Efficient Residential Lighting Clients Love!!!

Transcription

1 Efficient Residential Lighting Clients Love!!! James R Benya, PE, FIES, FIALD BENYA LIGHTING DESIGN West Linn, OR USA Naomi Johnson Miller, FIES, FIALD PACIFIC NORTHWEST NATIONAL LABORATORY Portland, OR USA

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

3 Learning Objectives By the end of this program, participants will be able to: Be aware of how much energy is used by residential home lighting, and where the opportunities for saving are Discuss LED, fluorescent, and even halogen options that can reduce your lighting energy use. Discuss controls that will automatically shut off unneeded lighting. Understand where to locate fixtures for best function and appearance. Become aware of color metrics and photometry of LED products that will help you get the color and performance you want.

4 Course Evaluations In order to maintain high-quality learning experiences, please access the evaluation for this course by logging into CES Discovery and clicking on the Course Evaluation link on the left side of the page.

5 Lighting Design Basics Look good! Provide the proper amount of light in every room. Be built and constructed within budget, code, and other constraints. Respond to the architecture and/or interior design and/or landscape design Produce good color Achieve the desired moods of each space Be able to control the lights

6 High quality residential lighting Began in the 1970 s Low voltage lighting for drama and accent Glare control and better downlighting Dimming and preset scene controls Integration of layers of light including traditional sources All halogen and incandescent lamps Classic a period in time

7 Lighting Design Award Winners GE Edison Excellence Award for Residential Lighting, UNEXPECTED DISCOVERY, Witte/Ayotte Light Photo Deborah Witte GE Edison Excellence Award for Residential Lighting, CARRIBEAN ESTATE, Sean O Connor Associates Photos Peter Aaron/ESTO

8 Modern vs. Classic Classic Into and often through the 90 s More is more Warmth and comfort Superior color Ease of control Willing to show off Modern From the 90 s onward Less is more Warm and comfort Very good color Ease of control with better control Grace without waste

9 Classic Incandescent

10 Classic Halogen

11 Classic Sources Color and Dimming Warm, full spectrum Dimmable Warm color shift when dimmed Smooth dimming Flexibility and Size Diffuse lamps Linear lamps Spots and floods Pin spots Low voltage 120 volt, 220 volt, 12 volt, and other Correlation between watts and lumens

12 Modern Fluorescent Lamps T8 and T5 Linear Lamps Highest efficiency ( lumens per watt) Dimmable with the right ballast Best applications: kitchens, bathrooms, garages, utility Drawbacks Long lamps need long fixtures Too much light for some spaces Technology hard to get, harder to use and understand Important Notes Use 2700K or 3000K lamps in most interior applications. 3500K is good for work rooms, closets and garages. Two wire dimming ballasts solve many control problems. Don t use where a lot of light is NOT needed.

13 Modern Fluorescent Lamps Pin Based Compact Lamps High lumens per watt (40-70) from 5 to 80 watts Some are dimmable Best applications:, bathrooms, exteriors, ceiling fixtures, lanterns Drawbacks Dedicated CFL fixtures hard to find or expensive Dimming color shift Harder to find and to understand than T5 or T8

14 Modern Fluorescent Lamps Screw-based self ballasted compact fluorescent lamps High lumens per watt (40-60) Some are dimmable Best applications:, bathrooms, exteriors, ceiling fixtures, lanterns Drawbacks What can screw in can screw out Warm up time Color ranges from good to horrid, especially when dimmed

15 Modern Fluorescent Lamps GU-24 A clever system to integrate evolving efficient lighting into old school wiring

16 Classic Control Systems Dimmers Kitchens, dining rooms, bedrooms, hallways, foyers Car or motion activated path of light Whole house preset scenes Evening Landscape Go to Bed Panic

17 Modern Controls Astronomical/clock timers Outdoor lanterns Daylight/motion sensors Outdoor security lighting Motion sensors Bathrooms, closets, garages, utility rooms Shading system controls Home theater controls Energy management controls

18 Classic/Modern MR16 A relatively inefficient source But the light quality is superior Used widely Accent lighting in living spaces, especially art Downlighting in hallways Reading lights in bedrooms Spot lighting tables and displays

19 MR16 Lighting Designer s Paintbrush Fluorescent can t do this. LED just learned how.

20 LED cove with Traditional Lighting

21 Fluorescent cove with MR16 accent lighting

22 Layered Design Principles Ambient Lighting Task Lighting Accent Lighting Decorative Lighting

23 Classic tungsten layered design

24 Classic Tungsten Layered Design Ceiling accents Ceiling uplights Wall sconces Art wall washing Portable lamps

25 Classic Tungsten Layered Design Ceiling accents Ceiling cove Wall grazing Built in niche lighting Portable lamp

26 Not all tungsten layers

27 Can LED Become Classic?

28 EFFICIENT LIGHTING CLIENTS REALLY LOVE!! Better Buildings by Design 2011 Burlington VT Naomi Miller, FIES, FIALD, LC Pacific Northwest National Laboratory

29 LEDs in the Home What halogen does best Narrow beam accent lighting Flattering color for skin tones Dimmable (and cheap) lighting Optical precision (such as framing projectors) What linear fluorescent does best Kitchen lighting Bath area diffuse lighting Indirect lighting Shop areas/laundry room What compact fluorescent does best Um. It s cheap. And sort of efficient for some lighting types.

30 Advantages of LEDs LEDs in the Home Long life (25K to 50K hours) Energy savings 70% compared to halogen 0-50% compared to CFL and linear fluorescent Color change option Small size Less light (YES, that can be an advantage!) Whiz-bang nifty cool factor

31 What LEDs do best LEDs in the Home Replacement lamps in track lights, recessed downlights (PAR, MR) Dedicated track-mounted accent lighting Dedicated LED recessed downlights

32 What LEDs do best LEDs in the Home A-lamp replacements Candelabra lamp replacements

33 LEDs in the Home What LEDs do best Linear strips for coves, undercabinet, in-cabinet display lighting strips Undercabinet puck lights

34 Learn the Lingo of LEDs

35 LEDs in the Home What LEDs do best Picture lighting Portable desk lighting Step lighting and marker lighting Nightlighting (red or amber)

36 LEDs in the Home What LEDs do that s fun Color change Fireflies Holiday lighting

37 LEDs in the Home What LEDs do that s fun Color change Fireflies Holiday lighting

38 What LEDs do best LEDs in the Home Landscape lighting Path lighting/step lighting Uplight/downlight Security/door lighting Handrail lighting

39 What LEDs do best LEDs in the Home Landscape lighting Path lighting Uplight/downlight Security/door lighting Handrail lighting

40 Disadvantages LEDs in the Home Sometimes poor color 5000K products too cool for residential use Even warm-white LEDs can be poor in red tones Costly Color consistency Limited range of lumen packages and beam spreads High-brightness LEDs can be glaring if not well shielded Possible flicker, especially if dimmed Availability down the road Snake oil and hype..

41 Technical issues LEDs in the Home Heat sinking Drivers Dimmability and Dimming Compatibility ELV, MLV, Triac, 0-10V, other Minimum load on control Dimming often introduces flicker Remote-driver products don t use conventional wiring techniques LM-79 reports Enclosed luminaires Learn to read LM-79 reports and learn the lingo: Lumens, not Watts, for light output CCT and CRI Lighting Facts and CALiPER

42 How to start using LEDs See it before you buy it or specify it. See two or three. Look for color, lumens, Wattage information on spec sheet Verify performance with CALiPER on DOE website Evaluate the color, light output, appearance, glare, flicker in person Identify areas where lights stay on many hours. These are where you ll get the savings. Identify hard-to-reach areas. These are where the long life is a benefit. Look for areas where dimming is not necessary, or do extra homework to check compatibility with controls. If using remote driver products, locate drivers in accessible and cool places.

43 How to start using LEDs Get wiring diagrams on all remote driver products. Review with the electrician before installing Specify products from companies you know or whom you trust, or that have a documented support history For large jobs, get a written warranty that includes light output and color variation Start slowly. Use a few. Try them out and find the brands you like and trust. Then use a few more. Energy paybacks vary widely on local electric rates and hours of use and cost of product. Paybacks range from 3 to 20 years.

44 LEDs: If you do a good job, clients will really love them!

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47 If you want to know more Main DOE website: DOE s Commercially Available LED Product Evaluation and Reporting program (CALiPER): Look for the Lighting Facts : ENERGY STAR : IESNA Standards and Guidelines:

48 Efficient residential lighting clients will really love!