About 35 Downtown intersections will be getting modern LED traffic lights and other improvements in a three-year, $3.8 million project, Mayor Luke Ravenstahl announced Wednesday.
The project also portends a cultural shift. Because the project will increase the city's capacity to control traffic lights remotely, fewer police officers will be needed to operate lights manually during rush hour and big events.
The work will begin next spring with improvements to four intersections -- the Boulevard of the Allies' intersections with Cherry Way, Commonwealth Place and Market and Stanwix streets.
Besides new traffic signals, the work will include enhanced lighting, new crosswalks and new pedestrian crossing signals with audible and digital countdown features.
"By investing in twenty-first century technology, we will make it easier and safer to live in and visit Downtown Pittsburgh," Mr. Ravenstahl said in a statement. Similar work will be done at 30 other intersections "all over the Downtown area," mayoral spokeswoman Joanna Doven said.
Legislation authorizing the project will be introduced in city council today.
Jeremy Waldrup, president and CEO of the Pittsburgh Downtown Partnership, a business group, said the project is a "great opportunity to use technology" to improve the experiences of commuters and occasional visitors.
"I think it is a great plus for Downtown," he said.
The city's goals are not only to increase public safety, but to improve traffic flow and ease congestion. Workers will be able to operate traffic lights remotely, so timing can be changed in advance of sporting events or adjusted on the fly if accidents, construction, snow storms or other factors warrant.
"Modernizing our traffic lights will make employees more efficient," Mr. Ravenstahl said, noting fewer officers will be needed to operate lights manually, freeing them up for other duties.
The city and state Department of Transportation will share costs. A breakdown was not available Tuesday.
Net income of $0.4 million for the three months ended September 30, 2011 is mainly based on one-time gains from the legal settlement with Lightech in the quarter." stated Bruce Cousins, Chief Executive Officer. "I am delighted to have recently joined Carmanah and am optimistic of the growth opportunity for the company." Cousins continued. "With dramatic decreases in solar panel pricing, continuing breakthrough's in LED technology and anticipated breakthrough's in battery technology, Carmanah is well positioned to capitalize on the integration of this technology as "we put solar to work."
2011年11月10日星期四
2011年11月9日星期三
Don’t you dare smile at me
In his Bermuda Sun interview, Mr Burgess said he played by the rules and “did not do anything wrong”.
He claimed the LED lights were the best bulbs you could buy at that time, did not pose a health hazard, were better for the environment and saved taxpayers’ money.
Mr Burgess said MET Laboratories rather than the more commonly recognised Underwriters Laboratories (UL) had certified the lights.
He also insisted he did not go against the advice of his technical officers as they had not given him any advice.
Mr Burgess went on to say he only saw the report, which was carried out in April 2010, when he returned from his vacation. He said the report speaks of The Occupational Safety and Health Regulations Act 2009 when the lights were put in under the previous 1982 regulations.
The story failed to mention why the lights at Global House had needed to be changed back to fluorescent strips and whether taxpayers were footing the bill.
Mr Swan said he welcomed Mr Burgess finally speaking out, but said the published story “used more space extolling the virtues of LED lighting than in explaining the Minister’s actions with the Global House issue”.
He said: “The issue is not LED lights themselves, the issue is the manner and mindset which he, the Minister, exhibited in installing these lights in Global House.”
Mr Swan said Mr Burgess’ interview highlighted “the modus operandi of this Government, concerning unethical versus illegal behaviour”.
He said: “Either is wrong, and in this lighting debacle, the health and safety of citizens he purports to represent has been put at risk.
“As a citizen of this Country, I expect elected officials to exhibit both ethical and legal behaviour.”
The story was printed in the Bermuda Sun on the day of the Cabinet reshuffle where Mr Burgess was moved from the Ministry of Public Works to Transport.
Mr Swan added: “The fact that the Minister has now been moved to another Ministry Transport speaks more to the problem, and so creates more questions than answers about his actions.”
Mr Burgess and ETM president and CEO Leroy Robinson did not respond to requests for comment.
He claimed the LED lights were the best bulbs you could buy at that time, did not pose a health hazard, were better for the environment and saved taxpayers’ money.
Mr Burgess said MET Laboratories rather than the more commonly recognised Underwriters Laboratories (UL) had certified the lights.
He also insisted he did not go against the advice of his technical officers as they had not given him any advice.
Mr Burgess went on to say he only saw the report, which was carried out in April 2010, when he returned from his vacation. He said the report speaks of The Occupational Safety and Health Regulations Act 2009 when the lights were put in under the previous 1982 regulations.
The story failed to mention why the lights at Global House had needed to be changed back to fluorescent strips and whether taxpayers were footing the bill.
Mr Swan said he welcomed Mr Burgess finally speaking out, but said the published story “used more space extolling the virtues of LED lighting than in explaining the Minister’s actions with the Global House issue”.
He said: “The issue is not LED lights themselves, the issue is the manner and mindset which he, the Minister, exhibited in installing these lights in Global House.”
Mr Swan said Mr Burgess’ interview highlighted “the modus operandi of this Government, concerning unethical versus illegal behaviour”.
He said: “Either is wrong, and in this lighting debacle, the health and safety of citizens he purports to represent has been put at risk.
“As a citizen of this Country, I expect elected officials to exhibit both ethical and legal behaviour.”
The story was printed in the Bermuda Sun on the day of the Cabinet reshuffle where Mr Burgess was moved from the Ministry of Public Works to Transport.
Mr Swan added: “The fact that the Minister has now been moved to another Ministry Transport speaks more to the problem, and so creates more questions than answers about his actions.”
Mr Burgess and ETM president and CEO Leroy Robinson did not respond to requests for comment.
2011年11月8日星期二
Study Clarifies the Energy Savings in Retrofitted Buildings
While the practice of retrofitting buildings with energy-conserving technology like efficient boilers, high-quality windows and compact fluorescent light bulbs has been around for years, data on whether these changes result in any real savings has been virtually nonexistent. Now, a new study shows that these relatively straightforward fixes can significantly reduce spending on fuel and electricity.
Deutsche Bank Americas Foundation, a philanthropic arm of the German bank, and Living Cities, a nonprofit partnership of 22 foundations and financial institutions, commissioned the report, which will be released later this month. It examined nearly 19,000 affordable housing units in New York City that had undergone energy efficiency retrofits and found that these changes resulted in a 19 percent savings on fuel bills and a 10 percent savings on electricity across the portfolio. This translates into $240 in fuel savings and $70 in electrical savings per apartment every year.
“We have been looking for the secret sauce,” said Ben Hecht, the president and chief executive of Living Cities. “This study is definitely the first foray into data, and that is going to be critical to convince owners and lenders of the importance of retrofitting buildings.”
At Terrific Tenements, for example, an 88-unit, two-building affordable housing complex on West 48th Street in Manhattan, the installation of new boilers and heating controls reduced fuel costs by 50 percent. At one of the buildings, at 425 West 48th Street, there was a fuel saving of $551 a year per apartment, while at the sister building at 527 West 47th Street, the saving was $355 annually for each unit.
“These buildings are prewar classics and are representative of a pretty broad swath of the city’s housing stock,” said Marc Zuluaga, a vice president and director of the multifamily energy services group at Steven Winter Associates, a building consultant in New York. The company, along with HR&A Advisors, an economic development and real estate consulting firm, conducted the study.
The retrofits at the Terrific Tenements “was not achieved with any particularly exotic technologies” like solar panels or a green roof, Mr. Zuluaga said. Rather, this is the simple story “of how an owner took the worst-performing building type in the city and turned it into one of the best-performing buildings in the entire city.”
Jeffrey I. Brodsky, the president of Related Management, an arm of the Related Companies, the landlord of Terrific Tenements, said: “This study proves that the assumption that you can’t rely on savings when doing a retrofit isn’t true. It may not be perfect or exact, but you will see savings.”
The company does energy audits on all of its New York City buildings, where building engineers examine the utility usages to expose any opportunity for increased efficiency and savings, he said.
Another project examined in the study is Riverview II in Yonkers, also owned by the Related Companies. The 343 apartments at Riverview, at 47 Riverdale Avenue, were heated with electricity, and the landlord was responsible for paying all of the tenants’ electrical bills. The Related Companies started an electrical savings program, including better windows, lighting upgrades and Energy Star refrigerators, that helped reduce overall electricity usage by more than 25 percent.
In addition, each apartment was responsible for paying its own electric bills, giving tenants an incentive to conserve electricity. As a result, the changes translated into $808 in annual savings for each apartment.
Deutsche Bank Americas Foundation, a philanthropic arm of the German bank, and Living Cities, a nonprofit partnership of 22 foundations and financial institutions, commissioned the report, which will be released later this month. It examined nearly 19,000 affordable housing units in New York City that had undergone energy efficiency retrofits and found that these changes resulted in a 19 percent savings on fuel bills and a 10 percent savings on electricity across the portfolio. This translates into $240 in fuel savings and $70 in electrical savings per apartment every year.
“We have been looking for the secret sauce,” said Ben Hecht, the president and chief executive of Living Cities. “This study is definitely the first foray into data, and that is going to be critical to convince owners and lenders of the importance of retrofitting buildings.”
At Terrific Tenements, for example, an 88-unit, two-building affordable housing complex on West 48th Street in Manhattan, the installation of new boilers and heating controls reduced fuel costs by 50 percent. At one of the buildings, at 425 West 48th Street, there was a fuel saving of $551 a year per apartment, while at the sister building at 527 West 47th Street, the saving was $355 annually for each unit.
“These buildings are prewar classics and are representative of a pretty broad swath of the city’s housing stock,” said Marc Zuluaga, a vice president and director of the multifamily energy services group at Steven Winter Associates, a building consultant in New York. The company, along with HR&A Advisors, an economic development and real estate consulting firm, conducted the study.
The retrofits at the Terrific Tenements “was not achieved with any particularly exotic technologies” like solar panels or a green roof, Mr. Zuluaga said. Rather, this is the simple story “of how an owner took the worst-performing building type in the city and turned it into one of the best-performing buildings in the entire city.”
Jeffrey I. Brodsky, the president of Related Management, an arm of the Related Companies, the landlord of Terrific Tenements, said: “This study proves that the assumption that you can’t rely on savings when doing a retrofit isn’t true. It may not be perfect or exact, but you will see savings.”
The company does energy audits on all of its New York City buildings, where building engineers examine the utility usages to expose any opportunity for increased efficiency and savings, he said.
Another project examined in the study is Riverview II in Yonkers, also owned by the Related Companies. The 343 apartments at Riverview, at 47 Riverdale Avenue, were heated with electricity, and the landlord was responsible for paying all of the tenants’ electrical bills. The Related Companies started an electrical savings program, including better windows, lighting upgrades and Energy Star refrigerators, that helped reduce overall electricity usage by more than 25 percent.
In addition, each apartment was responsible for paying its own electric bills, giving tenants an incentive to conserve electricity. As a result, the changes translated into $808 in annual savings for each apartment.
2011年11月7日星期一
The Phil in Naples utilizes grant to go green
When new Philharmonic Center for the Arts CEO Kathleen van Bergen toured the buildings during her job interview, the A/C system was so loud she had to wear ear protection, she said.
But now, thanks to a green initiative and a $500,000 Florida Clean Energy Grant — a total matched by several anonymous donors — the mechanics of keeping the three-building, 150,000-square-foot complex cool are now easy on the ears.
“The original chillers were from 1988,” said building superintendent Alex Pena, who has led the effort, including replacement of the chillers. The green program is expected to save $85,000 a year in energy costs.
The Phil’s electric bill has run as high as $42,000 in season, but likely will be cut to “the high 20s,” Pena said.
Van Bergen said that maintaining proper humidity, temperature and lighting are particularly important for a museum with an art collection, and the improvements will allow for more consistent and more area-specific climate control.
Adjustments can be made remotely, Pena said. The new system is all electronic, and he can operate it remotely on a laptop.
A smart phone feature will help on the next phase of the project, which is to install solar panels on the roof that will heat water in the performance hall. If the temperature is too high or low, he will be alerted by phone that adjustments need to be made.
The panels, which van Bergen said will not be visible from the outside, should be in place yet this fall.
Other green steps include replacing regular light bulbs with LED versions, a significant savings in wattage.
All 846 bulbs in the entry to the performance hall were once 90 watts each. They’re now 2.5 watts each. In the museum, 75-watt bulbs were replaced with 5 watt.
Not only are the LED bulbs more efficient, van Bergen said, they’re better for interior color. They also do not present the recycling and disposal problems associated with the new mercury bulbs.
Van Bergen said the energy savings is significant in that “the more we can put into our art, performances and mission here, the better.”
This week, NCH Healthcare System began a green effort focusing on recycling. According to CEO Allen Weiss, between 6 and 15 percent of hospital waste is designated “regulated medical waste,” which means as much as 94 percent is completely recyclable.
But now, thanks to a green initiative and a $500,000 Florida Clean Energy Grant — a total matched by several anonymous donors — the mechanics of keeping the three-building, 150,000-square-foot complex cool are now easy on the ears.
“The original chillers were from 1988,” said building superintendent Alex Pena, who has led the effort, including replacement of the chillers. The green program is expected to save $85,000 a year in energy costs.
The Phil’s electric bill has run as high as $42,000 in season, but likely will be cut to “the high 20s,” Pena said.
Van Bergen said that maintaining proper humidity, temperature and lighting are particularly important for a museum with an art collection, and the improvements will allow for more consistent and more area-specific climate control.
Adjustments can be made remotely, Pena said. The new system is all electronic, and he can operate it remotely on a laptop.
A smart phone feature will help on the next phase of the project, which is to install solar panels on the roof that will heat water in the performance hall. If the temperature is too high or low, he will be alerted by phone that adjustments need to be made.
The panels, which van Bergen said will not be visible from the outside, should be in place yet this fall.
Other green steps include replacing regular light bulbs with LED versions, a significant savings in wattage.
All 846 bulbs in the entry to the performance hall were once 90 watts each. They’re now 2.5 watts each. In the museum, 75-watt bulbs were replaced with 5 watt.
Not only are the LED bulbs more efficient, van Bergen said, they’re better for interior color. They also do not present the recycling and disposal problems associated with the new mercury bulbs.
Van Bergen said the energy savings is significant in that “the more we can put into our art, performances and mission here, the better.”
This week, NCH Healthcare System began a green effort focusing on recycling. According to CEO Allen Weiss, between 6 and 15 percent of hospital waste is designated “regulated medical waste,” which means as much as 94 percent is completely recyclable.
2011年11月6日星期日
Potter's Lamps & Lighting closing its doors after 65 years in Muskegon Heights
At times, shopping at Potter’s was like shopping with your best friend, favorite cousin or confidante.
“I can’t tell you how many times customers have asked me: Which (lamp) do you like best? Which would you choose?” Schoonbeck said. “Well, it’s not my house, but I like this one.”
After 28 years on the job, Schoonbeck has helped people decorate three or four houses, easing them through the arduous task of finding just the right fit each time. Furniture stores and decorators from all over West Michigan have sent customers to Potter’s because of the quality of their lamps and their repair department: Mosher.
“I’ve never found a light I can’t fix,” Mosher said.
At the time he was working on a fluorescent light fixture that had seen better days, brought in by an elderly man who didn’t want a new one. He wanted this one fixed. Mosher went to work. Within an hour, the customer walked out happy, no cost for labor, only $6 invested in new bulb.
“To me, the customer service we’ve provided, that one-on-one service, set us apart,” Mosher said.
That’s what brought Ron and Louise Robidoux of Norton Shores into the store, unaware that the business was closing or a 25 percent-off sale was in progress at the time. They were in the market for a new kitchen light, but they’d left the paper with all the measurements on it at home. Schoonbeck helped them through: Did they have 8-foot ceilings at home? What size was the fixture they had now?
Before long, they made their decision — but not without a certain sense of sadness.
“I grew up in the Heights,” Ron Robidoux said, “so this (store) has been here my whole life.”
The store’s closing will leave a hole in the business landscape of Muskegon Heights, said Natasha Henderson, the city manager who is also heading up the city’s Downtown Development Authority.
“It’s very sad to hear they’re going out of business,” Henderson said. “When I heard about it, it was like an empty feeling. I see that building every morning when I go into work.”
In 1946, the store was located at 787 Apple, on the corner of Apple Avenue and Getty Street. In 1951, Potter and Howard moved the business to Peck Street in Muskegon Heights, where it has remained — until now.
“You don’t get that very many places,” Schoonbeck said.
After so many years working together, theirs is deeper than the usual employer-employee relationship. A small staff, they’ve been to weddings and funerals, birthdays and graduations together. They’ve worked long hours, side-by-side, waiting on customers, doing whatever needed to be done.
They are more like a “family” than a staff closing up shop, Schoonbeck said.
“Phyllis said to me, ‘Will you be with me to the end?’ and I said hopefully we’ll be able to walk out the door, lock it and say goodbye,” Schoonbeck said.
“I can’t tell you how many times customers have asked me: Which (lamp) do you like best? Which would you choose?” Schoonbeck said. “Well, it’s not my house, but I like this one.”
After 28 years on the job, Schoonbeck has helped people decorate three or four houses, easing them through the arduous task of finding just the right fit each time. Furniture stores and decorators from all over West Michigan have sent customers to Potter’s because of the quality of their lamps and their repair department: Mosher.
“I’ve never found a light I can’t fix,” Mosher said.
At the time he was working on a fluorescent light fixture that had seen better days, brought in by an elderly man who didn’t want a new one. He wanted this one fixed. Mosher went to work. Within an hour, the customer walked out happy, no cost for labor, only $6 invested in new bulb.
“To me, the customer service we’ve provided, that one-on-one service, set us apart,” Mosher said.
That’s what brought Ron and Louise Robidoux of Norton Shores into the store, unaware that the business was closing or a 25 percent-off sale was in progress at the time. They were in the market for a new kitchen light, but they’d left the paper with all the measurements on it at home. Schoonbeck helped them through: Did they have 8-foot ceilings at home? What size was the fixture they had now?
Before long, they made their decision — but not without a certain sense of sadness.
“I grew up in the Heights,” Ron Robidoux said, “so this (store) has been here my whole life.”
The store’s closing will leave a hole in the business landscape of Muskegon Heights, said Natasha Henderson, the city manager who is also heading up the city’s Downtown Development Authority.
“It’s very sad to hear they’re going out of business,” Henderson said. “When I heard about it, it was like an empty feeling. I see that building every morning when I go into work.”
In 1946, the store was located at 787 Apple, on the corner of Apple Avenue and Getty Street. In 1951, Potter and Howard moved the business to Peck Street in Muskegon Heights, where it has remained — until now.
“You don’t get that very many places,” Schoonbeck said.
After so many years working together, theirs is deeper than the usual employer-employee relationship. A small staff, they’ve been to weddings and funerals, birthdays and graduations together. They’ve worked long hours, side-by-side, waiting on customers, doing whatever needed to be done.
They are more like a “family” than a staff closing up shop, Schoonbeck said.
“Phyllis said to me, ‘Will you be with me to the end?’ and I said hopefully we’ll be able to walk out the door, lock it and say goodbye,” Schoonbeck said.
2011年11月2日星期三
Only E23 000 to fix Somhlolo lights
This comes after a number of games were stopped at the venue due to the malfunctioning floodlights yet government through the ministry of sports, culture and youth affairs had reportedly set aside a whopping E750 000 in their last financial year to fix the lights but in vain.
The ministry is in charge of the venue hence the task of fixing the lights has been placed solely on the ministry until the PLS came to their rescue.
Information gathered by this publication yesterday is that the PLS forked out the said amount to purchase bulbs to be used in boosting the lighting system at the venue.
Staffers from the ministry of works and transport that are in charge of the maintenance of the lights were hard at work for the better part of yesterday fixing the lights.
This was ahead of tonight’s MTN Premier League match pitting Correctional Services side Green Mamba and capital city giants Mbabane Highlanders which is billed for this venue.
An engineer from the works ministry confirmed that the lights are now far better than they were in the past.
Meanwhile, PLS Acting Chief Executive Officer (CEO) Zwelonke ‘Sport’ Dlamini, when reached on the matter, did not want to reveal the figures involved in the whole project.
“I cannot reveal figures but can confirm that we had to use a certain amount to purchase what was needed to fix the lights. We will be able to reveal the figures at a later stage,” said Dlamini.
Dlamini further said they would be touring the stadium to assess the lights this morning ahead of tonight’s clash.
He assured that the venue, whose functioning of floodlights is suspect, will be ready for the encounter as already the lights are being fixed.
The CEO also revealed that the return match will then be played in Kinshasa, DRC on the following Tuesday, November 15, starting at 3pm.
Mngomezulu said soon after next Friday night’s match, Sihlangu would then get ready to leave the country either the following day or day after to be in time to honour the return match. “It is becoming normal for national teams to play like this just like in Europe.
“We are hoping the squad will do quite well during both encounters in order to qualify for the next round of the qualifiers,” Mngomezulu said.
Sihlangu have been using the Mavuso sports centre in recent official games but Mngomezulu insisted that Somhlolo is one of the stadiums that were assessed and given thumbs up by FIFA.
The ministry is in charge of the venue hence the task of fixing the lights has been placed solely on the ministry until the PLS came to their rescue.
Information gathered by this publication yesterday is that the PLS forked out the said amount to purchase bulbs to be used in boosting the lighting system at the venue.
Staffers from the ministry of works and transport that are in charge of the maintenance of the lights were hard at work for the better part of yesterday fixing the lights.
This was ahead of tonight’s MTN Premier League match pitting Correctional Services side Green Mamba and capital city giants Mbabane Highlanders which is billed for this venue.
An engineer from the works ministry confirmed that the lights are now far better than they were in the past.
Meanwhile, PLS Acting Chief Executive Officer (CEO) Zwelonke ‘Sport’ Dlamini, when reached on the matter, did not want to reveal the figures involved in the whole project.
“I cannot reveal figures but can confirm that we had to use a certain amount to purchase what was needed to fix the lights. We will be able to reveal the figures at a later stage,” said Dlamini.
Dlamini further said they would be touring the stadium to assess the lights this morning ahead of tonight’s clash.
He assured that the venue, whose functioning of floodlights is suspect, will be ready for the encounter as already the lights are being fixed.
The CEO also revealed that the return match will then be played in Kinshasa, DRC on the following Tuesday, November 15, starting at 3pm.
Mngomezulu said soon after next Friday night’s match, Sihlangu would then get ready to leave the country either the following day or day after to be in time to honour the return match. “It is becoming normal for national teams to play like this just like in Europe.
“We are hoping the squad will do quite well during both encounters in order to qualify for the next round of the qualifiers,” Mngomezulu said.
Sihlangu have been using the Mavuso sports centre in recent official games but Mngomezulu insisted that Somhlolo is one of the stadiums that were assessed and given thumbs up by FIFA.
2011年11月1日星期二
Hit Efficiency Out of the Park with Advanced Lighting Control
Energy efficiency is potential opportunity residing in commercial building systems. If tapped, it is profit that grows annually as energy prices rise. Yet for as long as this opportunity is left untapped, it becomes more costly to implement.
In October 2009, the average cost per kilowatt-hour was approximately $0.10 for commercial buildings, 42 percent higher than the average for the year 1999. Typically the largest and least controllable load in a commercial building, lighting accounts for 20 to 40 percent of the average business’ electric bill and 25 percent of an average building’s total energy use (including electricity and all other fuels).
A large portion of this rising cost is avoidable. According to the Lawrence Berkeley National Laboratory, about $130 to135 billion, or 57 to 59 percent, of the some $230 billion annual cost of global lighting could be saved by using commercially available energy-efficient lighting technologies – with 25 to 40 percent of those savings achievable in the commercial sector.
Within this context, advanced lighting control provides a platform able to accomplish a broad spectrum of integrated strategies for the purpose of energy management, such as smart time scheduling, occupancy control, load shedding, daylighting control, task tuning and personal lighting control. Good systems are simple to design, install and use. They adapt to future needs and lend themselves to both retrofit and new building applications.
Considering that November is the month the sports world completes its seasonal transition from baseball to football, this is an opportune time to focus on a case study involving the implementation of advance lighting control in a high-profile stadium – namely, Rogers Centre in Toronto, Ontario.
Employing a customized approach, the advance lighting control system at Rogers Centre was designed to accommodate needs and usage in a number of distinct areas. For example, in the parking garage - where the lights previously had not been switched off in 18 years – it provided for occupancy sensor based switching control on a zone basis. Additionally, the eight-foot, T12, 96-watt lamps were changed out with two, four-foot T8, 32 watt lamps and electronic ballasts.
In the concourses and stairway areas, a combination of occupancy sensing and time-scheduled switching (based on building events) was employed. The existing, 175-watt metal halide fixtures were retrofitted with two, 32-watt T8 lamps and standard electronic ballasts.
All office areas and lounges were equipped with personal lighting control, time scheduling, daylight harvesting and occupancy sensing technologies. Additionally, all existing fluorescent fixtures were retrofitted with new dimming electronic ballasts. The approach in the luxury boxes involved control of lighting and television circuits by time schedule, based on Rogers Centre’s scheduled events.
In October 2009, the average cost per kilowatt-hour was approximately $0.10 for commercial buildings, 42 percent higher than the average for the year 1999. Typically the largest and least controllable load in a commercial building, lighting accounts for 20 to 40 percent of the average business’ electric bill and 25 percent of an average building’s total energy use (including electricity and all other fuels).
A large portion of this rising cost is avoidable. According to the Lawrence Berkeley National Laboratory, about $130 to135 billion, or 57 to 59 percent, of the some $230 billion annual cost of global lighting could be saved by using commercially available energy-efficient lighting technologies – with 25 to 40 percent of those savings achievable in the commercial sector.
Within this context, advanced lighting control provides a platform able to accomplish a broad spectrum of integrated strategies for the purpose of energy management, such as smart time scheduling, occupancy control, load shedding, daylighting control, task tuning and personal lighting control. Good systems are simple to design, install and use. They adapt to future needs and lend themselves to both retrofit and new building applications.
Considering that November is the month the sports world completes its seasonal transition from baseball to football, this is an opportune time to focus on a case study involving the implementation of advance lighting control in a high-profile stadium – namely, Rogers Centre in Toronto, Ontario.
Employing a customized approach, the advance lighting control system at Rogers Centre was designed to accommodate needs and usage in a number of distinct areas. For example, in the parking garage - where the lights previously had not been switched off in 18 years – it provided for occupancy sensor based switching control on a zone basis. Additionally, the eight-foot, T12, 96-watt lamps were changed out with two, four-foot T8, 32 watt lamps and electronic ballasts.
In the concourses and stairway areas, a combination of occupancy sensing and time-scheduled switching (based on building events) was employed. The existing, 175-watt metal halide fixtures were retrofitted with two, 32-watt T8 lamps and standard electronic ballasts.
All office areas and lounges were equipped with personal lighting control, time scheduling, daylight harvesting and occupancy sensing technologies. Additionally, all existing fluorescent fixtures were retrofitted with new dimming electronic ballasts. The approach in the luxury boxes involved control of lighting and television circuits by time schedule, based on Rogers Centre’s scheduled events.
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