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
| Oct 13, 2014
Debunking the 5 myths of health data and sustainable design
The path to more extensive use of health data in green building is blocked by certain myths that have to be debunked before such data can be successfully incorporated into the project delivery process.
Sponsored | | Oct 13, 2014
The problem with being a customer-centric organization
Kristof De Wulf, CEO of InSites Consulting, argues that the effects of customer-centricity typically don’t endure, leading only to temporary improvements in company performance. SPONSORED CONTENT
Sponsored | | Oct 13, 2014
CLT, glulam deliver strength, low profile, and aesthetics for B.C. office building
When he set out to design his company’s new headquarters building on Lakeshore Road in scenic Kelowna, B.C., Tim McLennan of Faction Projects knew quickly that cross-laminated timber was an ideal material.
Sponsored | | Oct 13, 2014
Think you can recognize a metal building from the outside?
It’s getting more and more difficult to spot a metal building these days. What looks like brick, stucco or wood on the outside could actually be a metal building in disguise. SPONSORED CONTENT
Sponsored | | Oct 13, 2014
Liberty Utilities protects installers with Viega MegaPress
Liberty Utilities of New Hampshire wanted a way to keep its installers safe without compromising the quality of their installations, which is why the utility provider decided to start installing Viega MegaPress. SPONSORED CONTENT
| Oct 13, 2014
Department of Agriculture launches Tall Wood Building Competition
The competition invites U.S. developers, institutions, organizations, and design teams willing to undertake an alternative solution approach to designing and building taller wood structures to submit entries for a prize of $2 million.
| Oct 12, 2014
AIA 2030 commitment: Five years on, are we any closer to net-zero?
This year marks the fifth anniversary of the American Institute of Architects’ effort to have architecture firms voluntarily pledge net-zero energy design for all their buildings by 2030.
| Oct 10, 2014
A new memorial by Zaha Hadid in Cambodia departs from the expected
The project sees a departure from Hadid’s well-known use of concrete, fiberglass, and resin. Instead, the primary material will be timber, curved and symmetrical like the Angkor Wat and other Cambodian landmarks.
| Oct 9, 2014
Regulations, demand will accelerate revenue from zero energy buildings, according to study
A new study by Navigant Research projects that public- and private-sector efforts to lower the carbon footprint of new and renovated commercial and residential structures will boost the annual revenue generated by commercial and residential zero energy buildings over the next 20 years by 122.5%, to $1.4 trillion.
| Oct 9, 2014
More recession-postponed design projects are being resurrected, says AIA
About three quarters of the estimated 700 firms that serve as panelists on AIA’s Architectural Billings Index (ABI) had delayed or canceled major design projects in response to recessionary pressures. Nearly one-third of those firms now say they have since restarted stalled projects.
