October Section Meeting – Past President Night with Dark Sky Lighting – Why Best Practice may not be Enough

We’re looking forward to finishing out our IES 2024 year of events with our traditional Past Presidents Night!  If you’re not yet an IES member, this evening is a great opportunity to meet many of the colorful personalities that make IES Milwaukee the great organization that it is.  And if you’re not a past president (yet), it’s a chance to hear what board service for IES Milwaukee is all about.

Topic

As IES professionals you are acutely aware that outdoor lighting is a necessity for humans but that it also needs to be done in a way that minimizes potential negative impacts. If you perform your work under the impression that using full cutoff, 3000K fixtures is the best way to be a responsible designer this presentation may offer some surprising information.

Studies using ground-based analysis show that night sky brightness has increased nearly 10% each year for the past decade. An increase much higher than that measured by satellites. A study by the National Park Service in Chelan County in Washington State helps explain why that’s true. Ground-based measurements taken over a three-year period in Vernon County Wisconsin before and after street light replacements confirm that locally this increase is almost certainly due to the replacement of HPS sources with blue-rich LED lighting.

Learning Objectives

• Understand the impact of even low CCT LED sources on sky brightness and why it matters.
• Learn about the linear relationship between S/P ratio and relative sky glow.
• Learn about initiatives by the DesignLights Consortium to address sky brightness impacts through the LUNA QPL.
• Learn about expanded product lines that open up possibilities to apply lower CCT products.
• Learn about new chip designs that could lead to lower sky brightness impacts.

Presenter

Scott Lind from the Kickapoo Valley Dark Sky Initiative is a Wisconsin licensed professional electrical engineer and master electrician who has worked for 35 years on a wide variety of power and lighting projects. He does not claim to be a lighting designer and prefers to call himself a “power guy” but cares deeply about the impacts artificial light at night has on the environment.

Kickapoo Valley Dark Sky Initiative is a conservation initiative focused on providing education and resources for individuals, businesses, and communities to prevent light pollution and protect dark skies in the Kickapoo Valley, and beyond.

Event Schedule

5:30 Happy Hour

6:15 Dinner

Cost:

Dinner Options

Petite Filet – Gluten Free Option Available – Indicate Dietary Restriction
Lasagna with Red Sauce
Chicken Normandy with Whipped Potatoes

All meals include salad with choice of dressing, Italian bread, coffee and sherbet

Past President – Free | $35 for member | $45 for non-member | $20 for student

RSVP deadline is NOON on Tuesday, October 15th, 2024.

RSVP closed at 9:30 am.  The venue changed the time they required our information.

Attendees: