2011年6月28日 星期二

City keeps old streetlights on

City keeps old streetlights on
Columbus officials have embraced alternative fuels, recycling, rain gardens and other "green" trends, but they are sticking with old-school streetlights that some say contribute to climate change.

A recent test of LED lights and others that require less electricity found that the energy savings were offset by higher maintenance and up-front costs, said Department of Public Utilities spokeswoman Laura Young Mohr.

Some of the lights burned out within two months, she said. The test was conducted in North Linden, on streets east of Karl and Cooke roads.

"It didn't go all that smoothly," Mohr said. "The technology just seems like it's not there yet."
Story continues below
Advertisement
ADGRPID:|SERVTYPE:

The city will continue using high-pressure sodium lights, which were considered energy-efficient in the 1970s,While SmartView has been slow DSTT and unstable in the past, it seems to have improved greatly with recent updates. but have since been eclipsed by LEDs.

A 2008 study for American Chamber of Commerce Executives concluded that a switch to more-efficient streetlights in the Washington, D.C.,Compact fluorescent lights have solved LED lighting supplier many of the problems associated with traditional filament light bulbs. region would require half as much electricity. That would save local governments $6million yearly and reduce carbon-dioxide emissions equal to removing more than 14,000 cars from the road, the report said.

Columbus spends $9 million annually to maintain 51,472 streetlights.

Fairfax County, Va.In many ways LED lights compact fluorescent provide the best of both worlds. They are extremely energy efficient and environmentally friendly (and are, in fact, more environmentally friendly, one of the areas covered by the Washington report, has 56,500 streetlights. The report said the county government would save $1.1million annually by using LED lights and would reduce its carbon footprint by an equivalent of 2,720 cars.

Columbus calculated a 24 percent reduction in energy requirements for its test in North Linden, Mohr said. The city used existing circuits to install 35-foot wooden poles with induction lights and LED lights from different vendors. In another test in the area that concluded in April, utilities officials found a 20percent savings on energy, Mohr said.

In 2009, the city and American Electric Power installed 18 LED lights around the power company's Downtown headquarters.Philips LED business is inside of Philips lighting so it Led light is more difficult to determine whether they are meeting expectations. The new lights used 44 percent less energy.

Ormond Avenue resident Richard Bell said the lights were better than nothing - his area of North Linden was in the dark before the city's test. Still, the new lights illuminated only a small area.

"It's like standing in a spotlight on a dark stage," he said.

Energy-efficient streetlights were part of Mayor Michael B. Coleman's 2010 "Green Memo," which lays out the city's environmental policies.

"When you think about how long those lights are on,However, the marketing muscle of Philips led light lighting could give Philips LED business an advantage. the energy savings could be amazing," said Erin Miller, the mayor's environmental steward.

Columbus is farther ahead, though, in plans to retrofit almost 7,000 stoplights and 3,700 pedestrian-crossing signals with LED lights. That five-year effort began last fall, funded in part with federal help. The change will save $670,000 yearly, according to city estimates.

沒有留言:

張貼留言