Impacts of Outdoor Lighting: Considerations to Reduce Energy, Save Money and Minimize Light Pollution for People and the Environment

Wed., February 1, 2023, 11:30am HST/5:00pm EST

Earn 1 HSW (AIA Honolulu is the registered provider)



Together with the IES Honolulu Section, Hawaii Energy, and the International Dark Sky Association (IDA) the DLC is excited to present this “lunch and learn” event. Join us in-person, or watch on-line, for a panel discussion about the importance of responsible light at night.

Outdoor lighting supports our 24/7 society, but growing evidence shows negative consequences of over-lighting to ecosystems, astronomy, cultural activities, and our health. Responsible outdoor lighting is a holistic approach to minimize the impacts of light pollution, without compromising safety and environmental safeguards. This panel will address topics such as how lighting affects coastal ecosystems and astronomical study and share resources available to communities, building owners and lighting decision makers to reduce the negative impacts from sky glow and light trespass. In addition to the benefits that appropriate lighting can provide to our outdoor environment, there are also energy savings to be captured by only using the right type of light, and only when and where it is needed. The current state of standards and design solutions will be discussed, as well as considerations for selecting white and non-white outdoor LED lighting.

Learning Objectives:

  • Recognize the impacts of light pollution on dark skies, wildlife and people.

  • Apply strategies to reduce energy use and minimize negative impacts of outdoor light at night.

  • Understand how to evaluate performance characteristics of non-white LED outdoor lighting in the absence of relevant standards.

  • Learn about Hawaii Energy’s work to reduce energy and incentives available for outdoor lighting.



Start Time End Time
11:30am HST 12:00pm HST Lunch & Networking
12:00pm HST/5:00pm EST 1:15pm HST/6:15pm EST Program
1:15pm HST/6:15pm EST 1:30pm HST/6:30pm/EST Q&A


  • Graceson Ghen, Hawaii County Manager, Hawaii Energy Efficiency Program

    Graceson works closely with Hawaii Island businesses to provide energy efficiency consultation and assist with processing financial incentives. He also supports residential projects and assists with conducting community outreach and educational events.

    He has more than 20 years of hands-on trades experience including energy-efficient retrofits such as lighting, motors, control systems, as well as renewable energy and electrical systems for on-grid and off-grid applications that include photovoltaic (PV) and solar thermal.

    Graceson obtained a Bachelor of Science degree through the Global Environmental Science program at UH Manoa. He also earned a Master of Arts in Geography with a focus on Cumulative Effects Assessment within Hawaii’s Environmental Law and Planning processes.

  • Sheldon Plentovich, Hawaii and Pacific Islands Program Manager, U.S. Fish and Wildlife

    Sheldon Plentovich is an Ecologist who helps to restore ecosystems on Pacific Islands. After a misguided detour as an engineering major, she earned her BA, MS and finally PhD in Wildlife Conservation at University of North Carolina Wilmington, Auburn University and University of Hawaii, respectively.

    She is the Pacific Islands Coastal Program Coordinator for the U.S. Fish and Wildlife Service based on Oahu. She implements innovative habitat improvement projects on Pacific Islands that restore island ecosystems. On Oahu she leads projects focused on restoring, protecting and expanding nesting habitat for Hawaiian Green Sea turtles, Hawaiian seabirds and Hawaiian yellow-faced bees.

    When not working, Sheldon enjoys the peace of being alone in nature, preferably with her surfboard in tow.

  • Leora Radetsky, Sr. Lighting Scientist, DesignLights Consortium

    With over 20 years of experience in the lighting industry, Senior Lighting Scientist Leora Radetsky provides lighting science input for the DLC’s technical requirements. Drawn by a desire to make a difference in the industry through market transformation, Leora came to the DLC with experience as a research scientist at Rensselaer Polytechnic Institute’s (RPI) Lighting Research Center and director of customer education at a prominent lighting software company. A recipient of an Illumination Engineering Society (IES) Regional Technical Award from the Northeast region, Leora is also Lighting Certified by the National Council on Qualifications for the Lighting Professions, and a member of IES and the American Society of Agricultural and Biological Engineers. In addition to a Master’s degree in Lighting from RPI, Leora holds a Bachelor of Science in Architectural Engineering with an Emphasis in Illumination from the University of Colorado.

  • Richard Wainscoat, Astronomer, University of Hawaii

    Richard Wainscoat is an astronomer at the University of Hawaii. He grew up in Australia, receiving his PhD in astronomy from the Australian National University. He was attracted to Hawaii by the excellent observatory sites on Maunakea and Haleakala, and the powerful telescopes that are located atop those mountains. His research is focused on Near-Earth Objects, which are asteroids and comets that come relatively close to Earth. Impacts from larger objects will have catastrophic consequences to life on Earth, so worldwide efforts are now being made to find objects that may hit Earth in the future so that they can be deflected. He leads the Near-Earth Object search program with the Pan-STARRS telescopes on Haleakala. The Pan-STARRS survey is a leading discoverer of Near-Earth Objects and new comets. He also leads the University of Hawaii’s efforts to keep the observatory sites on the Island of Hawaii and Maui dark, and to protect them from light pollution, and serves on several IES and CIE committees. He is also a photographer and an astrophotographer.


This event is offered as a hybrid event. If you plan to attend in-person at the AIA Honolulu and the Center for Architecture, please select the “in-person” registration button below.

If you plan to watch this event live streamed, please select the “webinar” registration button below.


AIA Honolulu and the Center for Architecture
828 Fort Street Mall, Suite 100
Honolulu HI 96813-4314

Parking convenient to AIA Honolulu | Center for Architecture:

  • Oceanit Center, 828 Fort Street Mall (enter on Queen Street).  Pay by license number (credit card only).
    Mon-Fri: 6am-8pm (must remove car by 9:15pm or it will be locked in the garage)
    Rate: $8.00 every 1 hour; $2.00 flat rate from 4pm-8pm
    Sat: 8am-4pm (must remove car by 3:45pm or it will be locked in the garage)
    Rate: $2.00 flat rate on Sat from 8am – 4 pm.
  • Harbor Court, 55 Merchant Street – (cash only)
    $.75 1/2 hour 1st two hours; $1.50 1/2 hour after 2 hours; 5 pm the rate is $.50 1/2 hour up to a maximum of $3.00. The garage closes at 12am (midnight).
  • Chinatown Gateway, 1031 Nuuanu Ave.
    $.75 1/2 hour 1st two hours; $1.50 1/2 hour after 2 hours; $.50 1/2 hour after 5 p.m. (up to $3.00)

Additional Downtown Parking Guide link.