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.
Energy codes, green building projects, user interest in flexibility and other market forces are driving demand for lighting solutions, including high-intensity discharge (HID) lighting systems, such as high-pressure sodium and metal halide.
Doing more for less is a workplace mantra these days. It applies to the work force and the energy usage of the building that houses it. Smart lighting strategies are playing a central and growing role in this confluence of productivity.
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.
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.
The LED revolution continues to promise many lighting benefits, such as compact size, energy efficiency, long service life with long mean time between failures, no mercury disposal, a resistance to shock and vibration, and no radiated heat or UV output.
It’s not often that an electrical contractor has the opportunity to sell a product line that saves a customer time, money and energy; promotes green sustainability; and reduces the load on the nation’s power grid. But that’s what industry observers say LED lighting sources can do.