New--Emerging-Technologies-in-Lighting--Smart-Homes_Jeremy_Snyder

Reducing lighting energy use in single-family residences with LED lighting Jeremy Snyder Lighting Research Center Rensselaer Polytechnic Institute Presented to: 2018 HPC New York Home Performance Conference February 14, 2018 © 2018 Rensselaer Polytechnic Institute All rights reserved Lighting Research Center “Advancing the effective use of light, thereby creating a positive legacy for society and the environment.” • Founded in 1988 • 30,000 ft2 facility in Troy, NY • NVLAP-accredited lab • 40-60 concurrent projects in lab and field • M.S and Ph.D programs • 35 full-time faculty and staff ã Research and education revenue US$6M/ year â 2018 Rensselaer Polytechnic Institute All rights reserved Research project w Emerging Technology and Accelerated Commercialization (ETAC) Single Family Residential project w Sponsored by NYSERDA w Led by the Lighting Research Center Đ Measurement and verification by Taitem Engineering â 2018 Rensselaer Polytechnic Institute All rights reserved Single Family Residential LED Lighting Demonstrations w Worked with efficiency contractors w Measurement and verification: and builders to install LED lighting in § Occupant acceptance 11 single family residences across § Installer experience New York § new construction, occupied § Photometric measurements § new construction, model § Hours of use § retrofit w Analyzed: w LED lighting products specified for 12 interior spaces at each house § § Power demand and density § Energy use ENERGY STAR products used when available § Environmental impact § Payback period w Model homes open for tours Full report available at http://www.lrc.rpi.edu/programs/energy/pdf/ETAC-SingleFamilyResidential_FinalReport.pdf © 2018 Rensselaer Polytechnic Institute All rights reserved Single Family Residential LED Lighting Demonstrations New construction Retrofit © 2018 Rensselaer Polytechnic Institute All rights reserved Energy savings w Energy savings from LEDs depend on base case Standard incandescent Halogen incandescent CFL LED 60W 43W 14W-20W 10W No longer sold Typical incumbent 53% to 67% savings vs halogen 77% savings vs halogen © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family energy calculation method w Base case light sources: § Retrofit projects used actual lamps, sometimes still using standard incandescent Đ New construction assumed halogen lamps, except: ã Products where standard incandescent is common (e.g BR30) • Where builder specified technology (e.g Albany Housing Authority specified fluorescent) © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family energy savings results w Average savings compared with base case: § 1200 kWh/ year § 73% reduction Small apartment, fluorescent base case © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family payback calculation method w Payback period=incremental equipment costs for LED products, divided by energy costs saved per year w Costs from big-box retailers in May 2017 w Labor costs: § For new construction, not included because no additional labor § For retrofits, reported labor used © 2018 Rensselaer Polytechnic Institute All rights reserved Calculating payback Simple payback period (yr)= Annual cost savings ($/yr)= Cost or incremental cost of upgrade ($) Annual cost savings ($/yr) Power reduction (W) 1000 (W/kW) X Hours of use (h/yr) X Cost of electricity ($/kWh) 10 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family payback results New construction § Incremental costs $0 to $730 § Payback to 6.2 years LED products cost less than base case (pin-base CFL) 11 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family payback results Retrofit § Product incremental costs $335 to $590 Đ Payback: ã Materials only: 2.9 to 6.1 years • With labor: 6.9 to 14.4 years 12 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family occupant/visitor acceptance New construction, occupied homes “Overall I am very happy to have gone with LED lighting I can tell the difference between the lighting in my house vs traditional fixtures and am pleased that I have LED I like it better." (Owner, Saratoga Springs house) 13 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family occupant/visitor acceptance New construction, model homes “Love LED lighting.” (Pittsford Homearama tour participant) 14 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family occupant/visitor acceptance Retrofit homes "Our old lights were terrible, flickering, noisy, not dependable, and fragile The quality of these lights are amazing No guilt about them being on….” (Owner, Poughkeepsie retrofit house) 15 © 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family installer experience w Price § Overall, LED fixtures cost more than conventional lighting Đ Some exceptions: ã LEDs cost less than pin-base CFL products (Albany) • Dedicated LED fixtures about the same cost as conventional, but lamps cost more (Pittsford) w Labor Đ Labor costs equivalent to conventional lighting 16 â 2018 Rensselaer Polytechnic Institute All rights reserved ETAC single family installer experience w Product availability § Most light fixtures and lamps available with LEDs Đ Some exceptions ã Candle-base LED lamps for paddle fans • Retrofit for ceiling mounted diffuser § Most installers purchased products at big box stores w Maintenance § No maintenance or reliability concerns were reported in first six months after installation 17 © 2018 Rensselaer Polytechnic Institute All rights reserved Tips w For fastest payback, focus on: § Lamps and luminaires that have the highest power demand § Rooms that have the most hours of use w When upgrading, match: § Base § Size § Lumens § Correlated color temperature (CCT) § Distribution/lamp type 18 © 2018 Rensselaer Polytechnic Institute All rights reserved Tips w Avoid sources of glare, e.g.: § Bare lamps § Lights in line-of-sight w Reduce ambient lighting and provide task lights, e.g.: § Under-cabinet lights § Reading lights § Desk lights w Avoid excessive heat, unless product is rated for application, e.g.: § Enclosed fixtures with or more lamps § Insulated ceilings Đ Above stoves 19 â 2018 Rensselaer Polytechnic Institute All rights reserved Tips w Check dimmer compatibility § Manufacturer’s list § Try it out w ENERGY STAR label is mark of quality as well as energy savings w Save product receipts and packaging for warranty w Consider installing a wholehouse surge arrestor 20 © 2018 Rensselaer Polytechnic Institute All rights reserved Resources w Lighting patterns for homes website § http://www.lrc.rpi.edu/patternbook/ Đ Lighting patterns for rooms ã Includes energy savings calculators Đ Guides to lighting products and techniques 21 â 2018 Rensselaer Polytechnic Institute All rights reserved Resources w Residential lighting video series Đ http://www.lrc.rpi.edu/patternbook/videos.asp 22 â 2018 Rensselaer Polytechnic Institute All rights reserved LED Lighting for Multifamily Housing w Guidance document on LED Lighting for Multifamily Housing § http://www.lrc.rpi.edu/programs/solidstate/assist/multifamily.asp 23 © 2018 Rensselaer Polytechnic Institute All rights reserved Acknowledgements w NYSERDA: Ryan Moore w LRC: Kassandra Gonzales, Dennis Guyon, Geoffrey Jones, Russ Leslie w Taitem Engineering: Florence Baveye, Beth Mielbrecht, Myron Walter w LaRoque Business Management Services, LLC: Philip LaRoque w Builders: Anne Borix, Larry LaDuca, Michael Millner, Laura Moody, Mike Quinlan, Dave Trojanski, Dan Viola w Home Performance Contractors: Luis Hernandez and Daniel S Martini w Participating occupants and visitors 24 © 2018 Rensselaer Polytechnic Institute All rights reserved Thank you Jeremy Snyder Lighting Research Center Rensselaer Polytechnic Institute 21 Union Street, Third Floor Troy, NY 12180 518-687-7100 snydej7@rpi.edu www.lrc.rpi.edu 25 © 2018 Rensselaer Polytechnic Institute All rights reserved