Net-zero may seem beyond the budgets of most K-12 school districts, but a couple of trailblazers have found the means to construct schools designed to produce as much power as they use.
The new $20 million, 88,693-sf Colonel Smith Middle School in Ft. Huachuca, Ariz., takes daylighting to the highest level. Every regularly occupied space has a window, skylight, or clerestory glazing for layered daylighting. To hold down the cooling load, the building obtains most of its sunlight from the north sky through clerestory windows. On the south exterior wall, exterior overhangs prevent direct solar exposure in the summer, while allowing passive solar heating in winter. Locker rooms and other support spaces have shaded high-wall translucent fiberglass panels to provide privacy. Lighting energy use is expected to be 80% less than that of a standard school building.
Energy is recovered from locker room exhaust to pre-heat or pre-cool supply air delivered to locker rooms. Solar panels heat domestic water for locker rooms and the kitchen. PVs were obtained through a power purchase agreement. “We didn’t have net-zero in mind when we were starting out,” notes Dr. Ronda Frueauff, Superintendent of the Ft. Huachuca Accommodation School District. That changed as the design committee evaluated the affordability of each green element. Only geothermal was ruled out as cost-prohibitive.
Geothermal is, however, a key component of the Lady Bird Johnson Middle School in Irving, Texas, with 530 geothermal wells and 105 water-source heat pumps. The school is powered by 2,988 rooftop solar panels and 12 wind turbines. Opened in August 2011, the $29 million, 152,000-sf school cost about 12% more to build than one of traditional construction. School officials expect to recoup their investment in 10-12 years.
“We didn’t have net-zero in mind when we were starting out.”
--Dr. Ronda Frueauff, Superintendent of the Ft. Huachuca Accommodation School District.
Both schools incorporate green features into lesson plans. The Texas school features museum-type displays along the main hallway highlighting geothermal, solar, and wind technology, along with water efficiency. Students can get a close-up view of the PVs from a roof observation deck.
Getting to net-zero is not easy, but the promise of eliminating energy bills and using state-of-the-art technology as a learning lab can make a compelling case to reach for net-zero. +
Related Stories
| May 23, 2012
McRitchie joins McCarthy Building as VP, commercial services in southern California
McRitchie brings more than 18 years of experience in the California construction marketplace.
| May 23, 2012
Arizona Army National Guard Readiness Center awarded LEED Silver
LEED certification of the AZ ARNG Readiness Center was based on a number of green design and construction features SAIC implemented that positively impacted the project and the broader community.
| May 23, 2012
New hospitals invest in data centers to manage growth in patient info
Silver Cross became one of the first hospitals to install patient tracking software so families know where a patient is at all times. New communication equipment supports wireless voice and data networks throughout the hospital, providing access to patients and their families while freeing clinicians to use phones and computers where needed instead of based on location.
| May 23, 2012
Summit Design+Build selected as GC for Chicago restaurant
Little Goat will truly be a multifunctional space. Construction plans include stripping the 10,000 sq. ft. building down to the bare structure everywhere, the installation of a new custom elevator and adding square footage at the second floor with an addition.
| May 22, 2012
Batson-Cook names Partin VP of Business Development
Partin joins general contractor from Georgia Hospital Association.
| May 22, 2012
Casaccio Architects and GYA Architects join to form Casaccio Yu Architects
Architects Lee A. Casaccio, AIA, LEED AP, and George Yu, AIA, share leadership of the new firm.
| May 22, 2012
O’Connell Robertson acquires Mitchell Design Consultancy
Mary Ann A. Mitchell, AIA, IIDA, MDC principal and founder, joins O’Connell Robertson as part of the acquisition.
| May 21, 2012
$61,000 awarded to students in Cleveland’s ACE Mentor Program
Mayor Frank G. Jackson gives keynote address at scholarship event for 80 Cleveland Metropolitan School District students involved in the ACE Mentor Program, which provides guidance and assistance for students interested in careers in the integrated construction industry.
| May 21, 2012
Wayne, Pa.'s Radnor Middle School wins national green award
Radnor Middle School among the most sustainable schools in the U.S.
| May 21, 2012
Winchester High School receives NuRoof system
Metal Roof Consultants attended a school board meeting and presented a sloped metal retrofit roof as an alternative to tearing off the existing roof and replacing it with another flat roof.
