Lighting Your Way to Energy Retrofits

Transcription

1 Lighting Your Way to Energy Retrofits A brief overview of lighting and lighting technologies. Ben Fox Associate Project Manager NYSERDA

2 Presentation Overview Brief introduction Brief overview of NYSERDA Lighting Basics Lighting Technologies Lighting audits and calculations Case Studies: Lighting only prescriptive incentives Lighting and Controls performance based incentives Deep energy retrofit lighting shortens the payback of the entire project Conclusion and Q&A

3 What is NYSERDA? Public benefit corporation Established by the New York State Legislature in 1975 NYSERDA is tasked to address the State s energy & environmental challenges Mission Use innovation and technology to solve some of New York s most difficult energy and environmental problems in ways that improve the State s economy Information and Resources Audits Capital incentives

4 Sources of Funding - Systems Benefit Charge (SBC) - Energy Efficiency Portfolio Standard (EEPS) - Renewable Portfolio Standard (RPS) - Regional Greenhouse Gas Initiative Funds (RGGI) - American Recovery and Reinvestment Act (ARRA) K12Schools@nyserda.org

5 Definitions Technologies Lamps Fixtures What to look for Lighting Basics

6 Lighting Basics: Illumination Levels Lumen = amount of light generated at the source Initial lumens Maintained lumens long term lumens Lumen depreciation = Maintained lumens /Initial lumens Lumens vary as a function of: Light source Run hours of lamp Temperature Footcandle = amount of light on task area K12Schools@nyserda.org

7 Lighting Basics: Foot-candles (Fc) Libraries Lounge and Waiting Areas Educational Facilities white boards 5* Chalk boards 50* Desktop Science labs Restrooms Shop Areas Rough to medium bench/machine work Storage Areas Food Service Facilities Food preparation task areas Gymnasiums General 30 Competition and events Average Horizontal Recommended Maintained Fc Providing high quality lighting allows the use of the lower end of the acceptable illuminance ranges

8 Lighting Basics: Color Temperature (CCT) Why its called color temperature? If iron were heated to various temperatures it would produce the following appearances: Arranged cooler to warmer 8,500 o K (14,841 o F)- northern blue sky 6,000 o K (10,341 o F)- white 3,000 o K (4,846 o F)- yellow-white 1,360 o K (2,000 o F)- bright red 900 o K (1,160 o F)- dull red K12Schools@nyserda.org

9 Lighting Basics: Color Temperature (CCT) Higher Color Temperature Cooler More Blue Lower Color Temperature Warmer More red

10 Lighting Basics: Color Rendering Index (CRI) The term Color Rendering describes the ability of an artificial light source to render colors accurately (as rendered by sunlight). The Color Rendering Index (CRI) is a rating from 1 to 100 that quantifies the effect that a light source has on colors (100 being the best). K12Schools@nyserda.org

11 Lighting Basics: Lighting Metrics Watts - measures electrical power (input) The lower the wattage the less energy used Lumens - is the light output of a lamp or an entire fixture The higher the number the more light is emitted Efficacy = lumens / Watts The higher the number the more efficacious the product

12 Lighting Basics: LPA and LPD LPA: Lighting power allowance The maximum allowed installed wattage dedicated to lighting for a given area LPD: Lighting power density Total wattage dedicated to lighting divided by the total area Energy Code LPD Power allowed to reach recommended light levels, regardless of technology To comply with code, the installed lighting power density must be less than or equal to the LPD listed in the code for the space or building type K12Schools@nyserda.org

13 Lighting Technologies

14 Lighting Technologies: Incandescents The oldest electric lighting technology How it works: A filament is heated by electric current until it glows The phase-out of incandescent light is to begin with the 100-watt bulb in 2012 and end in 2014 with the 40- watt Lamp Types: A19, Par 38, R30, MR-16 K12Schools@nyserda.org

15 Lighting Technologies: Linear Fluorescent There are three main types of linear fluorescent lamps: T12, T8, T5 How it works: An electric arc excites mercury atoms emitting UV radiation. The UV radiation strikes the phosphor coating and emits visible light.

16 Lighting Tech: Linear Fluorescent T What? The T Represents Lamp Shape Tubular. The Number Following Represents Lamp Diameter in Eighths of an Inch. A T5 Has a Diameter of 5/8. A T5 Has Miniature Bi-Pin Bases While T8 and T12 Lamps Use Medium Bi-pin Bases. K12Schools@nyserda.org

17 Lighting Technologies: Compact Fluorescent Twin and quad-tube preheat (5-28 W) 2 pins with starter in base (blink on) Twin, quad and hex-tube rapid start (5-50 W) 4 pins, nearly instant on, dimmable Screw-base (7-38 W) Integral and modular Preheat and electronic ballasts Some are dimmable

18 Lighting Tech: High Intensity Discharge (HID) Types Mercury Vapor Metal Halide Commonly used in industrial facilities, sports areas, other areas where good color rendition is required High Pressure Sodium Higher efficacy than metal halide lamps Produces a light golden color Commonly used for outdoor applications and such as parking lots, but seen in industrial facilities and large gymnasiums Low Pressure Sodium Has the highest efficacy of any commercially available HID Poorest color rendition of all lamp types Produces a pumpkin orange color K12Schools@nyserda.org Mercury Vapor Metal Halide High Pressure Sodium Low Pressure Sodium

19 Lighting Tech: Lighting Emitting Diodes (LEDs) Good replacements Refrigerator case lights Display case lighting Track and mono-point directional Garage, canopy, outdoor lighting Down lighting Bad replacements Replacement tubes References: DesignLights, ENERGY STAR, CALiPER

20 Summary CCT and CRI Technology CRI CCT ( o K) Natural Daylight Mercury vapor Metal halide Fluorescent Incandescent Color improved HPS Low pressure sodium LED Induction K12Schools@nyserda.org

21 Summary Source Efficacies Lamp Family Lamp Type Watts Efficacy Incandescent Incandescent 3-1, CFL Screw Base Linear Fluorescent T T8HP T Metal Halide Standard Probestart 50-1, High-Pressure Standard Probestart Sodium 35-1, Low-Pressure Sodium LED 0.5-1,000s Induction

22 Fluorescent Fixture Types Suspended Surface Mount Wall Wash and Wall Mount Retrofit Kits Linear Panels Recessed Architectural Troffers Parabolic Industrial Strip

23 Pulse Start Metal Halide High Pressure Sodium Full Cut-Off Fixtures Exterior Lighting Eliminates All Stray Light Pollution Provides Effective Light Where Needed LED Control Photocell Scheduling

24 DIY Lighting Audit Room Information RM# Length Width Height Number of fixtures x Watts per fixture total watts Room Dimensions Lighting Information Existing Fixtures and Description Quantity Lamps/Fixture Fixture wattage Total watts existing -Total watts new Watts Saved RM1 RM2 RM1 New Fixtures and Description Quantity Lamps/Fixture Fixture wattage (Watts Saved x hours of use) 1000 kwh saved RM2

25 Salem CSD Lighting and Controls Retrofitted: 48 LED Exit Signs 57 T-8 Lamps 6 T-8 Lamps U Tubes 15 recessed fixtures 338 Occupancy sensors Total Project Cost: $81,995 NYSERDA incentive: $11, Energy Savings: 99,137 kwh (annual savings: $11,896.44) Simple payback: 5.89 years K12Schools@nyserda.org

26 Deep Energy Retrofit Brighter Choice Middle School - Over 50 Remote Mounted Occupancy Sensors - Over 750 New Fluorescent Fixtures T8, T5 & T5HO; Wall pendants, High-bay, and 4 troffers - Carbon-dioxide sensors for ventilation control on air-handling units - Economizer control on air-handling units - 10 New Air Handling units Incremental Cost* - $51, (above code) NYSERDA Incentive - $24, Annual kwh Savings 105,806.8 Annual energy savings - $12, Simple Payback 2.2 years

27 Deep Energy Retrofit Syracuse City School District Variable air-volume ventilation systems with variable-speed drives on supply and return air fans Economizer control on air-handling units Carbon-dioxide sensors for ventilation control on gym and cafeteria airhandling units Lighting, occupancy sensors, premium-efficiency motors and ENERGY STAR transformers Building Commissioning NYSERDA incentive: $150, Energy Savings: 422,446 kwh (annual savings: $55,953) Peak summer-demand reduction of 97.8 kw Annual emissions reduction of more than 186 tons Simple payback of 1.1 years

28 Lighting Resources Design Lights: Energy Star: Consortium for Energy Efficiency: Additional Resources: Advanced Lighting Guidelines, New Buildings Institute, Energy Ideas Clearinghouse, Interlight -Search Tool Web Page, Lighting Design Lab, Rensselaer Polytechnic Institute, Lighting Research Center, Lighting Facts, CALiPER,

29 Conclusion NYSERDA Lighting Basics definitions Lighting Technologies Performing your own lighting audit Using NYSERDA and utility incentives Using lighting to buy down energy retrofits

30 Thank you Any Questions? Additional questions can be ed to: