Lighting Research Program

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Lighting Research Program

• Product Highlights
• March 2, 2004
• Funded by California Energy Commission's
• Public Interest Energy Research (PIER) Program

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What Is the Lighting Research Program?

• THE LRP IS
• a two-year 5.2 million RD program focused on
  developing and introducing new energy-efficient
  lighting technologies into the marketplace.
• a set of diverse projects that includes 15
  technical and three market connection projects.
• a unique program sponsored by the California
  Energy Commission, which engages numerous
  researchers and manufacturers, and is managed by
  Architectural Energy Corporation.

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What Is the Value of the LRP?

• For California citizens, the LRP provides the
  opportunity to
• reduce peak electricity demand and energy use.
• integrate research with market connection
  activities.
• leverage expertise and co-funding from lighting
  manufacturers.
• minimize pollution throughout California.

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Why Fund a Lighting RD Program?

• LOTS OF REASONS
• To address the widespread use of inefficient
  lighting sources in residential and commercial
  applications.
• To focus attention on the successful application
  and impact of energy-efficient lighting.
• To encourage coordination and collaboration among
  researchers and manufacturers.
• To provide a forum to develop and evaluate
  technology opportunities.

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Technology Elements of the LRP
LUMINAIRES SYSTEMS
DEMAND RESPONSE
ADVANCED TECHNOLOGIES
TESTS STANDARDS
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LRP Featured Products

• Bi-Level Stairwell Fixture with Occupancy Sensor
• Hotel Bathroom Lighting Control System (LCS)
• Integrated High-Efficiency Lighting Systems
• Retrofit Energy Efficient Downlights

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Bi-Level Stairwell Fixture
Product Line of Bi-Level Fluorescent Fixtures
with an integrated ultra-sonic motion sensor that
dims lamps to save energy when stairwells are
unoccupied.
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Bi-Level Stairwell Fixture
Benefits of Technology
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Bi-Level Stairwell Fixture

• Accomplishments To Date
• IFMA/LBNL team
• Recruited four test sites.
• Researched NYSERDA work.
• Worked with LaMar.
• California test sites
• Three installed.
• One more underway.

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Bi-Level Stairwell Fixture

• Code Issues
• Low power level provides the minimum 1 fc at each
  site as required by code. Full output level
  provides around 3 fc.
• ANSI recommendation to increase national
  requirement to 10 fc is on the horizon. Local
  code adoption may follow.
• Electrical permits and Fire Marshall approval is
  required in some local jurisdictions.

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Bi-Level Stairwell Fixture

• Initial feedback from first two test sites
• Chiron Campus Building M (tour afterwards)
• Replaced circlines that provided inconsistent
  light levels ranging from .08 to 20 fc in their
  stairwells.
• Evans Hall at UC Berkeley
• Replaced 40-watt T-12, 2-lamp fixtures.
• Estimated savings is 50 to 80 percent of the
  original stairwell lighting use. Occupancy
  stairwell usage and energy use data collection is
  ongoing.
• Both facility managers seemed pleased with the
  installation and lighting levels.

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Bi-Level Stairwell Fixture

• Economics
• IOU yearly energy savings (.155/kWh)
• 2-lamp--50-100 1-lamp--25-50 per fixture.
• New buildings 1-3 yr paybacks.
• Retrofit 3-7 years.
• MUD yearly energy savings (.105/kWh)
• 2-lamp--30-70 1-lamp--16-33 per fixture.
• New buildings 3-6 yr paybacks.
• Retrofit 3-8 years.

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Bi-Level Stairwell Fixture

• Product is commercially available from LaMar
  Lighting.
• Incentives may be available from utility under
  the Express Efficiency Program.
• LaMar is offering special CA pricing.
• Facility managers may want to revisit stairwell
  light levels.
• LRP team will continue to gather data at the four
  test sites and publish the results in summer
  2004.

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Bathroom Lighting Control System
Product A customized hotel guestroom occupancy
sensor with built-in LED nightlight.

• Built-in nightlight illuminates room whenever
  overhead lights are off.
• Energy efficient, super-bright LED.
• Designed for hotel rooms and semi-public spaces.
• Adjustable time delay from 15 minutes to 2 hours.

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Bathroom Lighting Control System
Demonstration at the Sacramento DoubleTree

• LBNL developed the product and performed the
  pre-and post- monitoring for 15 rooms.
• The Watt Stopper Inc. manufactured the product
  and provided technical support.
• DoubleTree staff installed the LCS in more than
  400 guestroom bathrooms.
• PIER LRP and SMUD provided funding.

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Bathroom Lighting Control System
Results from Demonstration at the DoubleTree
Bathroom lights were left on after the guests
left the room
Percentage of Lamps on
Time of day
Source Lawrence Berkeley National Labs
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Bathroom Lighting Control System
Results from Demonstration at the DoubleTree
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Bathroom Lighting Control System
Results from Demonstration at the DoubleTree
On average, the sensors reduced overall energy
consumption by 50!
Source Lawrence Berkeley National Labs
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Bathroom Lighting Control System
Results from Demonstration at the DoubleTree

• Total energy savings just under 50.
• Most of the savings resulted from the elimination
  of infrequent, but energy intensive, long usage
  periods (gt 4 hrs on).
• Simple payback dependent on retrofit, but can be
  substantial.
• Rebates available from utilities under Express
  Efficiency Program.
• Very positive occupant feedback on nightlight
  feature.

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Bathroom Lighting Control System

Less than 2 year SPB possible!
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Bathroom Lighting Control System

• The Watt Stopper has fully commercialized the
  product (WN-100).
• LBNL awarded the 2003 Flex Your Power Energy
  Efficiency Award for the nightlight sensor
  efforts.
• Other California utilities (including SCE and
  PGE) are currently considering demos in their
  regions.
• LBNL soon will initiate Phase 2 Bathroom Smart
  Fixture in cooperation with Lithonia Lighting.

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Integrated Lighting System
Product A high-performance lighting system with
integrated sensors and controls for classrooms
and training facilities.

• Basic Option
• Direct/indirect Fixtures with super T8 lamps.
• Uses 96 reflective material to improve fixture
  efficiency.
• Two rows of fixtures for maximum savings.
• Manually switched rows for daylighting control.
• Ballast factor managed to maximize savings with
  two rows.
• One source for layout, pricing, and warranty.

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Integrated Lighting System

• Better and Best Options
• Dimming with teacher/instructor control switch
  to lower light levels (5 fc) for audio/visual
  (A/V) presentations.
• Addition of photosensors to provide automatic
  daylight control.
• Third row of fixtures added for better
  uniformity on desks, ceilings, and walls.
• Ballast factor managed to maximize savings with
  three rows.

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Integrated Lighting System

• Switch Up general classroom mode.
• Switch Down A/V or reading mode.
• Switch in the front of classroom
• Easy to use.
• NOTE All 3 lamps can not be on at the
• same time.

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Integrated Lighting System
General Up Light Mode
Audio Visual Mode
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Integrated Lighting System

• A total of nineteen test classrooms and one
  office meeting room have been installed in
  California and monitoring is underway.

Energy Use Before 1.75 watts / sq foot
After 0.85 watts / sq foot
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Integrated Lighting System

• Initial Feedback from Test Sites
• Energy Usage .85 watts / sq foot or
  approximately one-half the energy of the control
  classroom.
• Desk-level lighting 35 fc in the far corners to
  90 fc under the fixtures.
• Vertical foot candles at 4 above the floor 20 -
  35 foot candles for the 2-row rooms and 26 - 36
  foot candles for the 3-row rooms.
• Instructors said they liked the "calming feeling"
  of the indirect/direct lighting. Most use the
  downlight mode ( one hour per day).

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Integrated Lighting System

• Economics
• The installed cost (2.71/sqft) for a two row
  system is less than a typical layout of 15
  Parabolic Troffers (2.86/sqft).
• The best system (3 rows with A/V) is
  approximately 3.81/sqft.
• The system pays for itself, by delivering
• Reasonable first cost and lower energy usage.
• Better quality lighting and more user control.
• Flexibility with different options and one stop
  shopping for integrated system.

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Integrated Lighting System

• Finelite Inc. manufacturers and warranties the
  system.
• The Watt Stopper provides the occupancy sensor
  and the photosensor to Finelite.
• Osram works with Finelite to provide warranty and
  service.
• Low voltage wiring option to support retrofit
  installations.
• The project team is communicating with the CHPS
  program for school designs and the state
  architects office.

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Retrofit Energy Efficient Downlights
Product An energy efficient plug and play
downlighting system using CFLs. Expected
Applications Commercial, residential, and
institutional buildings - retrofit applications.
LRP Partners LBNL, Lithonia Lighting, and SMUD.
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Retrofit Energy Efficient Downlights

• Highlights
• Builds off an existing product developed through
  PIER for downlighting in new residential
  construction.
• LBNL is working closely with end users and the
  manufacturer to evolve the low cost system.
• Product is easy to install where access is
  limited.
• The system saves on labor cost and reduces energy
  costs.

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Retrofit Energy Efficient Downlights

• System approach to optimize performance and
  minimize cost
• Two-lamp ballast cuts ballast costs in half.
• Simplified materials with optical heads instead
  of individual fixtures.
• Photometrically superior light output
• High-quality, high-output electronically
  ballasted CFL.
• High-efficiency, low-glare reflector optics.

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Retrofit Energy Efficient Downlights

• Builder friendly to reduce installation labor
  costs
• Plug and play wiring greatly reduces number of
  costly wire-nut connections.
• Quick, simplified and flexible optical head
  mounting.
• Thermal protected electronic ballasting to ensure
  reliability.
• Ballasting placed in locations that can be
  thermally optimized.

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Retrofit Energy Efficient Downlights
Single modular unit. Two downlights with a
visible cover plate over ballast on room side.
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Retrofit Energy Efficient Downlights
Double modular unit. Four downlights with a
visible cover plate over ballast on room side.
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Retrofit Energy Efficient Downlights
No visible cover plate is required for the
system. The unit consists of a conventional
downlight pan with a remote downlight.
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Retrofit Energy Efficient Downlights

• Achievements To Date
• Product installed in 40 homes in the Sacramento
  area.
• The installations have shown labor savings and
  contractor acceptance, particularly in
  multi-story dwellings where access is limited.
• Commercial and residential retrofit product focus
  of current PIER LRP work.
• SMUD helping to recruit more test sites.

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Lighting Research Program

• Information on the LRP products is available in
  the PIER LRP packets and on the following web
  site
• www.archenergy.com/lrp