Bookmark and Share

Energy Newsbriefs Blog

This current awareness service is prepared by the WSU Energy Program Library with funding from the U.S. Department of Energy State Energy Program. This information is provided for energy professionals and interested members of the public to highlight recent energy-related news, articles, and reports that discuss energy efficiency, energy conservation, and renewable sources of energy in engineering and policy circles.


Category: Lighting/Daylighting


LED vs. Induction Lighting: Which Illumination Solution is Right for Your Facility?

Buildings, Apr. 2015, by Janelle Penny.

"Time for a lighting upgrade? You may be torn between LED and induction fixtures. Both offer low maintenance needs, are compatible with a variety of applications, and can secure energy savings. Familiarize yourself with the basics of these technologies to uncover which one will bring your project to light."

Uncovering the Cost Benefits of a Good Lighting Circuit Design

EC&M, Apr. 2015, by Aaron Hesse. (Free registration required to view full-text)

"Iterative voltage drop calculations are some of the most tedious and time-consuming components of an electrical design process. This is especially true for large lighting installations, such as those found in parks and parking lots as well as roads and highways. As a result, it is common for designers to oversimplify voltage drop calculations in a lighting design. With the lighting industry trending toward LED use, it is becoming increasingly common to string large quantities of luminaires on a single circuit due to the decreased load per luminaire. Now more than ever, detailed voltage drop calculations can avoid over engineering of lighting systems and substantially decrease project costs."

LEDs Still a Mystery to Many Contractors

EC&M, Apr. 2015, by Tom Zind. (Free registration required to view full-text)

"As LED products continue to flood the marketplace, electrical contractors must balance the appeal of online buying expedience with the need to fully grasp a technology still shrouded in uncertainty. Held up as one of the proven, readily deployable technologies that could put a big dent in global energy consumption over time, LED lighting products are drawing the interest of ever more electrical contractors looking for avenues into the lucrative and growing energy-efficiency market."

Integration: Lighting and HVAC systems

Consulting-Specifying Engineer, April 2015, by Chris Rush.

"By considering the first principles of radiative energy, engineers can determine how to balance daylight, electric light, and HVAC systems, particularly considering various options for daylight control and the advent of LEDs."

This Vertical Farm Will Provide Wyoming Residents with 100,000 lbs of Fresh Produce Each Year

Inhabit, Mar. 9, 2015, by Charley Cameron.

"A 30 foot by 150 foot sliver of land located next to a parking lot in Jackson, Wyoming is set to be transformed into a vertical farm that will produce up to 100,000 lbs of produce each year. Using 90 percent less water than conventional farming, and absolutely no pesticides, the three-story Vertical Harvest greenhouse will enable the cold, land-locked city to provide locally-grown produce for its residents all year round."

Daylighting and Flooring: Don’t Overlook the Issue of Reflectivity

Armstrong Flooring, Jan. 2015, by Mike Kennedy. [May need to complete free registration to download full report.]

"A key strategy in creating environmentally friendly, energy-efficient education spaces is capturing abundant daylight and reducing the reliance on artificial light. Efforts to maximize daylighting in school facilities have taken many forms as techniques have grown more sophisticated.... For architects and administrators who have reaped the benefits of many of these strategies and are seeking even more daylighting dividends, one characteristic to consider that some may be overlooking is the reflectivity of the flooring material selected for a space."

LED Lighting Makes Pro, Trains For Super Bowl Debut

Forbes, Jan. 27, 2015, by Heather Clancy.

"This year’s Super Bowl will the first played under energy-sipping LED lights. The University of Phoenix Stadium, host to the Feb. 1 game, uses 312 fixtures made by Ephesus Lighting, which specializes in technology for fields, arenas and the like. The lights replaced 780 metal halide fixtures."

Commissioning Lighting Systems

Consulting-Specifying Engineer, Dec. 2014, by Michael Crow.

"The complexity of lighting design has made commissioning of lighting controls an essential part of projects. Commissioning for the most part is voluntary; however, if an owner is contemplating U.S. Green Building Council LEED certification or if ASHRAE 90.1-2010 compliance is required, commissioning is mandatory."

Why Incorporate a Shading System?

Environmental Design + Construction, Nov. 2014, by William Maiman.

"The challenge for architects, building owners and engineers is to provide as much daylight on the interior floors for the longest period of the day so that electrical lighting can be turned off and reduce energy costs/lower greenhouse gas emissions at power generating facilities. For the occupant, solar radiation can be more than an annoyance. Interior heat gain aside, most people are very sensitive to a slight variation of temperature."

A Starring Role For Universal City [Hotel] Retrofit

Engineered Systems, Sept., 2014, by Tony Ghaffari.

"A Hilton in the heart of show biz transformed into a sustainable destination hotel with the help of chiller and cooling tower overhauls and improved BAS and ventilation strategies. Don’t miss the final plot twist before the system’s big launch party."


The Energy Newsbriefs Blog is a continuation of the weekly Energy Newsbriefs. Please bookmark this site and return frequently. Although we will not be accepting comments from within the Blog, we would be happy to hear from you by email at