Lighting currently represents about 17.5 percent of all global electricity consumption, according to the EnergyWatch newsletter from Attardi Marketing. The United States alone accounts for approximately 20 percent of this amount at an annual cost of more than $40 billion.
If the nation’s rising unemployment, flagging construction, and global debt crisis didn’t give electrical contractors enough cause for concern, they have recently been grappling with another business woe—significant price increases on some of the market’s most popular energy-efficient fluorescent la
Driven by commercial building energy codes, green building projects and owner demands for flexibility and lighting energy savings, lighting controls increasingly are being specified and specified systems are becoming increasingly sophisticated.
Employing daylight to reduce electricity can be an attractive energy opportunity for building owners and operators, with lighting accounting for nearly 40 percent of all energy consumed in modern buildings.
“The lights, they are a changing,” to tweak a line from Bob Dylan. Current lighting trends, which are driven by the call for energy efficiency and advances in technology, are signs of an industry in flux.
The holiday season is supposed to be a time of good cheer. American culture has evolved to embrace the closing of each year as a celebration of the values we each hold dear. It's evident in the environments we create.
Lighting represents a substantial portion of the annual energy use and expense of any commercial building despite building owner and occupant energy -conservation and efficiency efforts. According to the U.S.
Lighting design begins with identifying the lighting needs for the space and then deciding what surfaces you want to light and at what intensities. Once you make these decisions, you can begin selecting equipment.
A high-quality lighting solution for office workers could be to use suspended direct/indirect lighting with fixtures mounted over workstations and a downlight component of the fixture that is individually dimmable by the user.
The Energy Independence and Security Act of 2007 created new efficiency standards for 40–100-watt (W) incandescent general-service lamps, along with an uproar. As of Jan. 1, 2012, 100W lamps must be 30 percent more efficient, or they will be prohibited from manufacture or import. Jan.
Dimming offers greater flexibility for lighting systems, providing users with more control over their lighting conditions to support visual needs and enabling energy management strategies that can reduce energy costs.
As with other types of lighting, energy codes and legislation are influencing high-intensity discharge (HID) lighting—high-pressure sodium (HPS), metal halide (MH), and mercury vapor—in this era of regulated efficiency.
Lighting evolves based on need. Incandescent made way for brighter fluorescent. Fluorescent made room for solid-state lighting (SSL). The next big idea may be light-emitting diodes (LEDs). While they are an SSL source, LEDs are new to general lighting applications.
Any given year has its predictions. If you’re reading this article, the world as we knew/know it didn’t end on May 21—one of the most publicized predictions for 2011. In Chicago, Cubs fans may yet again be asserting that next year will be the year their team goes all the way.
Debate continues about whether LEDs have the output in lumens, the color consistency and the price point to replace traditional incandescent, halogen and fluorescent lamps in high brightness and general illumination applications. Is it finally time to end the discussion?