PANSTADIA & ARENA MANAGEMENT WINTER 2013/14 What happens in a renovation?


Hart: The fi rst step in any renovation is a full assessment, including the MEP systems. From there you can determine which systems and components must be completely removed and what can remain.


For example piping systems, with their 40-45 year lifespan, may remain while the pumps and chillers will need to be replaced resulting in improved effi ciency. Air handlers, especially large units serving seating bowls, may have originally been shoehorned into the building or literally built around during initial construction. This can make replacement cost prohibitive when compared to a full refurbishment addressing things like motors, bearing, dampers and controls. Even today it is still not uncommon to fi nd older VAV air systems utilising inlet guide vanes on fans instead of VFDs (variable speed drives). Changes like that are easy to make, with a good payoff in energy savings.


What are the best tactics when powering a one-off event such as a Superbowl or an Olympics?


Marschke: Each event has different requirements, different resources available, and different challenges. These special events bring more fans than stadiums typically accommodate, and many surrounding users to provide extra services, i.e. enhanced television broadcast, large amounts of written press media, enhanced security, extremely large staffs of workforce and volunteers, corporate and sponsor hospitality and many times ceremonies for medals; or in the case of the Super Bowl and an Olympic opening/closing ceremony, a large stage production. The additional required electrical loads required to energise the event enhancements can range from 4 MVA to 25 MVA.


We always begin by doing a thorough venue audit to see what’s available and how those capacities can be used. The overlay design takes into account anticipated loads and unique redundancy requirements. Especially in large events more uses are considered ‘event critical’ and require additional backup and emergency power, including television broadcast, security, technology, timing and scoring, medical facilities. Recent issues at large events have placed the fi eld of play lighting into that event critical category, especially with HID type light fi xtures which can take up to


44 Consol Energy Center achieved LEED Gold.


20 minutes to restrike once a power failure occurs.


Any additional power needed is generally supplied by: redistributing existing venue capacity, temporary utility power and temporary generators. Each has its pros and cons. The overlay design balances the needs, costs, and environmental concerns to come up with the best solution for a particular site and venue.


What role do you play in the LEED certifi cation process?


Mehta: We play an imperative role in the LEED certifi cation process. From providing key input, guidance to the design & construction teams and documentation of credits relating to our disciplines of mechanical, electrical, plumbing, technology, architectural lighting, and sports lighting to a more substantial role of shepherding the entire LEED process for some of our international sporting projects.


Many countries have developed rating systems to defi ne measure and benchmark ‘green buildings’. BREEAM is a voluntary measurement rating established in the UK by the Building Research Establishment (BRE) and is a vigorous environmental assessment method. The well-recognised US Green Building Council’s (USGBC) Leadership in Energy and Environmental Design (LEED) rating system is another framework. LEED targets effi ciencies in categories of: Sustainable Sites, Water Effi ciency, Energy & Atmosphere, Materials & Resources and Indoor Environmental Quality. The intent is to promote healthful, durable, affordable, and environmentally sound practices in


showcase CONSTRUCTION & ENGINEERING


building design and construction. Neither LEED nor BREEAM address sports venues specifi cally. The relatively new Global Sustainability Assessment System (GSAS) addresses unique regional needs in Qatar and actually does have a sports-specifi c rating scheme. What’s important to realise is that these systems aid the design process and provide a ‘road-map’ for sound construction practices, but all have limitations. It is up to the design and construction professionals to use them to foster creative and responsible design and construction methods for sustainable stadiums.


It has been an interesting process applying these rating systems to sports venues. We are proud to have been involved in many pioneering efforts with LEED and sports facilities. These facilities have some unique challenges that other building types usually don’t, like immovable deadlines, public budgeting and accountability, technology readiness, and lack of reliable benchmarking in general to measure them against.


Nationals Park (LEED Silver) is the world’s fi rst major professional stadium to become LEED Certifi ed by the US Green Building Council; Consol Energy Center (LEED Gold) became the fi rst NHL arena to achieve LEED certifi cation; Target Field achieved LEED Silver Certifi cation, only the second MLB ballpark to attain such a lofty standard; the new Miami Marlins Ballpark is the fi rst retractable-roof stadium to be LEED Gold Certifi ed and the 2014 FIFA World Cup Stadium in Brasilia, Brazil, has set the very aggressive goal of LEED Platinum certifi cation. 


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