission
To accelerate the development and
deployment of energy-efficient lighting and
daylighting technologies in partnership with
utilities, manufacturers, end users, builders,
designers, researchers, academics, and
governmental agencies.
MISSION-DRIVEN ACTIVITIES:
• Research & Development
• Demonstration & Outreach
• Education & Training
Lighting & Energy Efficiency
Luminous Efficacy
– One time, long duration change
– Reduction of baseline
• Light Source Efficacy
• Luminaire Efficacy
• Application Efficacy
Lighting Controls
– Continuous, real-time change
– Fluctuations from base line
• Occupancy / Vacancy
• Daylighting
• Demand Response
• Tuning
• Personal Control
Adaptive Lighting Systems…
automatically adjust their light output…
– Total Luminous Flux
– Spectral Power Distribution
– Candle Power Distribution
based on sensor input from the space they serve…
– Occupancy / Vacancy
– Daylight
– DR Signals
to optimize space and building performance.
– Comfort
– Energy Savings
– Peak Demand Reduction
Integrated Control Strategy
During occupancy focus on comfort
– Adjust fenestration for daylight penetration
– Adjust electric lighting for daylight contribution
– Offer manual control options
– Adjust electric lighting for demand response signal
– Adjust HVAC
During vacancy focus on energy efficiency
– Adjust fenestration for cooling/heating loads
– Turn electric lighting off or dim down
– Adjust electric lighting for demand response signal
– Adjust HVAC
General Requirement Updates
Navigating the 2013 Code
Occupancies
Mandatory
General Provisions
Prescriptive
Performance
Additions
100.0, 100.1, 100.2, 110.0, 110.10
Nonresidential, High-Rise Residential, and Hotels/Motels
General
140.0
140.2
140.1
141.0
Indoor Lighting
(conditioned)
110.9, 120.8, 130.0, 130.1,
130.4
140.3 (c), 140.6
140.1
141.0
Indoor Lighting
(unconditioned)
110.9, 120.8, 130.0, 130.1,
130.4
140.3 (c), 140.6
NA
141.0
Outdoor Lighting
110.9, 130.0, 130.2, 130.4
140.7
NA
141.0
NA
141.0
Signs
Indoor and Outdoor
130.0, 130.3
140.8
Low-Rise Residential
General
150.0
150.1 (a,c)
150.1(a,b)
150.2
Indoor Lighting
110.9, 130.0, 150.0 (k)
150.1 (a,c)
150.1(a,b)
150.2
Outdoor Lighting
110.9, 130.0, 150.0 (k)
150.1 (a,c)
150.1(a,b)
150.2
The Core Process
1.
Plan for all mandatory requirements
2.
Choose either prescriptive or
performance approach
3.
Calculate allowed lighting power for
chosen method
4.
Calculate proposed installed lighting power including applicable
controls credits
If proposed installed lighting power is LESS than the allowed
lighting power, the space is Title 24 compliant!
Navigating the 2013 Code
Mandatory Measures (Sections 120.0 through 130.5)
Measures required regardless of compliance method selected. These requirements are enforced for all
newly constructed nonresidential buildings, high-rise residential buildings, hotels/motels that are
mechanically heated or mechanically cooled, and all building additions or alterations.
Performance Approach (Section 140.1)
Allows compliance through a variety of design strategies and provides greater flexibility than the
prescriptive approach. These requirements are applicable when the building designer uses an energy
commission-certified compliance software program to demonstrate that the proposed building energy
consumption, including lighting power, meets the energy budget.
Prescriptive Approach (Sections 140.2 through 140.8)
Each individual energy component of the proposed building must be a prescribed minimum efficiency.
This approach offers less design flexibility, but is simpler to implement. There are three possible
approaches to allowed lighting power under the prescriptive approach: the Complete Building Method,
the Area Category Method, and the Tailored Method.
Selected changes from 2008 – 2013
PRIMARY FUNCTION AREA
ALLOWED LIGHTING
POWER (W/ft2)
2013
Office Area:
Parking Garage Area:
2008
>250 square feet
0.75
0.9
<250 square feet
1
1.1
0.14
0.2
0.3
0.6
1.2
1.6
Parking Area
Dedicated Ramps
Retail Merchandise Sales, Wholesale Showroom Areas
Power Adjustment Factors
The wattage of installed lighting may be
reduced by the product of the number of
watts controlled times the applicable Power
Adjustment Factor when calculating the
installed lighting power for that space.
Example:
– A 500 sf open office uses 500W of lighting.
If occupant sensing controls are used
(PAF = 0.2), that office is then considered to have:
– 500W – (500W*0.2) = 400W of installed lighting power
PAFs for 2013 code: Table 140.6-A
Alterations
More alterations will be required
to meet new-construction
standards for both lighting
power density (LPD) and
mandatory controls.
Exceptions do exist for buildings
with fewer than 40 ballasts
being replaced and spaces
where less than 10% of the
lighting is affected.
Consistent with proposed
changes to ASHRAE 90.1-2010
Luminaire alterations
Modifications-in-place
New category added:
Luminaire modifications-in place
– Replace lamps & ballasts (preserve
luminaire listing)
– Changing the number of light
sources IN the luminaire
– Optical system changes
– Replace whole luminaire,
one-for-one
Page 201 in code
If the modification is part of a larger
remodel or the luminaire moves,
this is not a valid category
Luminaire modifications-in place
Luminaire modifications-in place are NOT
These …
Without these …
Image: ChinaLEDLight.biz
Images: Lutron
What should they look like?
Source
Image: Cree
+
Luminaire
Image: Cree
+
Controls
Image: Enlighted
20
Certification and Permit Process
Building Commissioning
Must be included in the design and construction process for
all nonresidential buildings
– Design Phase: Design Review
– Document commissioning measures in construction documents
For buildings larger than 10,000 sf, additional measures are required
– Summary of Commissioning Requirements
– Owner’s Project Requirements document
– Basis of Design document
– Commissioning Plan
– Functional Acceptance Test Reports
– System Document and Training documents
– System Operations Training
– Commissioning Report
Expanded Acceptance Test Requirements
Lighting controls acceptance
test technicians must be
Certified Lighting Controls
Acceptance Test Technicians
(CLCATT)
Acceptance tests expanded
– Automatic Daylighting Controls
– Indoor Shut-off controls
– Demand Response Controls
– Outdoor Shut-off Controls
Expanded Acceptance Test Requirements
Industry Coverage by Certification
Provider(s). The Certification Provider(s)
approved by the Energy Commission, in
their entirety, shall provide reasonable
access to certification for technicians
representing the majority of the following
industry groups: electrical contractors,
certified general electricians, professional
engineers, controls installation and start-up
contractors and certified commissioning
professionals who have verifiable training,
experience and expertise in lighting
controls and electrical systems. The Energy
Commission will determine whether in their
entirety reasonable access to certification is
provided by considering factors such as
certification costs commensurate with the
complexity of the training being provided,
certification marketing materials,
prequalification criteria, class availability,
and curriculum.
Acceptance Test Technicians
For all lighting controls requiring
acceptance testing, alterations
and new constructions:
– Certifies plans, specifications, installation
certificates, and operating and
maintenance information meet the
requirements of Part 6.
– Automatic daylight controls comply with
Section 130.1(d) and NA7.6.1.
– Lighting shut-OFF controls comply with
Section 130.1(c) and NA7.6.2.
– Demand responsive controls comply with
Section 130.1(e) and NA7.6.3.
– Outdoor lighting controls comply with the
applicable requirements of Section
130.2(c) and NA7.8.
Image: Lutron
Electrical Power Distribution Systems
New chapter!
– Service metering
– Disaggregation of circuits
– Voltage drop
– Receptacle control
– DR
– EMCS
Requirements start at > 50 kVA
See Table 130.5-B
Demand Response
•
Buildings > 10,000 ft2
•
Alterations that increase the
connected load within a space in
a building that > 10,000 ft2
•
Reduce lighting power
at least 15%
•
Spaces that are non-habitable or
with a lighting power density of
< 0.5 W/ft2 shall not be used to
comply with the DR requirement
In the code: 130.1 (e)
Mandatory Device Requirements
Lighting devices regulated by
California Appliance Efficiency
Standards, Title 20 and Certified
to the Energy Commission:
– Fluorescent lamp ballasts
– Lighting control devices and
lighting control systems
RES SPECIFIC
– Track lighting: integral current
limiters and supplementary
overcurrent protection panel
– High efficacy LED light sources
– Ballasts for residential
recessed luminaires
Indoor Lighting Controls Requirements
Mandatory Device Requirements
Majority of lighting control devices
are now regulated by the
California Appliance Efficiency
Standards, Title 20:
– Time switch controls
– Daylighting controls
– Dimmers
– Occupant sensing devices
– Part-night outdoor lighting controls
Area controls
•
All luminaires must have
manual switching
•
Each area of a building must be
separately controlled
– An area is defined by
floor-to-ceiling partitions
•
Up to 0.2 watts of egress lighting
may remain on during occupied
times.
– Down from 0.3 watts in 2008
Area controls
•
Controls must be readily
accessible and located in the
same area as or viewable from the
controlled lighting
•
If controlling dimmable luminaires,
dimmer switch must allow manual
on and off in addition to dimming
•
A few exceptions: large retail,
industrial and entertainment
venues as well as public
bathrooms with 2+ stalls
Separately controlled lighting systems
•
General lighting must be
separately controlled
•
Floor and wall display,
window display, case display,
ornamental, and special
effects lighting must be
separately controlled
•
Track lighting: general,
display, ornamental, and
special effects lighting must
be separately controlled
Image credit: Acuity
Multi-level lighting control requirements
Changes from 2008:
•
Areas with LPD greater than
0.5 W/sf now, was 0.8 W/sf
•
Requirements based on
source type, was only one
control step between 30% and
70% of full output
•
Additional control strategy
required, previously no additional
requirements
•
There are some exceptions
Multi-level lighting controls: 2013 details
Areas ≥ 100 ft2 with connected
lighting load > 0.5 W/ft2 must
meet control and uniformity
requirements of Table 130.1-A
Must also use one of the
following control strategies:
•
Manual dimming
•
Lumen maintenance
•
Tuning
•
Automatic daylighting
•
Demand response
Lumen Maintenance
“a strategy used to provide a
precise, constant level of
lighting from a lighting
system regardless of the age
of the lamps or the
maintenance of the
luminaires.”
Compares the amount of light
currently produced to the
amount of light produced when
the luminaire was brand new
Often specified as L70 – the
number of hours it takes for the
lumen output to shrink to 70%
of initial output
36
Tuning
“the ability to set maximum light
levels at a lower level than full
lighting power.”
Project spotlight:
Davis downtown café sets
maximum light levels for all
luminaires at 70% of full power
to curb over-lighting
Download the project overview:
http://cltc.ucdavis.edu/publication/brighterbrew-mishkas-cafe-makes-switch-leds
37
Table 130.1-A
What does multi-level lighting look like?
Sensor
+
Image: Wattstopper
Image: Cree
Luminaire
What does multi-level lighting look like?
Sensor integrated with luminaire
Image: Finelite
What does multi-level lighting look like?
Networked system
Image: Enlighted
What does multi-level lighting NOT look like?
Multi-level exceptions
Classrooms with connected
load of ≤ 0.7 W / ft2 must
have at least one control
step between 30–70% of
full power.
Areas with only one
luminaire and no more than
two lamps are exempt
Shut-off Controls
Indoor lighting must have controls that:
– Automatically turn off lighting
when unoccupied
– Controls each floor of a building separately
– Controls each space of a building separately
Shut-off controls exceptions
– Where the lighting is in use 24/7,
365 days a year
– Lighting for emergency egress
– Electrical equipment rooms
Occupant sensing controls required to
shut off all lighting when area is vacant
– Offices 250 ft2 or smaller
– Multipurpose rooms 1000 ft2 or smaller
– Classrooms
– Conference rooms
Egress
Reduced exception for egress lighting
2008: 0.3 W/sf anywhere
2013: Maximum security and egress
lighting allowance of 0.2 W/sf when a
building is occupied
– General and egress lighting must be
shut off during unoccupied times
– Exception: Offices are allowed up to
0.05 W / ft for lighting during
unoccupied periods, but only along
emergency egress areas designated
on the building plans
2
Time-switch controls
•
Countdown timer switches may only be used in:
– Single-stall bathrooms < 70 ft2
– Closets < 70 ft2
– Aisles in server rooms, max 30 min time out
•
Automatic time-switch controls:
– Lighting to remain on for no more than two hours
– Must have an automatic holiday shut-off
– Does not apply to retail spaces, restaurants,
grocery stores, churches, and theatres
Time-switch controls
If an automatic time-switch control,
other than an occ sensor, is used to
comply with this section it should have
an override that :
– Allows lighting to remain on for no more
than two hours
• Does not apply to retail spaces,
restaurants, grocery stores,
churches, and theatres
– Has an automatic holiday shut-off
• Exception: retail stores, places of
worship, theaters (i.e. places where
people go on holidays)
Guest rooms in hotels / motels
Key card activated hotel
and motel guest rooms:
Lighting OFF after 30
minutes
Hotel/motel rooms:
allows for one high
efficacy luminaire with a
switch within 6 ft of door
Partial ON/OFF: Changes from 2008
Specific requirements for
partial ON/OFF occupancy sensors;
none required in 2008
– Parking garages
– Other indoor parking areas
– Indoor loading and unloading zones
– Library book stacks*
– Stairwells and corridors*
– Warehouse aisle ways and open areas*
* in addition to automatic time switch controls
Adaptive corridor with multi-level controls
100% Power
25 fcd
40% Power
13 fcd
20% Power
4.0 fcd
Case Study: Latham Square, Oakland, CA
•
Commercial office building in
downtown Oakland
•
14 stories and 130,000 ft2
•
Case study install on 12 floors
•
Corridor occupancy rate: 8%
•
175 luminaires replaced in corridors
•
86% reduction in energy use
– 113,724 kWh annually
– $23,803 in energy and
maintenance costs
over the life of the fixtures
Reduce to at least 50% on vacancy
Areas where partial ON/OFF
occupant sensing controls are
required in addition to partial OFF:
– Stairwells
– Corridors
– Aisle ways and open areas
in warehouses
– Library book stack aisles,
10 feet or longer
Reduce on vacancy, rather than off
Areas where partial ON/OFF
occupant sensing controls are
required instead of partial OFF:
– ≥ 50% reduction: Stairwells and
common area corridors in highrise residential buildings and
hotel/motels
– One step between 20-50%:
Indoor parking and
loading/unloading areas
• Control ≤ 500W per zone
Image credit: Philips
Exceptions: Reduce on vacancy, rather than off
Areas where partial ON/OFF
occupant sensing controls are
required instead of partial OFF:
– Stairwells: Where lighting power
≤ 80% the allowed power, 40%
reduction is OK
– Parking/loading: metal halide with
a lamp + ballast mean efficacy of
> 75 lm/w, one control step from
20-60% OK
UC Davis: Bi-level Stairwells
UC Davis installed 999 LED units
Assumed 20% occupancy rate
22W high / 5W low
PIR sensor times out after 5 min
Energy use reduction: 85%
7,008 hours in standby mode
1,752 hours in active mode
UC Davis: Adaptive Stairwells
Incumbent technology:
Campus Stairwell Demonstrations
Average Energy Savings: 50%
LaMar Voyager Bi-Level (VOB) Fixture
Reduce to at least 40% power on vacancy
Aisle ways and open areas in
warehouses where installed
lighting power ≤ 80% the value
allowed under the Area
Category Method
Accommodates MH or HPS
lighting in warehouses
Image credit: Philips
Image credit: Philips
Daylighting Controls: Changes from 2008
•
Manual controls requirement removed;
automatic controls now required in all spaces
•
Area size exemptions removed
•
Calculation method for daylit zones = simplified!
•
Parking garages are now included; previously exempt
Minimum daylighting for large spaces
Large enclosed spaces, such as large retail warehouses,
are required to have a minimum amount of daylight
available. The minimum requirements apply to both
conditioned and unconditioned spaces that are:
1.
2.
3.
4.
In Climate Zones 2–15
Have a floor area greater than 5,000 sq ft
Have a ceiling height greater than 15 ft
Have a general LPD greater than 0.5 W/sq ft
Buildings that meet the above
criteria must have:
•
•
Section 140.3 (c)
At least 75% of the floor space of
the building in a primary sidelit
zone or skylit zone
No more than 5% of the roof area
may contain skylights
Daylight Zones
Regions within a building that are close enough to a source of
daylight that daylight harvesting is possible are considered within
a “daylight zone.”
•
Skylit Zone: An area illuminated by one or more skylights
•
Primary Sidelit Zone: A daylit area directly adjacent to one or more
windows
•
Secondary Sidelit Zone: An area not directly adjacent to a window
that still receives some daylight through its proximity to the window
All daylight zones must be marked on the building floor plans.
Section 130.1 (d)1
Skylit Zone
When determining the skylit zone, the shape of the zone is the same as
the geometric shape of the opening of the skylight. For example, a
rectangular skylight creates a rectangular daylight zone, and a circular
skylight creates a circular zone.
Calculation Steps:
1.
Multiply the average ceiling height of the building by 0.7
2.
Add this value in all directions around the skylight
(starting at the edge of the rough opening)
3.
Subtract any area in which a permanent obstruction would block
daylight (taller than half the distance from the floor to the
bottom of the skylight)
Section 130.1 (d)1
Calculating the Skylit Zone
Section 130.1 (d)1
Primary Sidelit Zone
The primary sidelit zone is directly adjacent to windows and projects
inside the space a certain distance.
Calculation Steps
1.
Determine the window head height for each window
2.
The length of the zone is one window head height into the area
adjacent to the window
3.
The width of the zone is the width of the window plus half the
window head height one each side of the window
4.
Subtract any area on a plan that is blocked by a permanent
obstruction that is six feet or taller.
Window Head Height = Vertical distance from the finish floor level to
the top of a window.
Section 130.1 (d)1
Secondary Sidelit Zone
Secondary sidelit zones are extensions of primary sidelit zones. They
represent areas where daylight is present but may provide less
illumination because of their distance from windows.
Calculation Steps
1.
Add one additional window head height to the same dimensions
determined for the primary sidelit zone
2.
Subtract any area that is blocked by a permanent obstruction that is
six feet or taller
Section 130.1 (d)1
Calculating the Sidelit Zones
Section 130.1 (d)1
Daylighting Controls
•
Luminaires in primary
sidelit and skylit areas
must have photocontrols
•
Luminaires that fall in
both sidelit and skylit
zones are controlled by
skylit zone
•
Show primary sidelit
and skylit zones on the plans
•
When using the prescriptive method, the automatic daylighting controls
requirements for primary sidelit zones also apply to general lighting
luminaires that are at least 50% in a secondary sidelit zone.
Daylighting Controls
•
Daylit zones should be
controlled with the
multi-level steps in
Table 130.1-A unless
LPD < 0.3 W/sf
•
Light levels provided at
night should be available
at all other times
•
When sufficient daylight
is available, lighting
power must be reduced
by at least 65%
Wow. That’s a lot. EVERYWHERE?
Exceptions: Multi-level controls
are not required when
•
Controlled lighting LPD < 0.3 W/ft2
•
Skylights are replaced or added
but general lighting is not altered
•
Rooms with < 120 W in
the daylit zones
•
Rooms with a total glazing of < 24 ft2
Daylighting for Parking Garages
•
Show primary and
secondary zones on plans
•
Automatic controls required in both
primary and secondary zones,
control each zone separately
•
When ample daylight is
available in primary zone,
lighting power consumption
= ZERO
•
There are partial on/off
requirements for occupancy as well
(at least one step, 20–50%)
Controls for Parking Garages
General lighting must have at least one control step from 20–50% of
design lighting power
No more than 500 W of rated lighting power controlled together
Parking garage areas with ≥ 36 ft2 of glazing or opening must have
automatic daylighting controls.
Images Courtesy of Lithonia Lighting
Sign Lighting Controls
Indoor:
– Automatic time-switch OR astronomical
time-switch control
Outdoor:
– Photocontrol + automatic time-switch
OR astronomical time-switch control
– Outdoor signage that is on day and night
must be capable of dimming by 65%.
Electronic Message Center (EMC)
– EMCs with a > 15 kW load shall be DR
enabled to reduced ≥ 30%
Outdoor Lighting Control Requirements
Additions and Alterations
No req.
Mandatory Controls
§130.0, 130.2, 130.4
Mandatory Controls
§130.0, 130.2, 130.4
+
Performance/Prescriptive
Requirements
Lighting power density
allowances of §140.7
Any alteration that increases the connected lighting load
must meet all mandatory, prescriptive, or performance
measures that are required.
Section 141.0 (b)2J
Outdoor lighting
•
Title 24 2008 required
photocontrol devices for all
outdoor lighting.
•
In addition to photocontrols, the
2013 standards require
automatic scheduling controls
– Astronomical time-switch controls
allowed as an alternative to
photocontrol devices.
•
Outdoor lighting must be
circuited and independently
controlled from other
electric loads.
Lighting mounted ≤ 24 ft above the ground
Motion controls required:
•
Automatic lighting controls with auto-on when the areas are occupied
•
Automatic step dimming or continuous dimming when areas are vacant
•
No more than 1,500 W of lighting with a mounting height of 24 ft and
under may be controlled together
Images Courtesy of Lithonia Lighting
Full
Dimmed
Outdoor lighting ≤ 24 ft
A few exceptions apply:
•
Pole-mounted luminaires with a
maximum rated wattage of 75 W
•
Non-pole-mounted luminaires
with a maximum rated wattage
of 30 W
•
Linear lighting with a maximum
rated wattage of 4 W per linear
ft. of luminaire
Frontage areas, lots, sales canopies
A part-night outdoor lighting control, or
Auto-on motion sensor that automatically reduces lighting power
by at least 40% when spaces are vacant
Images Courtesy of Lithonia Lighting
Frontage areas, lots, sales canopies
A part-night outdoor lighting control must have all of the following:
– sunrise and sunset prediction accuracy within +/- 15 minutes and
timekeeping accuracy within five minutes per year
– ability to setback or turn off lighting at night as required in Section 130.2(c),
by means of a programmable timeclock or motion sensing device
– when controlled with a timeclock, capable of being programmed to allow
the setback or turning off of the lighting to occur as determined by the user
Facades, outdoor dining, ornamental
A part-night outdoor lighting control, or
Auto-ON motion sensors that reduce lighting power by at least
40% but no more than 80%, or
A centralized time-based zone lighting control capable of automatically
reducing lighting power by at least 50%
Image Courtesy of Lithonia Lighting
Outdoor lighting
All outdoor incandescent luminaires rated over 100 W and installed for
non-residential use must be controlled by a motion sensor in addition
to photocontrols and scheduling controls.
Left and Right Images Courtesy of Lithonia Lighting
(Backlight), Uplight and Glare Control
2013 code requires all outdoor
luminaires ≥ 150 W to comply
with the IES BUG system for
assessing and limiting
backlight, uplight and glare.
There are no Backlight
requirements in Section 130.2
of Part 6
Change from the older cutoff
system in 2008 standards,
which applied to luminaires
≥ 175 W
Backlight, Uplight, and Glare (BUG) ratings
The BUG system is used to evaluate luminaire performance in relation
to lighting trespass, sky glow, and high angle brightness. This is
necessary in order to reduce light pollution, which has a negative effect
on wildlife and the surrounding environments.
Backlight: includes all illumination that is in the space between the ground and 80
degrees above ground. Backlighting causes light trespass, which occurs when light
is cast in unwanted areas due to poor control.
Uplight: is defined as all light spanning across the sky. This causes artificial sky
glow, the illumination of the night sky due to excess lighting.
Glare: is any overlapping light between the uplight and the backlight which can be
visually disabling and offensive.
Uplight Control
Where can I find OLZ definitions?
Section 10-114 – Determination of outdoor
lighting zones and administrative rules for use
Table 10-114-A – Lighting zone characteristics
and rules for amendments by local jurisdictions
Page 32-33
Glare Control
Residential Requirements
2008 Title 24 Standards by Area
•
• > 50% of installed wattage must be high efficacy
LIGHTING
DESIGN GUIDE
Kitchen
Bathroom, garage, laundry room,
utility room, closets
• High efficacy or
• Manual-on vacancy sensor
All other interior rooms
• High efficacy or
• Manual-on vacancy sensor or
• Dimmer
Outdoor Lighting
• High efficacy or
• Low efficacy controlled by a manual on/off switch and both:
• Motion sensor without bypass switch and
• One of the following: integral photocontrol, astronomical time
clock, energy management control system
Common Areas
• High efficacy or vacancy sensor
Residential Parking
• Lots for < 7 cars must comply with Outdoor Lighting requirements
• Garages for < 7 cars must comply with Garage requirements
• Lots and garages for more than 7 vehicles must comply with
Nonresidential Lighting Standards
2013 Title 24 Standards by Area
•
• > 50% of installed wattage must be high efficacy
Kitchen
LIGHTING
DESIGN GUIDE
Bathroom
• One high efficacy fixture and
• Manual-on vacancy sensor or high efficacy for all other fixtures
Garage, laundry room,
utility room, closets
• High efficacy and
• Manual-on vacancy sensor
All other interior rooms
• High efficacy or
• Manual-on vacancy sensor or
• Dimmer
Outdoor Lighting
• High efficacy or
• Low efficacy controlled by a manual on/off switch and both:
• Motion sensor without bypass switch and
• One of the following: integral photocontrol, astronomical time
clock, energy management control system
Common Areas
• High efficacy or vacancy sensor in areas where common space
≤ 20% of floor area
• In common areas that > 20% of floor area, occupancy responsive
adaptive corridor and stairwell lighting is required
Residential Parking
• Lots for < 7 cars must comply with Outdoor Lighting requirements
• Garages for < 7 cars must comply with Garage requirements
• Lots and garages for 8 vehicles or more must comply with
Nonresidential Lighting Standards
High efficacy, by the code
High efficacy, by the code
What is never high efficacy?
•
•
Any luminaire that does not qualify by
Energy Commission definition or is
not certified to the Commission
Any luminaire containing medium
screw-base socket (E24/E26)
•
Any luminaire containing any linevoltage lamp socket (except GU-24
under certain conditions)
•
Track lighting where track heads or
lamps can be changed to a source
other than LED
2013 High Efficacy: LED
Lamp Power
Min. System Efficacy
5W or less
30 lm/W
5W – 15W
45 lm/W
15W – 40W
60 lm/W
Over 40W
90 lm/W
Appendix JA8
•
Joint Appendix JA8 of the 2013 code sets new quality standards
for LED luminaires designed for residential use.
•
To qualify as high efficacy, CRI ≥ 90, and a CCT of 2700K – 4000K
Sources
Two strategies, three main technologies
High-efficacy luminaires are designed and
built to operate only energy-efficient light
sources, such as fluorescent T8 lamps, compact
fluorescent lamps (CFLs), LEDs and high
intensity discharge (HID) lamps.
Controls
Occupancy/vacancy sensors and daylight
sensors are all devices that automatically turn
lights off (or dim them) in response to conditions
that they “sense” or “see.”
Dimmers, which are already common in many
residential applications, allow room occupants
to lower lighting levels (and thus energy use)
as desired.
2013 High Efficacy,
According to the Standards
In the 2013 code: Table 150.0-A and Section 150(k) 1
2013 High Efficacy,
According to the Standards
What is never high efficacy?
•
•
Any luminaire that does not qualify
by Energy Commission definition or
is not certified to the Commission
Any luminaire containing medium
screw-base socket (E24/E26)
•
Any luminaire containing any linevoltage lamp socket (except GU-24
under certain conditions)
•
Track lighting where track heads or
lamps can be changed to a source
other than LED
2013 high efficacy: other sources
Lamp Power
5W or less
30 lm/W
5W – 15W
45 lm/W
15W – 40W
60 lm/W
Over 40W
90 lm/W
Efficacy = initial lumens ÷ luminaire total rated system input power
In the 2013 code: Table 150.0-A and 150.0-B and Section 150(k) 1
Min. System Efficacy
Energy Commission Appliances Database
http://www.appliances.energy.ca.gov/AdvancedSearch.aspx
IES Illuminance Recommendations
Category
Space
Illuminance
A
Public spaces
3 footcandles (30 lux)
B
Simple orientation for short visits
5 footcandles (50 lux)
C
Working spaces where simple
visual tasks are performed
10 footcandles (100 lux)
D
Performance of visual tasks of high
contrast and large size
30 footcandles (300 lux)
E
Performance of visual tasks of high
contrast and small size, or visual
tasks of low contrast and large size
50 footcandles (500 lux)
F
Performance of visual tasks of low
contrast and small size
100 footcandles (1,000 lux)
Performance of visual tasks near
threshold
300 to 1,000 footcandles
(3,000 to 10,000 lux)
G
Examples of Illuminance Levelsv
Category Building Types
A (3fc)
Movie theater, observatory
B (5fc)
Public auditorium, night club, arcade
C (10fc)
Art gallery, restaurant, parking garage, public restroom
D (30fc)
Coliseum/arena, school gymnasium, chapel, grocery store,
commercial building
E (50fc)
School, medical laboratory, computer processing office, vehicle repair
center
F (100fc)
Hospital facilities, veterinary clinic
G (800fc) Operating table
High-Efficacy Luminaires
Typically Compliant
Light Emitting Diodes
•
High-efficacy fixtures with
electronic ballasts
•
Newer technology with a great deal
of confusion
•
Pin-based CFL fixtures with
electronic ballasts (4 pin)
•
Efficacies are improving
•
Quality is not consistent
•
Look for product that clearly meets
lumen/Watt requirements
•
Follow the Design Lights Consortium
Qualified Products List for non-res
product evolution
•
Follow utility rebate program
guidelines for res products
•
Fixtures with high-intensity
discharge (HID) lamps
Not Usually Compliant
•
•
Any fixture with
incandescent lamps
Any fixture with a screw base,
regardless of what source it is
(even CFL or LED!)
Note: Ballast wattage is not included when determining lamp efficacy.
Replacement Lamp Technologies in Use
A
BR
PAR
CFL
LED A*
Wattage
40-100 W
30-150 W
50-150 W
5-40 W
2.3-23 W
Efficacy
10-17 lm/W
7-12 lm/W
6-15 lm/W
50-70 lm/W
33-97 lm/W
Price**
< $1
$4-7
$6-8
$1-8
$10-50
Application
General Lighting
Downlights,
Spotlights
Downlights,
Spotlights
General
Lighting
General
Lighting
*August
17, 21013 Product review of 286 A-lamps listed in the Lighting Facts database
price ranges
**Approximate
Choosing the Right Luminaire
Specify the appropriate
light output
Specify the right
lumens/watt ratio
You should be able to “lumen
match” the low-efficacy fixtures
by specifying systems that use
less
• Warmer lamp colors
(CCT 2700–3000K) are the
closest match to incandescent.
•
•
2013 Update
•
In the 2013 code, in order to
qualify as high efficacy, LED
luminaires must be > 90 CRI
and 2700–4000K (indoor) or
2700–5000K (outdoor)
Depending on what lamp wattage is
chosen (with the same number of
fixtures) you could have a much
brighter space or a much darker
space in comparison to an existing
incandescent space.
For example:
8 (65 watt) BR lamps x 750 lumens
= 7100 lumens
5 (26 watt) CFL lamps x 1300 lumens =
6500 lumens
10 (13 watt) CFL lamps x 600 lumens =
6000 lumens
In the 2008 and 2013 Code:
Recessed Fixtures
Applications between conditioned
and unconditioned spaces
• Approved for IC and label certifying
AT according to ASTM E283
• Gasket or caulking between housing
and ceiling – all air leak paths
through luminaire assembly or
ceiling opening must be sealed
IC applications:
• Ballasts that are rated for higher
operating ranges
• Fixture configurations that limit heat
to the ballast
In the 2008 code: 150 (k)12 and 150 (k)4
In the 2013 code: 150(k)8 and 150(k)1 D
Electronic ballasts
• Certified to the Energy Commission
• Mandated in all high-efficacy
luminaires of 13W or higher
• Output frequency of no less than 20
kHz
Recessed Luminaires in Insulated Ceilings
•
Have a minimum rated life of 30,000
hours when operated at or below a
specified maximum case
temperature
•
Must not exceed maximum ballast
case temperature
•
Have a ballast factor of not less than
0.90 for non-dimming ballasts
•
Have a ballast factor of not less than
0.85 for dimming ballasts
•
Allow ballast maintenance and
replacement from below the ceiling
without cutting holes in ceiling
•
Same in 2008 and 2013
In the 2008 code: 119 (n) and 150 (k)12
In the 2013 code: 110.9 (f) and 150 (k)8
What is a GU-24 replacement lamp?
1. Lead Wire
2. Fixing Hole I
3. Fixing Holes II
4. Base
5. Prongs
6. Replacement Ballast
7. Replacement Lamp
8. Lamp Base
9. Lamp Holder
10.Thread
High Efficacy GU-24 Qualifications
•
Factory-installed GU-24 lamp holder
•
No other types of line voltage sockets in the luminaire
•
Manufacturer does not provide adaptors to convert
other line voltage lamp holder
•
Luminaire rated only for high efficacy systems
•
NO GU-24 low efficacy lamps
•
NO GU-24 low efficacy luminaires
•
NO GU-24 modular adaptors or luminaire conversions
•
Quick-connects to GU-24 are allowed
•
In 2008 code: no recessed downlights with GU-24
sockets that could receive a compact fluorescent lamp
In the 2008 code: 150 (k)2
In the 2013 code: Table 150 A
No “Permanent” Adaptors
If a luminaire has a screw-base socket, or an adaptor with a
screw-base socket, it is NOT high efficacy, regardless of
manufacturer claims.
Fixture Labels for Compliance and Quality
U.S. government-backed label earned
by products that prevent air pollution by
meeting strict energy efficiency
guidelines set by the U.S.
Environmental Protection Agency and
U.S. Department of Energy.
The ENERGY STAR definition of high
efficacy has been updated to match
Title 24 and guarantees a minimum
standard of quality.
There is no way to tell old ENERGY
STAR fixtures from new ones.
Sample qualifications for ENERGY
STAR rated products
• For lamps shipped with the fixtures,
the average rated life of the lamp
must be > 10,000 hours.
• All qualified light fixtures carry a
two-year warranty
•
The CRI of lamps shipped with
fixtures is more than 80 for CFL
lamps and more than 75 for linear
fluorescent lamps.
Airtight Label: ASTM E283
The ASTM E283 label certifies a
fixture as being airtight in
accordance with ASTM E283 testing
and Title 24.
Indoor Vacancy Sensor Specifications
•
Must be manual-on/automatic-off
(can also be turned off manually)
•
Time delay cannot be greater than
30 minutes
•
Cannot be locked in a permanent
“on” state (no “on” override)
•
No more than 1 W consumed by the
indicator light
•
Specify with no minimum load amount
Optional features to consider
•
Energy-efficient LED night-light
•
Impact-resistant lens and switch
In the 2008 code: 119 (j)
In the 2013 code: 110.9 (b) In Title 20: 1605.3 (g) 8
2008 Dimmer Requirements
•
Reduce power consumption by a
minimum of 65% at the lowest level
•
If the dimmer controls incandescent or
fluorescent lamps, provide electrical
outputs to lamps for reduced flicker
•
Be UL listed by a rating lab recognized
by the International Code Council (ICC)
•
For wall box dimmers designed to be
used in a 3 or more-way circuit with
non-dimmable switches, the level set
by the dimmer shall not be overridden
by any of the switches in the circuit.
In the 2008 code: see 119 (k) in regards to power reduction
In the 2013 code: 150 (k)
2008 Dimmer Requirements
•
The dimmer and all of the switches in
the circuit shall have the capability of
turning lighting OFF if it is ON, and
turning lighting ON to the level set by
the dimmer if the lighting is OFF.
•
Stepped dimmers will include an
off position to turn lights
completely off.
In the 2008 code: see 119 (k) in regards to power reduction
In the 2013 code: 150 (k)
2013 Dimmer Requirements
•
Comply with Title 20
•
Very subtle differences in language
•
The dimmer shall:
•
•
Reduce power consumption by a minimum of 65%
percent at its lowest level;
•
Include an off position which produces a zero lumen
output; and not consume more than 1 W per lighting
dimmer switch leg when in the off position.
Same:
•
Reduce flicker through
dimming range
•
For 3-way, do not override level set by dimmer and
all switches should turn light off
In the 2008 code: see 119 (k) in regards to power reduction
In the 2013 code: 150 (k)
In Title 20: 1605.3 (f)
Dimmer Specifications
Specify the correct load amount
•
Line voltage
•
Low voltage
•
3-way dimmers (ex. hallway
applications)
Pair LED luminaires and lamps
carefully with dimmers, check
manufacturer websites and spec
sheets for compatibility
In the 2008 code: see 119 (k) in regards to power reduction
In the 2013 code: 150 (k)
Permanently Installed Night Lights
•
Shall contain only high-efficacy lamps
with no line voltage lamp holder
•
Shall consume no more than
5 watts
•
No screw-base lamp holders
•
Indicator lights that are integral to
lighting controls shall consume no more
than 1 watt
•
Also applies to night-lights integral to
permanently installed luminaires or
exhaust fans
In the 2008 code: 150 (k) 5
In the 2013 code: 150 (k) E
2008 and 2013 Kitchen:
Mandatory Requirements
Wattage
• No limit to number of watts, but
must be at least 50% high efficacy
•
•
Quantity of fixtures is not regulated
by code
If a fixture can accept multiple lamp
wattages, its wattage for the sake
of code compliance is the highest
re-lamping rated wattage
designated by the manufacturer on
a permanent, factory-installed
Underwriters Laboratory label
In the 2008 code: 150(k) 8
In the 2013 code: 150(k) 3
Lighting Controls
• High-efficacy and low-efficacy light
fixtures must be controlled
separately
•
Nook lighting must be on a
separate switch in order to be
counted as an “other space” and
not part of the kitchen
•
Recommended to separately
switch different layers of the
kitchen lighting
2008 Kitchen:
Additional Low-Efficacy Wattage
Additional low-efficacy wattage “bonuses”
•
Up to 50 watts per dwelling in units < 2,500 sq. ft.
•
Up to 100 watts per dwelling in units > 2,500 sq. ft.
The bonuses are available if the following conditions are met:
•
In kitchens, all low-efficacy luminaires must be controlled by a vacancy sensor, dimmer,
EMCS, or multi-scene programmable control,
and
•
in garages, laundry rooms, closets over 70 square feet, and utility rooms, all luminaires
must be high efficacy and employ vacancy sensors.
In the 2008 code: 150(k) 8
2013 Kitchen:
Additional Low-Efficacy Wattage
Additional low-efficacy wattage “bonuses”
•
Up to 50 watts per dwelling in units < 2,500 sq. ft.
•
Up to 100 watts per dwelling in units > 2,500 sq. ft.
The bonuses are available if the following conditions are met:
All lighting in the kitchen is controlled in accordance with the applicable provisions in
Section 150.0(k)2, and is also controlled by vacancy sensors or dimmers.
In 2013 the code: 150(k) 2
Special Circumstances
Appliances
Lighting that is part of an appliance is not
regulated by the code
•
Blank Electrical Boxes
Calculated and treated as 180 watts of lowefficacy lighting
•
Internal Cabinet Lighting
Not considered part of the kitchen lighting for
calculating 50%
• No more than 20W per linear foot of illuminated
cabinet
• Lighting installed inside a cabinet may only be
used to illuminate the inside of the cabinet
•
In the 2008 code: 119 (j)
In the 2013 code: 110.9 (b) In Title 20: 1605.3 (g) 8
Cabinets: Measurement Methods for 2013
The length of an illuminated cabinet shall
be determined using one of the following
measurements, regardless of the number
of shelves or the number of doors per
cabinet section:
A.
One horizontal length of illuminated cabinet; or
B.
One vertical length, per illuminated
cabinet section; or
C.
No more than one vertical length per every
40 horizontal inches of illuminated cabinet.
In 2013 the code: 150(k) 4
Cabinets: Measurement Methods for 2013
The length of an illuminated
cabinet shall be determined using
one of the following
measurements, regardless of the
number of shelves or the number
of doors per cabinet section:
C.
No more than one vertical
length per every 40 horizontal
inches of illuminated cabinet.
In 2013 the code: 150(k) 4
Kitchen: Sample Floor Plan and Calculation
298 Square Feet
2008 Bathrooms, Garages, Laundry Rooms,
Closets, and Utility Rooms: Requirements
Lighting
High efficacy or controlled with a
vacancy sensor
Controls
The first switch does not need to be a
fluorescent light fixture.
High-efficacy and low-efficacy light
fixtures must be controlled separately.
Quantity
The quantity of light fixtures is not
regulated by the code.
In the code: see 150(k) 10
Vacancy Sensor
• Vacancy sensors must be manual
on/off and automatic off
• Sensors cannot have an override
allowing the light fixture to be
continuously on
• The maximum time delay to turn
off is 30 minutes after the last
detected motion
• Closets < 70 sq ft are exempt from
controls requirement
2013 Bathrooms
Lighting
At least one luminaire has to be
high efficacy
Controls
All other lighting installed in each
bathroom shall be high efficacy or
controlled by vacancy sensors.
Quantity
The quantity of luminaires is not
regulated by the code.
(for all of the residence)
In the 2013 code: see 150(k) 5
2013 Bathrooms, Garages, Laundry Rooms,
Closets, and Utility Rooms: Requirements
Lighting & Controls
All lighting must be high efficacy, and
shall be controlled by either dimmers
or vacancy sensors.
In the 2013 code: see 150(k) 6
Exceptions
• Closets less than 70 sq ft
• Detached storage buildings less
than 1,000 square feet located on
a residential site
Kitchen: Sample Floor Plan and Calculation
228 Square Feet
2008 and 2013 Bedrooms
•
High efficacy, vacancy sensor, or
dimmer
•
Switched outlets (half-hots) do not
require special controls
•
High-efficacy and low-efficacy light
fixtures must be controlled separately
•
•
Vacancy sensors must be manual
on/off and automatic off
Ceiling fans with incandescent light kits
need one switch for the fan and one
dimmer/vacancy sensor for the lights.
•
High-efficacy: only one switch is
needed, two are shown for flexibility
In the 2008 code: see 150(k) 7 and 11
In the 2013 code: see 150(k) 7
2008 and 2013 Living and Dining Rooms
•
High efficacy, vacancy sensor, or dimmer
•
Switched outlets (half-hots) do not require special controls
•
Decorative option: use incandescent fixtures and dimmer(s)
•
Ceiling fans with low-efficacy light kits need one switch for the fan
and one dimmer/vacancy sensor for the lights (with high-efficacy
kits, only one switch is needed)
2008 and 2103 Attics and Enclosed Patios
Attic
• If an vacancy sensor cannot “see”
the entire attic, the occupant could
be left in the dark
•
High efficacy, dimmer or
vacancy sensor
•
Sensors must be manual on/off
and automatic off
Enclosed Patio
• An enclosed (unconditioned) patio
is considered an “other space”
•
High-efficacy and low-efficacy light
fixtures MUST be controlled
separately
•
High efficacy, or include a dimmer
or vacancy sensor
2008 and 2013 Hallways
High efficacy, vacancy sensor or dimmer
• Vacancy sensors must view the entire space (this application
may require three-way switching as shown)
•
2008 and 2013
Outdoor Lighting: Requirements
•
•
•
•
•
Do not apply to landscape lighting that is
not attached to the building, residential
parking lots, or garages for eight or more
vehicles
Must be high-efficacy, or controlled by a
manual on/off switch, motion sensor, and
a method automatically turn off lights
during daytime
Low-efficacy outdoor luminaires may
have a temporary override switch which
bypasses the motion sensing function for
up to six hours provided that the override
switch automatically reactivates the
motion sensor
Outdoor luminaires in or around
swimming pools or water features are
exempt from Title 24
A manual off/on switch (no override to on)
•
Must have automatic on/off operation
and photocells to keep lights off during
daylight hours
•
Must comply with the maximum
30-minute shut-off requirement
•
Must view the space that it illuminates
Override Switch
Low-efficacy outdoor luminaires may have a
temporary override switch which bypasses
the motion sensing function for up to six
hours, provided that the override switch
automatically reactivates the motion sensor.
Front Porch Lighting Plan
•
LEDs are ideal for cold outdoor environment, as CFLs often are not
compatible with cold temperatures.
•
LEDs’ lifespan is significantly longer than other lamp sources, requiring less
maintenance.
•
Although not required by the standards when using a high-efficacy fixture,
including a motion sensor will provide light to occupants upon entering the
space when no immediate access to a switch is available.
•
For outdoor areas close to bedroom windows, high-efficacy luminaires are
preferred over low-efficacy luminaires with motion sensors that may be
triggered in the middle of the night.
Front Porch Lighting Plan
•
Provide adequate lighting to support the function of the space and specific tasks
performed within it.
•
Although not required by the standards when using a high-efficacy fixture, including a
motion sensor (as shown) will provide light to occupants where there is not immediate
access to a switch in a transitional space.
•
Motion sensor coverage should not be too large, or lights will be triggered by street traffic
or a neighbor’s motion. Most sensors have a sensitivity control to adjust the degree of
motion and light that triggers them.
•
In addition to the motion sensor and one of the three other lighting control options, the
owner also must be provided with a manual on/off switch for low-efficacy luminaires.
2008 Internally Illuminated Address Signs
Cannot exceed 12 watts per sq. ft. internal illumination
Cannot exceed 2.3 watts per sq. ft. external illumination
•
•
Alternatives when equipped only with one or more of the light sources
•
•
•
•
High-pressure sodium
Metal halide lamps (with minimum efficiency)
Neon or cold cathode lamps (with minimum
efficiency)
Fluorescent lamps (with a minimum CRI)
In the 2008 code: see 150(k) 14
•
•
•
LEDs (with minimum efficiency)
Compact fluorescent lamps
(not with screw-base socket)
Electronic ballasts (minimum 20 kHz)
2008 Internally Illuminated Address Signs
Consume no more than 5 watts of power
OR
Comply with the nonresidential sign lighting Standards in §140.8:
•
•
Cannot exceed 12 watts per sq. ft. internal illumination
Cannot exceed 2.3 watts per sq. ft. external illumination
Alternatives when equipped only with one or more of the light sources
•
•
•
•
•
•
•
High-pressure sodium
Metal halide lamps (with minimum efficiency)
Neon or cold cathode lamps (with minimum efficiency)
Fluorescent lamps (with a minimum 80 CRI) + Electronic ballasts (minimum 20 kHz)
Compact fluorescent lamps with no screw-base sockets
LEDs (with minimum efficiency)
In the 2008 code: see 150(k) 14
2008 Low-rise Multi-family Common Areas
A multi-family complex consists of four
or more dwelling units. A low-rise is
considered a building with three or fewer
stories.
•
All hardwired lighting must be high efficacy or
controlled by a occupant sensor
•
The occupant sensor must be directly on the
walkway and/or view the entire space
If the building has more than three stories
the common areas must comply with the
nonresidential code.
In the 2008 code: see 150(k) 16
2008 Low-rise Multi-family Common Areas
•
In buildings where common areas
constitute > 20% of the floor space:
•
Lighting must comply with the
nonresidential standards
•
Lighting in corridors and stairwells must
be controlled by occupancy sensors that
reduce lighting power by at least 50%
In buildings with common areas that
are ≤ 20% of the floor space:
•
All hardwired lighting must be
high efficacy or controlled by an
occupancy sensor
Credit: The Hanover Co.
In the 2008 code: see 150(k) 16
2008 Parking Lots and Garages
Residential Lots and Garages
• Residential standards apply to parking
lots, carports and parking garages
(attached and detached from dwelling
unit) for seven or fewer vehicles per
site
•
•
Parking lots and carports must meet the
residential outdoor lighting
requirements
Parking garages must meet the
residential indoor lighting
requirements: high efficacy or
controlled by a manual-on occupant
sensor
In the 2008 code: see 150(k) 11
Non-residential Lots and Garages
• Non-residential standards apply to
parking lots, carports and parking
garages (attached and detached from
dwelling unit) for eight or more
vehicles
•
Must meet the lighting requirements for
non-residential buildings
•
Must meet the power density limits for
non-residential lighting standards
•
Light fixtures must be controlled by a
photocontrol or time switch that turns
lights off when daylight is present
•
Fixtures with lamps rated over 175 watts
are designated as “cutoff,” limiting light
emitted upwards
•
Uniform lighting is desired to help
eliminate shadows in corners and
provide a sense of safety
2013 Parking Lots and Garages
Residential Lots and Garages
• Residential standards apply to parking
lots, carports and parking garages
(attached and detached from dwelling
unit) for seven or fewer vehicles per site
•
•
Parking lots and carports must meet the
residential outdoor lighting requirements
or the non-res requirements
Parking garages must meet the
residential indoor lighting requirements:
high efficacy and controlled by a
vacancy sensor
In the 2013 code: see 150(k) 6
Non-resential Lots and Garages
• Non-residential standards apply to
parking lots, carports and parking
garages (attached and detached from
dwelling unit) for eight or more
vehicles
•
Must meet the power density limits for
non-residential lighting standards
•
Light fixtures must be controlled by a
photocontrol or time switch that turns
lights off when daylight is present
•
New construction or major alterations
are required to comply with Backlight,
Uplight, Glare ratings per IES TM-15-11
•
Pole mounted luminaire > 75W and
< 24 ft must include motion sensors that
reduce lighting levels on vacancy.
•
Other conditions apply, see sections:
110.9, 130.0, 130.2, 130.4, 140.7 &
141.0
Resources
For more information:
California Energy Commission: Building Efficiency Standards
http://www.energy.ca.gov/title24/2013standards/index.html
California Energy Commission: 2013 Nonresidential Compliance Manual
http://www.energy.ca.gov/2013publications/CEC-400-2013-002/CEC-400-2013002-SD.pdf
California Lighting Technology Center, UC Davis
http://cltc.ucdavis.edu/title24