[Lapg] Seattle’s Silver Bullitt: A New Office Building Goes Ultra-Green Time Magazine July 2 2012
Wesley Roe and Santa Barbara Permaculture Network
lakinroe at silcom.com
Sun Jun 24 12:21:20 PDT 2012
Seattle’s Silver Bullitt: A New Office Building Goes Ultra-Green
For a six-story, 50,000 sq. ft. building to function completely off the
grid, its tenants will need to get used to taking the stairs and using
composting toilets
How can a six-story, 50,000-sq.-ft. office building in downtown Seattle
function completely off the grid? The answer involves solar panels for
energy, geothermal wells for heat, a giant rain cistern for water and
composting toilets for keeping sewage out of everything else. The
toilets were just installed at the Bullitt Center, which is set to be
completed this fall. “You have to remember to flush before and after,”
says Bullitt Foundation president and Earth Day founder Denis Hayes.
“But that may be the single largest lifestyle change.”
Hayes’s Seattle-based sustainability-advocacy group is bankrolling the
largest multistory project that is trying to meet the superstringent
requirements of the Living Building Challenge (LBC). Created in 2006 by
the Portland, Ore.,-based International Living Futures Institute, LBC
calls for buildings to not only have net-zero energy and water systems,
but to use half the energy required to get LEED platinum certification
(which is administered by a fellow nonprofit). LBC won’t certify a
building as “living” until it has proven it meets the group’s goals for
a full year after people move in. So far LBC has certified only three
buildings worldwide, all of them in the U.S. and all exponentially
smaller than the Bullitt Center. Another 140 projects in eight countries
are vying for the designation.
(MORE: How SolarCity Makes Energy Efficiency Easy)
What makes the Bullitt Center so impressive is its height — or, more
accurately, its relatively small rooftop — and its location. While it’s
pretty easy in cloudy Seattle to harvest rainwater and treat it via an
onsite biofiltration system, getting enough sunlight to power the
building required rethinking every aspect of the project, big and small.
The builders had to get a variance from the city to let its rooftop
solar panels hang out over the sidewalk. But the solar panels won’t do
all the work. The building’s design and its tenants have important roles
too. To help cut energy consumption to 23 percent the amount of a
traditional building its size, natural light will account for 82 percent
of all lighting, thanks to oversized windows and higher ceilings that
help get light farther inside. And so will air, as the building’s
electronic “brain” automatically opens and shuts the windows based on
temperature needs, eliminating the need for air-conditioning units.
Even with the building managing vital systems, users must make lifestyle
changes, taking the stairs instead of the elevator, for instance, and
choosing MacBook Air laptops — which pull less energy than a 100-watt
bulb — over a desktop. As for those special toilets, their contents will
get composted and decontaminated before being shipped off-site to be
used as fertilizer.
The $30 million facility, at $265 per sq. ft., is expensive, but not
outlandish. Mary Ann Lazarus, director of sustainability at HOK, one of
the largest architecture firms in the world, is not involved with the
Bullitt project, but says she hopes it will meet LBC standards and help
prove that “what may have seemed like a wild and crazy idea can work at
different scales.” Adds Hayes: “You’ll be surprised at how normal this is.”
Sources for the graphic: Bullitt Foundation; PAE Engineering; Miller Hull
(MORE: LEED From Behind: Why We Should Focus on Greening Existing Buildings)
Read more:
http://ecocentric.blogs.time.com/2012/06/20/silver-bullitt/#ixzz1yjw1nCmX
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