Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Increased Productivity, Not Less Energy Use, Results From More Efficient Lighting

08.08.2012
Two researchers have reprised in the journal Energy Policy their groundbreaking finding that improvements in lighting — from candles to gas lamps to electric bulbs — historically have led to increased light consumption rather than lower overall energy use by society.

Sandia researcher Jeff Tsao and colleagues have published a follow-up paper in the journal Energy Policy regarding the productivity gains to be realized with LED lighting. The paper came after an initial article published in 2010 was misinterpreted in some media outlets.

In an article in the journal Energy Policy, Sandia researcher Jeff Tsao and Harry Saunders of The Breakthrough Institute in Oakland, Calif., predicted in 2010 that the same phenomenon might apply to light-emitting diodes (LEDs), poised to take over from the Edison light bulb as the next, more efficient light source of choice.

But their main point, as three centuries have shown, was that increased light availability leads to increased productivity. Workers are no longer forced to stop shortly after nightfall, as they had in primitive, candle-illuminated huts, but instead could continue producing through the night in homes, offices, factories, and even at outdoor locations not serviced by power lines.

The original paper, titled “Solid-state lighting: an energy-economics perspective,” drew attention to the increased productivity made possible by better lighting, rather than societal energy-savings mistakenly cited as a feature of improved lighting technologies.

Misinterpretations of the original paper by two widely read international media outlets led to the confusion that Tsao and his co-authors had shown that lighting efficiency improvements were no improvements at all. This is because reductions in neither overall energy usage nor overall lighting costs would occur.

The researchers, in the upcoming article, titled “Rebound effects for lighting,” said the 2010 article generated both interest and confusion in the popular press and in the blogosphere. “This communication seeks to clarify some of this confusion for the particular benefit of energy economists and energy policy specialists,” they wrote.

The new article appears under “Articles in Press” on the Energy Policy website.

“We were motivated to publish something, even if short, in Energy Policy, because that journal serves a community very different from that served by the Journal of Physics, where our original article was published,” Tsao says. “We thought that many in the energy economics community were still unaware of the work, and of the benefit — even when there is no direct energy-use savings — of energy efficiency and other welfare-enhancing technologies.”

Other authors of the 2010 article included Sandia researchers Mike Coltrin, Jerry Simmons and Randy Creighton (retired). Harry Saunders is also associated with Decision Processes Inc. in Danville, Calif.

The work was supported by Sandia’s Solid-State Lighting Science Energy Frontier Research Center, which is funded by DOE’s Office of Basic Energy Sciences.

Sandia National Laboratories is a multi-program laboratory operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin company, for the U.S. Department of Energy’s National Nuclear Security Administration. With main facilities in Albuquerque, N.M., and Livermore, Calif., Sandia has major R&D responsibilities in national security, energy and environmental technologies and economic competitiveness.

Sandia news media contact: Neal Singer, nsinger@sandia.gov, (505) 845-7078

Neal Singer | Newswise Science News
Further information:
http://www.sandia.gov

More articles from Power and Electrical Engineering:

nachricht Scientists create biodegradable, paper-based biobatteries
08.08.2018 | Binghamton University

nachricht Ricocheting radio waves monitor the tiniest movements in a room
07.08.2018 | Duke University

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

Im Focus: Lining up surprising behaviors of superconductor with one of the world's strongest magnets

Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur

What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

2018 Work Research Conference

25.07.2018 | Event News

 
Latest News

Staying in Shape

16.08.2018 | Life Sciences

Diving robots find Antarctic seas exhale surprising amounts of carbon dioxide in winter

16.08.2018 | Earth Sciences

Protein droplets keep neurons at the ready and immune system in balance

16.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>