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 1, 2013
A LEGO lover's dream: Guide to building the world's iconic structures with LEGO
A new book from LEGO master builder Warren Elsmore offers instructions for creating scale models of buildings and landmarks with LEGO.
| May 1, 2013
New AISC competition aims to shape the future of steel
Do you have the next great idea for a groundbreaking technology, model shop or building that could potentially revolutionize the future of the steel design and construction industry? Enter AISC's first-ever Future of Steel competition.
| May 1, 2013
Data center construction remains healthy, but oversupply a concern
Facebook, Amazon, Microsoft, and Google are among the major tech companies investing heavily to build state-of-the-art data centers.
| May 1, 2013
Groups urge Congress: Keep energy conservation requirements for government buildings
More than 350 companies urge rejection of special interest efforts to gut key parts of Energy Independence and Security Act
| May 1, 2013
World’s tallest children’s hospital pushes BIM to the extreme
The Building Team for the 23-story Lurie Children’s Hospital in Chicago implements an integrated BIM/VDC workflow to execute a complex vertical program.
| Apr 30, 2013
Healthcare lighting innovation: Overhead fixture uses UV to kill airborne pathogens
Designed specifically for hospitals, nursing homes, child care centers, and other healthcare facilities where infection control is a concern, the Arcalux Health Risk Management System (HRMS) is an energy-efficient lighting fixture that doubles as a germ-killing machine.
| Apr 30, 2013
First look: North America's tallest wooden building
The Wood Innovation Design Center (WIDC), Prince George, British Columbia, will exhibit wood as a sustainable building material widely availablearound the globe, and aims to improve the local lumber economy while standing as a testament to new construction possibilities.
| Apr 26, 2013
Apple scales back Campus 2 plans to reduce price tag
Apple will delay the construction of a secondary research and development building on its "spaceship" campus in an attempt to drive down the cost of developing its new headquarters.
| Apr 26, 2013
Documentary shows 'starchitects' competing for museum project
"The Competition," a new documentary produced by Angel Borrego Cuberto of Madrid, focuses on the efforts of five 'starchitects' to capture the design contract for the new National Museum of Art of Andorra: a small country in the Pyrenees between Spain and France.
