Last week, District of Columbia councilmember Mary Cheh introduced the Clean Energy DC Act of 2018, legislation that, if enacted, would require 100 percent of the electricity sold in the District to come from renewable sources by 2032. The act also specifies new guidelines for retrofitting existing buildings that emit substantial greenhouse gases into more energy efficient structures. The bill must be reviewed by committees before a vote takes place, which would probably happen sometime in the fall. In the wake of the United States' withdrawal from the Paris Climate Agreement, many U.S. cities have set their own sustainability goals, and the attempts have taken various forms, including a pledge by Saint Paul, Minnesota to make all of its buildings carbon neutral by 2050. Under the watch of D.C.'s Department of Energy and the Environment (DOEE), the New Building Emissions Standards proposed by the act would regulate the energy performance of the District's buildings and introduce benchmarks for future construction. Regulations would include cover energy usage and energy efficiency, among other topics. An incentive and financial assistance program would be set up, while penalties would be issued for buildings that fail to comply. Cheh’s office told AN that the act does not intend to create prescriptive policies aimed at restricting the building industry, but the Washington, D.C., chapter of the American Institute of Architects (AIA|DC) expressed that that is a concern. They note that the current proposal "contains ambiguity and leaves the setting of performance criteria up to D.C. DOEE staff without clear opportunity for stakeholder input,” according to an earlier comment. “The legislation puts a large administrative burden on D.C. DOEE staff to set the standards, track compliance, and enforce the requirements of the program," said the AIA|DC in a statement. "The mandate for private property owners to upgrade existing building systems and performance without accompanying financial assistance could be problematic, leading to legal challenges and potentially adversely impact development.” Despite these comments, the AIA|DC said that it is proud that the city intends to lead the nation in setting a new standard for clean energy. This is not the first time that Washington’s building sustainability efforts have come under the spotlight. Last year, the city was dubbed the “quiet capital of sustainable design” by Huffington Post. They reported that in 2016, the city’s volume of certified green buildings per capita was almost eight times that of Massachusetts, and over 11 times the average for the top ten greenest states. D.C. was later named the world’s first LEED Platinum City in recognition of the city’s efforts in reducing greenhouse gas emissions and promoting clean energy in the built environment. One innovative green building currently under construction in D.C. is the American Geophysical Union (AGU) Headquarters. Its “net zero” design means it generates as much energy as it uses. Design features include a photovoltaic array, a radiant cooling system, a green wall, a direct current electrified grid, a water reclamation cistern, and a municipal sewer heat exchange system. The building is seeking the Net Zero Energy Building (NZEB) Certification by the International Living Future Institute.
Posts tagged with "LEED Platinum":
HOK’s Mercedes-Benz Stadium in Atlanta, Georgia, just became the first LEED Platinum–certified professional sports stadium in the world. The $1.5 billion project opened in August and is best known for its operable, aperture-shaped roof, but HOK and Buro Happold Engineering have also integrated a suite of sustainability features into the base design of the stadium. Replacing the now-defunct Georgia Dome as the home of the Atlanta Falcons, the 2-million-square-foot, 71,000-seat Mercedes-Benz Stadium is styled after the Roman Pantheon, as the entire arena is centered around a domed oculus. Because the building is multi-use—designed for holding football, soccer, and basketball games—and because Falcons owner Arthur Blank had wanted to build what he described as an “iconic stadium” with a retractable roof, a watertight aperture was designed for the roof. Comprising eight 200-foot-long, 450-ton blades clad in Ethylene Tetrafluoroethylene (EFTE) film, the roof’s semi-transparent iris is capable of opening and closing in only nine minutes. Because every petal needs to swing into place at a different speed, not rotate like a true aperture, the roof uses an algorithm to judge how much counter-balance is needed while the blades are cantilevering out over the field. Reinforcing the centralized focus of the design is a 350-ton, six-story, ring-shaped “Halo Board” seated inside the oculus itself that’s viewable from every seat and angle. Outside, the stadium’s base is a wall-to-ceiling glass curtain wall meant to give uninterrupted views of the surrounding city as fans make their way to their seats. Eight steel and glass “leaves” radiate out from the aperture at the top of the stadium and drape down over the glass at the bottom, referencing the swooping wings in the Falcons’ logo. According to HOK, Mercedes-Benz Stadium’s LEED score of 88 points is the highest of any sports venue. Through the use of its 4,000 photovoltaic panels, the stadium produces enough solar electricity to power nine football games, or 13 soccer games. By using water-conserving fixtures and infrastructure adjustments, the building uses up to 47 percent less water than a building of comparable size. The location was also key, as the stadium is located between three MARTA bus lines and next to a forthcoming 13-acre green space that fans can use between games. The site also features electrical vehicle charging stations, bike parking, and new pedestrian paths. An incredibly complex project that required coordination between architects and structural engineers at every step of the way, the stadium still isn’t fully operational even though it’s in use. Work on the roof is still ongoing, and engineers hope to have the aperture fully functional by the time Atlanta hosts the Final Four basketball tournament in 2020. The stadium's innovative high performance facade will also be discussed more in-depth at Facade Plus's Atlanta conference in January 2018.
New York’s enormous Javits Center could grow $1 billion larger with Cuomo’s plan and FXFOWLE’s design
As part of a package of proposals for his 2016 agenda, development on Manhattan's West Side will intensify. Governor Andrew M. Cuomo recently revealed a $1 billion plan to expand the Jacob K. Javits Convention Center. The expansion, designed by New York–based FXFOWLE, calls for adding 1.2 million square feet of event and meeting space, as well as a four-story, 480,000-square-foot parking garage to house the 20,000 or so tractor-trailers that bring event supplies to and from the venue each year. The Javits Center, between West 34th and West 40th streets along 11th Avenue, is one of the nation's busiest convention centers. The state estimates that the convention center generated $1.8 billion in economic activity in 2014. Cuomo's proposal would add 1.2 million square feet of space to the 2.1 million-square-foot venue, increasing its size by 50 percent. Upgrades include 500,000 square feet of uninterrupted event space, as well as a 60,000-square-foot ballroom. The parking facility will improve pedestrian safety by diverting trucks from the streets surrounding the Javits Center into a central delivery area with 35 loading docks. The venue is aiming to up its current LEED Silver certification to LEED Platinum with energy-saving upgrades. 2014 renovations added a 6.75 acre green roof, new flooring, and a new facade. A 34,000-square-foot solar energy array, the largest on any public building in New York, will be installed to complement these upgrades. Additionally, a terrace with a 2,500 person capacity will be built to take advantage of sweeping Hudson River views. Construction is expected to begin in late 2016. See the gallery below for more images of the planned renovations.
The final bucket of concrete anointed the top of Kohn Pedersen Fox's 10 Hudson Yards today. Built to LEED Platinum standards, the 52 story office building, at 30th Street and Tenth Avenue in New York City, is the first of sixteen buildings on the 28 acre site. Unusual among commercial skyscrapers in New York, a concrete superstructure and a concrete shear wall account for 98 percent of the building's weight. So far, SAP, VaynerMedia, Coach, and L'Oréal, as well as four other undisclosed tenants, will move into the 1.7-million-square-foot tower beginning March 2016. If they leave their desks, workers can enjoy direct access to the High Line from the building, as well as Hudson Yard's 14 acres of open space. Developers Oxford Properties Group, Related Companies, and Tutor Perini reinforce the building's luxury branding by noting that its three stormwater tanks can hold 1.3 million grande pumpkin spice lattes.
Last week Cincinnati officials lauded the opening of a new police station that they're calling one of the nation's greenest buildings devoted to public safety. Cincinnati-based emersion DESIGN led design on the new Police District 3 Headquarters, which will be LEED Platinum and net-zero, producing as much energy on site as it consumes, according to city officials. The building's design/build team also included Messer Construction, CMTA Engineering, Human Nature Landscape Design, Strand Associates, and Genesis Design. Geothermal heating and cooling complements the building's tightly sealed envelope, as well as other efficiency measures that cut its energy demand in half relative to similar 24/7 public safety buildings, while solar photovoltaic panels offset its electricity consumption. At 39,000 square feet, the new headquarters more than doubles the previous Warsaw Avenue facility, which first opened in 1907. The new building at 2300 Ferguson Road in Westwood will house roughly 200 employees. Following the playbook of Cincinnati Public Schools, the new district HQ will also incorporate public art and host community events in an attempt to soothe a sometimes fraught relationship with police. In 2001 Cincinnati grabbed national headlines when widespread protests seized the city following the police killing of unarmed Timothy Thomas. (Cincinnati police have also earned national media attention for substantial reforms since the riots.) “It used to be that when cities built civic buildings like this, they were places the community could come together,” said Mayor Mark Mallory at the building's groundbreaking in 2013. “With District 3, we’re doing that again. We want people to come here and feel comfortable coming here with their neighbors.”
Work is currently underway on a new mixed-use development at Ohio's Oberlin College that, once complete later this year, will include one of only a handful of hotels pursuing LEED Platinum certification in the United States. The hotel operator is Olympia Companies, based in Portland, Maine. In addition to 70 guest rooms, the building features a restaurant focused on local food, 10,000 square feet of retail, a conference center, and a basement jazz club. Rounding out the facility's 105,000 square feet will be offices for the college's admissions and development staff. The Peter B. Lewis Gateway Center, developed by Cleveland's Smart Hotels, was planned to be “the cornerstone of Oberlin's Green Arts District,” at the intersection of North Main Street and East College Street. Chicago architects Solomon Cordwell Buenz designed the project, which will draw on Oberlin's existing 13-acre solar photovoltaic farm adjacent to campus. Smart Hotels' Christopher Noble said the design team worked with the New York office of Germany's Transsolar on the development of that solar farm, and the new building will not throw Oberlin off its target of purchasing 100 percent renewable energy for electricity by the end of 2015. Mechanical engineers KJWW helped finesse the building's fully radiant heating and cooling, which employs no forced-air ventilation—although some back-of-house areas will still use some water-source heat pumps, Noble said. “We're relying on nonconventional HVAC systems,” said Noble, who added that heating and cooling needs will be fulfilled fully from geothermal wells on site. The building is expected to be certified LEED Platinum after opening early next year. While the design team hasn't assessed the payback period for the building's sustainable features, Noble said Oberlin made energy efficiency a project priority. “It wasn't a cost issue,” he said. “It was a design issue—we were going to make a statement and do this.” Of the $35 million total project cost, $12 million came from outside donors, including $5 million from the building's namesake, the late philanthropist and chairman of Progressive Insurance Company, Peter B. Lewis.
The Queen of Swoop, Zaha Hadid, has unveiled her latest project: the upcoming headquarters for Bee'ah, a waste management company based in the Middle East. The roughly 75,000-square-foot structure, in the city of Sharjah in the United Arab Emirates, keeps a low-profile in its desert environment by taking the form of the surrounding sand dunes. "The formal composition of the new Bee’ah Headquarters building has been informed by its desert context as a series of intersecting dunes orientated to optimize the prevailing Shamal winds, and designed to provide its interiors with high quality daylight and views whilst limiting the quantity of glazing exposed to the harsh sun," Zaha Hadid Architects said in a statement. The two main "dunes" of the structure rise out of the sand and intersect, creating a courtyard, or what Hadid calls "an oasis." This is intended to create a meeting space that also maximizes indirect sunlight and enhances ventilation. The "oasis" is part of the firm's overall strategy to create a LEED Platinum building that produces zero waste. "Zaha Hadid Architects will collaborate with engineer Buro Happold and environmental consultant Atelier Ten to ensure the project minimises material wastage and energy consumption," reported Deezen. "A ventilation energy recovery system will reduce the need for mechanical cooling systems, while photovoltaic cells will be integrated in the surrounding landscape to provide the building with solar power." Bee'ah will use its headquarters as an educational center that teaches the community about caring for the environment. Hadid won an international competition for the commission last year.
The Vancouver-based New Buildings Institute (NBI) tracks energy efficient built work, and their 2014 update, “Getting to Zero”, provides a snapshot of the emerging U.S. market for net-zero buildings—those are structures that use no more energy than they can gather on site. In the United States, California leads in the number of low and zero energy projects with 58, followed by Oregon (18), Colorado (17), Washington (16), Virginia (12), Massachusetts (11), Florida (10), Pennsylvania (10), Illinois (8), North Carolina (8), and New York (8). NBI also compiled a database of all their buildings. They say architects and developers interested in pursuing net-zero design could find inspiration there, searching according to their local climate and/or building characteristics. The database includes energy-efficient and high-performance buildings that are not net-zero, as well. Though the trend has succeeded in garnering attention and excitement among many designers, true net-zero buildings remain elusive in the built environment. So far NBI has only certified 37 buildings as net-zero. That ranking is based on performance—each building underwent a review of at least 12 months of measured energy use data. If piece-meal projects aren't yet adding up to a groundswell of net-zero design, NBI is also pushing systemic change—rigorous energy efficiency standards recently adopted in Illinois took cues from the group's Core Performance Guide.
In September the Chicago-based Council on Tall Buildings and Urban Habitat (CTBUH) gathered high-minded designers, developers and engineers for a conference in Shanghai. CTBUH, which often partners with AN on conferences, including our own Facades+ events, invited me to serve as a special media correspondent for the conference, held September 16–19. I spent most of the time conducting video interviews with the symposium guests, which we'll post here on the AN blog as they become available. For now, here' a quick overview of the topics discussed. The theme of this year's conference was “Future Cities: Towards Sustainable Vertical Urbanism.” It was an especially relevant topic given the venue—held in the elegant, SOM-designed Jin Mao Tower, the conference looked for lessons (and warnings) in the kind of supertall, super-dense development that turned the Lujiazui area of Shanghai's Pudong district from farmland into a world financial center in just 20 years. Symposium presenters tackled sustainability from several angles. Matthew Clifford, head of energy and sustainability services for North Asia at JLL, stressed building operation and management is as important as design when it comes to energy use and building performance. Cathy Yang, manager of Taipei 101, recounted how “greening” the 101-story building did not turn a profit until the initiative's sixth year, but then made up for it in just three years. The Taiwanese supertall remains the largest LEED Platinum–certified building in the world. Jianping Gu of Shanghai Tower Construction and Development espoused the benefits of the “stereoscopic” form of his building, which at 2,073 feet is set to become the tallest building in China upon completion next year. “If you compare Shanghai Tower to Taipei 101, Petronas Towers, those were all isolated," Gu said. "There were already two towers in the vicinity when we started. We had to pay particular attention to harmonizing with those buildings. We consider this an issue of sustainability.” But towering, monumental architecture may not be for everyone. David Gianotten, an OMA partner heading the firm's Hong Kong office, told me OMA gets so many briefs seeking “iconic” design that the word has begun to lose its meaning. “If everything's special, then nothing's special,” he said. That debate continued onto the conference floor, where developers discussed how China's third- and fourth-tier cities should embrace the tall building boom—or whether they should at all. On the conference's final day, Mun Summ Wong of Singapore-based WOHA talked about the psychological environment of horizontal cities, and how tall buildings should better embrace the human scale. “The idea is to inject more urban life into the high-rise city,” Wong said. “We introduce horizontal movement in the high-rise building because it changes the dynamic. When you talk to the people next to you in an ordinary high-rise, it is considered rude. But in the street, you talk to people, build relationships and bonds.” Similarly, Yang Wu of the Bund Finance Center warned of the risks of homogeneous skylines. “When I open my eyes in the morning and I am in Shenzhen, I still think I am in Shanghai because they look the same,” he said. “[China is] duplicating buildings and the mistakes of the West. There is focus on building bizarre and tall buildings but ignorance of the connotations–resulting in cold buildings for cold cities. As a developer, I call on architects: you need to have your own independent ideas that bring vitality.” You can read more about the conference on CTBUH's website. Check back here as we post video interviews.
A new international airport for Mexico City won't just fix the problems of its predecessor—which typically delays planes because the two runways were built too close together—it will be unique in its efficient expansive single enclosure, according to its architects, Foster + Partners and FR-EE. Foster and FR-EE were announced as the winners of a design competition last Tuesday, in which all the finalists had worked with local design talent. Mexico City-based FR-EE's founder Fernando Romero is married to Soumaya Slim, a daughter of Mexican tycoon Carlos Slim. The new airport, which aims to become the busiest in Latin America, has received a $9.17 billion pledge, partly in public land from President Enrique Peña Nieto. The government will finance its early construction, issuing bonds for later stages of development. Officials estimate Mexico will receive $19.6 billion in additional tourism revenue through 2040 as a result of the new airport. It will accommodate more than 100 million annual passengers. At more than 6 million square feet, the new airport will be one of the world's largest. It's also labeling itself the most sustainable. While still a complex committed to promoting air travel, a substantial contributor to global emissions of carbon dioxide, its layout is intended to be entirely walkable and won't need heating or air conditioning for most of the year. Foster + Partner's website said the project will be LEED Platinum:
The entire building is serviced from beneath, freeing the roof of ducts and pipes and revealing the environmental skin. This hardworking structure harnesses the power of the sun, collects rainwater, provides shading, directs daylight and enables views—all while achieving a high performance envelope that meets high thermal and acoustic standards.Organized around a single massive enclosure, the airport weaves cavernous, naturally ventilated spaces around an organic "X" shape that appears in plan like a cross section of DNA. The lightweight, pre-fab structure will open its first three runways by 2020. Another three runways, set to open by 2050, will quadruple the airport's current capacity. Mexico City's current airport, Benito Juárez International, will eventually be closed and rehabbed into a commercial development and public park. The design competition that preceded this week's unveiling drew high-profile names, including Zaha Hadid, Richard Rogers, and Pascall+Watson. Mexican-American architect and partner at JAHN, Francisco Gonzalez-Pulido, also submitted a design to the competition, but was ultimately unsuccessful. He teamed up with local designers Francisco Lopez-Guerra of LOGUER and Alonso de Garay of ADG for the airport, whose form evokes both flight and traditional Mexican art. A pyramidal arrangement of structural white "umbrellas" transmit light while shielding occupants from the hot Mexican sun.
The Gensler-designed Capitol Tower, a 34-story speculative office building developed by Skanska USA on the site of the former Houston Club in downtown Houston, Texas, has been awarded Platinum Pre-Certification under the U.S. Green Building Council's LEED v4 ranking system. According to a press release put out by Skanska, the project is one of only a handful of in-the-works buildings to earn the distinction under the fourth generation of the LEED system. The company also stated that it wished Capitol Tower to be the greenest building in Houston. The design includes a high-performance facade system, daylight harvesting technology to reduce energy use, 90 percent access to daylight and views for tenants, a garage with daylight occupancy sensors and a green roof, alternative vehicle charging stations, a rainwater collection system, and bicycle amenities to encourage cycle commuting, among other sustainable features. “Skanska made it clear from the beginning of the design process that they wanted this to be the most sustainable building in Houston,” Gensler principal Kristopher Stuart said in a statement. “We really pushed our team to move beyond anything we have done before to create a building that offers an exceptional work environment in a high-performance envelope that will dramatically reduce operating costs. The design also places an extraordinary emphasis on public spaces and pedestrian experiences which we believe will greatly enhance and enrich Houston’s urban fabric." Under the LEED system, pre-certification allows owners to begin to market the proposed green features of a project to prospective tenants who wish to occupy a LEED certified space. Earning a pre-certification is not a guarantee of actual LEED certification. While the pre-certification review is conducted in the same manner as a combined design and construction review, no credits or pre-requisites can be awarded. They are instead marked as "anticipated." In addition, only projects registered under the LEED for Core & Shell rating system can apply for pre-certification.
It has been a rocky few months for the New York City Housing Authority (NYCHA), but the battered agency finally has some good news to report. State officials announced the opening of the Arbor House, a 124-unit affordable housing complex, located in the Morrisania section of the Bronx, that is not only LEED Platinum certified, but also features a hydroponic farm on the roof that supplies residents and the surrounding community with fresh produce. Built from local and recycled materials, the 8-story building was designed by New York-based ABS Architecture and includes a living green wall installation in the lobby, air-filtration systems, and indoor and outdoor exercise areas. This $37.7 million housing development came out of a collaboration between city agencies and Blue Sea Development, and according to The New York Observer, is part of a larger initiative by Mayor Bloomberg, which “pairs dilapidated and vacant NYCHA land with private developers to create affordable housing.” The apartments are reserved for low-income households that earn less than 60 percent of the city's median income. Residents will start moving in within the next month.