The U.S. Department of Energy (DOE) announced the release of the third installment in a series of four 50% Advanced Energy Design Guides (AEDGs). This latest guide will help architects, engineers, and contractors design and build highly efficient retail buildings, helping to save energy and cut store operational costs. The 50% AEDG series provides a practical approach for designers and builders of retail stores, and other major commercial building types, to achieve 50 percent energy savings compared to the building energy code used in many parts of the nation. These commercial building guides support President Obama’s goal to reduce energy use in commercial buildings 20 percent by 2020. The Advanced Energy Design Guide for 50 percent energy savings in retail buildings is now available for download.

Beyond helping builders achieve efficiency exceeding the current energy code, the AEDGs also provide climate-specific recommendations to incorporate today’s off-the-shelf energy efficient building products. These recommendations help designers and builders choose advanced building assemblies, highly efficient heating and cooling systems, and incorporate other energy-saving measures such as daylighting and associated control systems. Additionally, efficiency measures found in the guides can be used in the development of future commercial building energy codes.

The 50% Advanced Energy Design Guide series is being developed through a partnership with the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), American Institute of Architects (AIA), U.S. Green Building Council (USGBC), and Illuminating Engineering Society of North America (IESNA). The Retail Buildings guide is the third installment in the 50% series, and follows the guides for small and medium office buildings and K-12 schools released in 2011. The final 50% savings guide for major commercial building types — large hospitals — is also in progress

This category evaluates candidate projects using the following metrics:

• How the building design reduces heating, cooling, lighting, and water heating loads
• How the design and integration of building systems facilitates energy conservation and reduces use of fossil fuels, green house gas emissions and other pollution, and improves building performance and comfort
• Techniques for systems integration, use of controls and technologies, efficient lighting strategies
• Use of on-site renewable and alternative energy systems
• Anticipation of future and carbon neutral fuel sources
• Strategies to reduce peak electrical demand
• How the building or parts of the building provide “passive survivability” the ability to function in the event of power outages or interruptions in fuel supply

Two Pacific Northwest projects are among the 10 recently selected for 2011 recognition.

The LOTT Clean Water Alliance Regional Service Center is a 32,500 ft2 laboratory, office and interpretive center, anchoring an urban revitalization initiative in Olympia, Washington. Methane generated form the plant waste treatment process fuels a co-generation plant, providing electricity and heat. This heat is utilized by a low-temperature water loop connected to water source heat pumps in a manner that eliminates the need for a boiler, cooling tower, or geothermal field. Motorized louvers on the west facade prevent direct sun from penetrating into the building during sunny summer days, while welcoming solar gains and daylight during winter months. The building is expected to deliver energy savings of approximately 60 percent over an ASHRAE 90.1 base case.

The Vancouver Convention Centre West is a 1.2 million ft2 convention center. The building employs a water source heat pump system that benefits from the relatively constant temperature of sea water, to increase heating and cooling efficiency. The ventilation system incorporates both heat recovery into major ventilation systems and a low-pressure fan system that reduces fan energy requirements. Radiant heating and cooling serves the exhibition halls and pre-function areas, allowing a reduction in ventilation system capacity. Daylighting sensors and lighting occupancy sensors reduce lighting loads. This facility is expected to use 60 percent less energy that the existing Vancouver Convention Centre (East).

Learn more about these two projects, including members of the project teams, at http://www.aiatopten.org/hpb/. Details are available about all ten projects.

By Brian Libby, for NEEA’s BetterBricks Initiative

In 2009, owners of one of New York City’s great architectural landmarks, the Empire State Building embarked on a renovation to reduce the skyscraper’s energy use by more than one-third by 2013. Part of an overall $500 million building makeover, the energy efficiency strategies, ranging from window replacements and insulation to electrical upgrades and tenant education, are bringing annual savings of more than $4 million, with just a three-year payback on the investment.

Originally built in 1931, the Empire State is no ordinary office building, of course, but a symbol of American achievement and strength—and now efficiency. At 102 stories with 2.6 million square feet of space, some 6,500 windows and 73 elevators, it has the scale to reap significant energy efficiency savings and to substantially reduce its more than 105,000 metric tons of carbon dioxide emissions a year. Besides many tenants now having LEED-rated interior offices, the Empire State Building is also expected to fall in the top 10 percent of ENERGY STAR office buildings when its renovation is completed, the project designers said.

More than that, though, this Art Deco icon at 34th Street and Fifth Avenue, because of its unique status as perhaps America’s most famous skyscraper, has the opportunity to serve as a model for other office buildings around the world seeking to transform.

“They’re showing the rest of the city that existing buildings, no matter how tall they are, no matter how old they are, can take steps to significantly reduce their energy consumption,” New York mayor Michael Bloomberg told The New York Times.

Recently BetterBricks’ Brian Libby spoke with Dana Schneider of Jones Lang LaSalle, VP of Sustainability Services, a global real estate services firm overseeing the Empire State Building’s green retrofit.

BetterBricks: You grew up in New York. Do you remember the first time you saw the Empire State Building?

Schneider: I was a little kid the first time. My family has lived in New York for generations. I was there several times as a little kid, but the first time I really remember it is when I was in 5^th grade. It was so huge! It was a whole city block. I remember going to the top and thinking, ‘O my gosh!’ You can see forever.  Looking down the ground almost looked fake. It put things in perspective.

The Empire State Building carries extra symbolism, doesn’t it?

Yes. In 1931 it became the tallest building in the world, and it was built during the Great Depression. Now it’s one of the world’s most energy efficient buildings, with the retrofitting work also done during tough economic times. It was a beacon of hope when it was built, and I think that’s what it is now.

Could you explain the role you played in the Empire State Building Retrofit Project and the role of Jones Lang LaSalle?

I was the program manager for all the updates that go on. I lead our work on the energy retrofit there.

You have written that in ESB “Under the plan, actions taken by tenants are expected to reduce the building’s energy use by more than 6 percent, about one-sixth of the total reduction target of 38 percent.” What tools did you develop to involve tenants?

We’ve done a lot of things. We’ve developed a set of really detailed design guidelines for building out their spaces, and how they can achieve LEED certification and built a prebuilt LEED platinum space for them to see our recommendations in action. We also have a tenant energy management program. This is actually a new technology that enables tenants to see their usage in real time and get recommendations to reduce their use. And I personally work with tenants coming into the building to make sure they integrate our recommendations. We also wrote into new leases a whole set of performance requirements such as a five year or less payback.

We understand that tenant involvement was voluntary? What percentage of tenants are participating now and how are the numbers looking re this 6%? Is ESB achieving its goals with regards to the tenant piece?

The tenant initiatives are really focused on new tenants. When we started our work, there was an existing program for tenants. They’re moving to get more prestigious tenants. New spaces will be built out this way. It’s in the lease language. We can’t make anybody do anything, especially in this market. But we present it as a massive added value. We are  providing industry leading expertise to build out these spaces at a high level: It’s like, why not? It will save money to have a better-performing space. It’s the carrot rather than the stick. And it’s a huge selling point for the building.

How have you handled long term tenant disruptions during the retrofit process?

The work that would affect tenants in their spaces is already finished. We scheduled it around them. We did work overnight and were in constant communication. We did it on overtime so we would minimize disruption. Extremely extensive work like replacing ducts was only done in empty spaces.

Were lease renegotiations part of the strategy?  If so, what new language, requirements, and sustainability language was inserted into the new leases?

There’s a huge part of the strategy in the lease with respect to payback period. I’m literally at the table supporting these people. The building is moving towards sub-metering all the tenant spaces. So it incentivizes them.

We’re trying to move to larger full-floor and half-floor tenants. At its peak there were 598 tenants. There are a little under 200 tenants now.

It’s the whole idea of a class-A asset. It’s major tenants instead of little mom and pops. A lot of that drives us. We have more opportunity to optimize spaces for performance. Those tenants tend to be stakeholders who have more interest in these issues. Whereas with a lot of smaller tenants, it might not be something they’re concerned with. Larger spaces are easier to work with, but we didn’t establish that as a goal.

You wrote back in 2009 that “with nearly 40 percent of the building’s space due to turn over within four years, the success level of the tenant engagement program will soon be evident.” What does it look like now? How engaged are the tenants and how is the retrofit impacting the lease up of the building?

They’re very, very engaged. We’re targeting new tenants, and those who have come on have been part of the process. Skanska’s office is LEED platinum, another is LEED silver. Another tenant is signing on to a half a million square feet and it will be LEED silver.

How does this project tie into the overall marketing strategy of the Empire State Building?  In what ways are you counting on the energy efficiency “story” to help add value to the property?

It’s a huge part of the marketing, the repositioning of the assets, the performance of the building and all of the environmental initiatives. It’s a class A asset now. In addion to all the upgraded infrastructure, the whole lobby has been restored to its art deco grandeur. It’s a totally different building than it was. It’s very difficult to pull out the value of an environmentally responsible retrofit or even in a new building because there are so many other aspects that add value. But it absolutely does have to do with the increased tenant retention.

How is Jones Lang LaSalle spreading this experience and tools to the rest of your portfolio? Where are you on that?

We’ve had international training sessions for our own experts. We’ve spoken at every major industry conference to make sure people understand what we did and what the benefits are—AIA and USGBC’s Green Build. We want to get the word out. We’ve done numerous publications and case studies, we have a website, www.esbsustainability.com where all of our processes are detailed for everyone to see. We’re trying to engage select corporate clients as well. We’re replicating this in about 30 buildings nationally.

What other barriers are you seeing out there now? What needs to change to help accelerate this level of renovation to the existing building stock? What new tools do we need to make this easier?

We’re working really hard at a state, city and federal levels to encourage policies that encourage retrofit. I think the greater greener building code requires a lot from building owners to make sure their buildings are operating officially: mandatory benchmarking, audits, commissioning. All of it requires better energy efficiency in buildings. And we worked with the city of New York to make sure it reflects how buildings get built. And we’re working to ensure that the incentives work too, for retrofit and for new construction. It’s a matter of getting those tools out there. The more successful cases we have, the more we can move the needle. If the only place we succeed is the with the Empire State Building than we’ve failed. It’s about convincing other people this is an intelligent business decision.

NEEA’s BetterBricks plans to launch region-wide deep renovation initiative later this year. Any words of wisdom for the Pacific Northwest?

Use our model because it works! We spent over a year developing it. We did all kinds of peer reviews. This kind of approach is extremely effective. Take an integrated approach: the envelope, but also tenant behavior. I’m a huge fan of energy modeling. It gives far more robust information. And be open-minded. Let the numbers speak for themselves. Looking at things objectively and outside the box is important: considering measures not typically thrown out there during an energy audits. And work together. We work very closely with the building managers and engineers in every project we work on.

ZGF reported that they have now benchmarked all their projects worked on by the Seattle office and were advancing with other offices. Just the fact of reporting (mostly modeled performance at this point) has had an impact on the firm’s interest in improving performance.

NBBJ has been working on reviewing and revising their practice since 2006. Part of that process has been the use of the IDL Puget Sound to help in research and tracking. In early 2008 they signed on to the 2030 Challenge of Architecture 2030 and in early 2009 they signed on the the AIA’ 2030 Firm Commitment.  Part of that commitment requires reportiong on project performance in terms of energy and carbon emissions.

Chris Jordan, a Seattle-based artist, delivered a very interesting keynote address on the impacts of mass consumption.  Check out his work here www.chrisjordan.com.

NEEA’s BetterBricks initiative will be exploring the findings from the two Northwest firms in a future article. Stay tuned.

NEEA’s BetterBricks was happy to be a major sponsor this program. This year the focus was on energy performance and water performance. For the first time, all projects were required to provide an energy consumption measure, the energy Use Index or EUI, which seems small but, in fact, is a huge step to getting all entrants to think about energy performance. In addition, the only other mandatory requirement was to describe the project team’s integrated design approach, a key process to achieve high performance buildings.

I’ll get to the award winners in a minute. First I want to share what I find stimulating about the awards process itself. To start, the jury consisted of leading sustainability experts, and not just architects. People like Bob Berkebile FAIA, Founding Principal, BNIM Architects and co-founder of COTE nationally, Don Horn AIA, Assistant Director, GSA Office of Federal High-Performance Green Buildings, Claire Johnson, Associate Director, Atelier Ten, San Francisco, and ALEX STEFFEN, Executive Editor, Worldchanging.  The jury was moderated by Nadav Malin, President, BuildingGreen, Executive Editor, GreenSource.

The Awards process began with the submittals but led to a public jury panel discussion that was videotaped for later posting on the AIA website, followed by a public jury interview of the finalist teams. Then the 11 finalist projects were printed on panels for public display and eventual shipment for display around the region, further extending the impact of the lessons generated by these projects. The Awards ceremony allowed a public discussion with the winning project teams and in the near future there will be a set of case studies and a small booklet and an issue of Seattle AIA Forum magazine describing the projects. So if you missed the other public opportunities you still have many options for viewing the projects. Web images and descriptions of these and all submitted projects can be found at http://wmig.aiaseattle.org/2010_gallery.

Finalists and Winners

Now for what you’ve been waiting for. The jury selected two Gold-level projects, one Silver, and two Honorable Mentions — one for Rural Housing and one for Cultural Sensitivity.

GOLD
King Street Station Rehabilitation, Seattle WA
ZGF Architects
Collaborators:  SMEP Engineer: ARUP; LEED Certification: Green Building Services, Inc.; Commissioning Agent: Keithly Barber Associates

Photo Credit: Seattle Department of Transportation; Museum of   History & Industry
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GOLD
Vancouver Convention Centre West, Vancouver Canada
Design Architect: LMN Architects. (Prime Architects: Musson Cattell Mackey Partnership & DA Architects & Planners)
Collaborators: Mechanical Engineer: Stantec Consulting; Commissioning Authority and Mechanical Commissioning Agent: KD Engineering Co.

Photo Credit:  LMN/Studio 216
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SILVER
Twelve | West
ZGF Architects
Collborators:  Gerding Edlen Development Company LLC ; Total Mechanical – M/E/P Engineers, Lighting Design

Photo Credit:  Timothy Hursley,  ZGF Architects LLP
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Honorable Mention for Rural Affordable Housing
Common Ground, A Co-op Neighborhood
Mithun
Collaborators: Lopez Community Land Trust.

Photo Credit:  Mithun, Juan Hernandez
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Honorable Mention for Cultural Sustainability
Northwest Maritime Center
The Miller|Hull Partnership
Collaborators:  Mechanical Engineering: Ecotope, Inc; Sustainability: O’Brien and Company

Photo Credit:  Nic Lehoux
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During the awards ceremony, there was an open Q&A session with project team members and the audience. Below are some of the interesting ideas from NEEA’s BetterBricks’ point of view:

- Integrated design proved to be a key process to attain high performance.

- Thermal comfort expectations can and should vary by seasons, by use and by zone.

- Green BIM tool advances are really helping.

- District-level awareness and connections are key to advanced sustainability.

- It is important to explore all the energy options early and seeing where they might work or even influence the design scheme.

- Some new products were developed or introduced into the US via some of the projects thus making it easier for future projects to take advantage of.

- It was essential to either have a client that was interested and even aggressively pushing the energy and sustainability goals or have the architect effectively convince the client of the importance.
So go check out the detailed project information at the Seattle AIA website, and look for the video trailer http://wmig.aiaseattle.org/2010_gallery.