HH Angus and Associates congratulates Cadillac Fairview on achieving this major milestone.  We are proud to have been the mechanical and electrical consulting engineer to Cadillac Fairview and the TD Centre since it was first conceived in the late 1960s, and we’re currently working on CF’s infrastructure renewal program for the TD Centre.  Designed by world-renowned architect Ludwig Mies van der Rohe, two of the iconic TD towers are already certified LEED Gold and now 100 Wellington West has been certified LEED Platinum.  The TD Centre changed the landscape of Toronto’s downtown core, and its design has influenced many buildings across the country.

Following is an article by Paul Brent.  It appeared in Property Biz Canada on October 2nd, 2012.

Cadillac’s green focus pays off with Platinum Tower

While the glitter of platinum will likely catch the eye of property owners and managers across the country, it was a long-running and comprehensive approach to environmental sustainability that resulted in Cadillac Fairview securing LEED Platinum certification for its 100 Wellington St. West building in Toronto.

While Cadillac is accepting kudos and attention for landing the first platinum certification in the city for an office tower, the win is part of a lengthy program for the six-tower, 4.3-million square-foot Toronto-Dominion Centre complex.

“We do have a big plan here at the TD Centre, the 100 Wellington St. West tower is the third tower out of six to be certified,” said David Hoffman, general manager of the TD Centre.  The first two towers (77 King St. West and 79 Wellington West) were both certified LEED Gold and Hoffman expects the final three buildings to be certified by the end of 2013 with either a gold or platinum certification.

The success of 100 Wellington West is even more impressive when one considers the 33-storey tower is nearly four decades old (the handsome, Ludwig Mies van der Rohe-designed black building was completed in 1974).  “This is a great example even in an older complex that you can achieve it with hard work and dedication,” said Hoffman. “The reality is there are no easy answers, just hard decisions.”

Comprehensive approach works for Cadillac

So just how was Cadillac able to secure the city’s first LEED Platinum certification?

“I have been asked that question a couple of times and it wasn’t so much what we did differently but what we already were doing and how we used LEED,” said Hoffman. “Unlike other properties or other towers that go after LEED certification, we didn’t use LEED as a scorecard to simply begin the implementation of a program or initiative.” Instead, LEED was used to validate existing programs that are already used in 100 Wellington West and other buildings in the complex.

The centre’s GM rhymed off examples: the TD complex was among the first to hook into the Enwave deepwater cooling system (in 2004), which serves the financial district, and can be considered the start of the series of green measures; it was one of the first property owners to install tenant sub-metering systems on every floor, “which allows tenants to view and manage their specific use of energy in real time;” and the implementation of a washroom fixture upgrade program (faucets, toilets and urinals) and an overall smart-water system.

Tenants getting green too

The TD Centre also got tenants involved beyond installation of their energy meters. It created the Tenant Green Council Occupant Engagement Program (which just won the Pinnacle award at BOMA National, Hoffman said).

The eight-tenant council, representing some of the TD Centre’s largest tenants, has been involved in a series of initiatives that include “green behaviours, practices, consciousness that in turn, drive conservation,” explained Hoffman.

The council is set up to run cross-complex campaigns. Last year, it ran an energy-saving campaign that resulted in the reduction of 2.4-million kilowatt hours. It is currently in the middle of a waste campaign and organizers hope to improve the TD Centre’s already impressive diversion rate of 80 per cent.

Next up is an air campaign attempting to improve both interior and exterior air quality. Success will be hard to measure, the general manager admits, but the TD Centre does have one advantage out of the blocks: it already conducts annual indoor-air-quality testing and publishes those results publicly, “good or bad.”

Competitors taking notes

The TD Centre’s platinum and gold sheen has not gone unnoticed in the commercial space, said Hoffman, whose centre was cited last week as one of “Ten reasons to be optimistic about Toronto” in a Toronto Star article by architecture writer Christopher Hume. 

“I was in a meeting with Oxford and they remarked and congratulated (me) on this. I also had Menkes, the general manager of the Telus tower, call me and congratulate me,” said Hoffman. “He wants to take his operations team through a tour of the TD Centre and specifically that tower.”

Not as pricey as you may think

How many millions did 100 Wellington’s platinum certification cost, you may ask?

“I would have asked that for 77 King St., which was the first commercial office tower to achieve LEED certification by Canadian standards,” explained Hoffman. At that TD Centre building big bucks were devoted to replacing the windows to achieve LEED status. “[77 King St.] would have been in the millions of dollars, this is not in the millions of dollars here (at Wellington West).” The Enwave installation was amortized over many years and the other upgrades to the tower have been carried out gradually.

“It is not in the millions of dollars, I am not trying to be elusive here. I simply don’t know how much this would have cost us.”

The successful certification of 77 King St. West was followed last year by 79 Wellington West (better known as the TD Waterhouse Tower). Both achieved gold status. The final three are the main TD Bank Tower (next in line for certification), followed by the Ernst & Young Tower (222 Bay St.) and finally 95 Wellington.

“We are targeting one more to be platinum,” said the TD Centre, who declined to single out the tower he believes can achieve top LEED status. Cadillac has already submitted for the TD Bank tower and is now going through the LEED program’s one-year performance period.

Lambert’s folly a triumph

The TD Centre was an enormous gamble for TD Bank to make in the 1960s when Toronto was a second-tier financial capital. The bank’s Chairman, Allen Lambert, pushed for a modern tower with development partner Fairview Corp. After hiring architect Ludwig Mies van der Rohe, his initial design called for “a bold, two-tower design plus Banking Pavilion,” according to the TD Centre website. That grew to encompass an underground retail mall and the original black tower grew to five buildings. The addition of 95 Wellington St. in 1995 brought the complex to a total of six towers.

TD Bank took up only seven floors of the first tower, which meant over one million square feet of space would need to be leased to other tenants in the initial phase, leading other business leaders to jokingly refer to it as “Lambert’s Folly.” It’s been looking like a pretty smart decision for decades now.

Exterior and interior Casino image

Casino Rama recently hired H.H. Angus & Associates Consulting Engineers (HHA) to help them overhaul their existing power infrastructure. Today’s digital Casino offers a wide variety of electronic gaming machines that provide patrons with an unlimited amount of choice, thrilling graphics and an overall interactive playing experience.

With over 2,500 of the latest state of the art electronic gaming machines, Casino Rama is located just north of Toronto, on land belonging to the Chippewa’s of Rama First Nation, over 3 million patrons visit this popular entertainment destination annually. Concerned that power quality issues occasionally damaged the sensitive electronics in their gaming machines, Casino Rama gave HHA the mandate to find a solution that protected their equipment while minimizing the games downtime as well as the shutdowns required to implement the selected solution.

These machines offer visually stunning touch screen LCD monitors with color changing LED lighting, crisp audio systems and onboard computer systems with state of the art software. While Casino operators have a multitude of choices that are available with respect to gaming machines and the choice of games available, they are often left with little choice on the incoming power quality of their casino’s utility service. Power quality issues were increasingly adversely affecting these gaming machines and interrupting a pleasurable entertainment experience, especially during adverse weather conditions which often resulted in power disruptions. It should be noted that at no time are the security or integrity of the games affected by the power quality.

Power quality is a term that is used to determine the compatibility of an electrical power supply (voltage) to the connected consumer devices. In this case, the devices are electronic gaming machines. Issues affecting power quality can be divided into two groups: steady-state disturbances that are periodic and/or of lasting duration and event-based disturbances which are momentary in nature. Both groups are further defined by categories that pertain to voltage levels above expected tolerances, voltage levels that are below expected tolerances and momentary fluctuations in voltage. Specific examples of each type of phenomena include:

•    Failures/Blackouts/Brownouts – system outages where utility power is unavailable or operating at a reduced level.
•    Surges/Overvoltages – increased voltage magnitude for short durations or prolonged durations.
•    Sags/Undervoltages – reduced voltage magnitude for short durations or prolonged durations.
•    Frequency variations – deviation from the standard 60Hz voltage supply.
•    Switching Transients – very brief fluctuation in the magnitude of voltage, usually in the nanosecond duration.
•    Harmonic Distortions – distortion of the voltage waveform caused by non-linear loads.

HHA started the process of finding a power quality solution by analyzing Casino Rama’s existing power distribution systems, existing critical loads and plans for future electrical load growth. Existing building infrastructure was reviewed including available service space and mechanical infrastructure. A number of recommendations were put forth to Casino Rama with varying degrees of risk mitigation and budgetary requirements. Casino Rama opted to incorporate a 1.2 MW centralized uninterruptible power supply (UPS) into the portion of the existing emergency generator powered distribution system dedicated for their electronic gaming machines. In simplistic terms, UPS systems operate by converting an incoming utility power supply from AC to DC and using that power to feed a rechargeable bank of batteries. The battery bank subsequently feeds an inverter which converts DC to AC and feeds the critical loads – the casino’s electronic gaming machines. Power quality disturbances on the incoming AC supply are filtered out and there is no possibility of having any disturbances transferred through the AC-DC/DC-AC conversion process. In addition to providing protection against power quality disturbances, the centralized UPS can provide gamer’s with an uninterrupted playing experience during a utility power outage, as the UPS will bridge the gap between the onset of a utility power outage and the time it takes the Casino’s onsite 3 MW emergency generators to come online and support the critical loads. 

Implementing the centralized UPS system at Casino Rama had its own unique challenges. Available service space had to be sourced. The system had to be integrated within the facility’s electrical system, in a way that minimized the duration of machine shut-downs and tie-ins. Additional air conditioning units had to be provided to ensure that the requisite ambient temperatures are maintained for the system.  Structural reinforcement was required to ensure the floor slab was able to support the added weight of the battery banks. All of these requirements had to be taken into account when designing the project that would install the centralized UPS system. Construction documents were prepared for all of the various trades and the project was tendered to electrical contractors. The competitive bidding process resulted in a project that ensured a prescribed level of quality, with respect to construction materials and methods, at fair market value.

Since the installation of the centralized UPS system, Casino Rama has had zero power quality incidents affecting their sensitive electronic gaming machines. In addition, electrical distribution fault related downtime has been eliminated resulting in a substantial reduction in annual maintenance costs. John Haley, the Director of Engineering and EVS at Casino Rama states “The installation of protective electric equipment designed and specified by H. H. Angus and Associates Ltd. is working amazingly and has afforded us the confidence that we no longer need to pre-start all three of our 1 MW generators during every looming lightening storm”. Given the growing trends towards electronic gaming, today’s digital casino can learn an important lesson from Casino Rama and take the proactive approach towards removing power quality issues from their facility. Removing the adverse of effects of power quality issues at your casino can maximize a gaming experience that can be enjoyed by all.

Steve Smith, C.E.T. and Philip Chow, P.Eng., PE, are senior members at H.H. Angus & Associates Consulting Engineers Ltd., and specialize in critical power solutions for the gaming industry. As independent service providers, they bring a wealth of experience in electrical systems, building infrastructure and construction. H.H. Angus and Associates Ltd. is a privately held engineering firm headquartered out of Toronto, Canada, with offices in Chicago and Dallas.

Originally published in Canadian gaming business