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
Sponsored | Designers | Oct 18, 2017
Universal design principles: Part 2
The CDC targets the bathroom as the most dangerous room in the house. Architects can use principles of Universal Design (UD) to reduce these hazards.
Giants 400 | Oct 17, 2017
Top 110 office architecture firms
Gensler, Jacobs, and HOK top BD+C’s ranking of the nation’s largest office sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Oct 16, 2017
Data center market forecast: Clearly cloudy
Look for mission-critical construction to double in the next few years.
Resiliency | Oct 13, 2017
Resiliency takes center stage in new projects around the country
Projects like these, where resilience is central to their design and construction, are becoming more commonplace.
Architects | Oct 11, 2017
Architects to policymakers: Buildings are infrastructure, too
Left out of this ongoing national debate over infrastructure are the nation’s other public buildings: the libraries, community centers, courthouses, community college buildings, affordable housing developments, and justice facilities.
Giants 400 | Oct 11, 2017
Top 25 data center architecture firms
Jacobs, Corgan, and Gensler top BD+C’s ranking of the nation’s largest data center sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Multifamily Housing | Oct 9, 2017
6 new products for the multifamily construction market
Bamboo wall panels, an adaptable prep sink, and a two-tiered bike parking system are among the product innovations geared for multifamily buildings.
AEC Tech | Oct 6, 2017
How professional bias can sabotage industry transformation
Professional bias can take the form of change-resistant thinking that can keep transformational or innovative ambitions at bay. Tech consultant Nate Miller presents three kinds of bias that often emerge when a professional is confronted with new technology.
Giants 400 | Oct 6, 2017
Top 90 K-12 architecture firms
Stantec, DLR Group, and PBK top BD+C’s ranking of the nation’s largest K-12 sector architecture and AE firms, as reported in the 2017 Giants 300 Report.
Giants 400 | Oct 5, 2017
On wings of gold: Alternative financing schemes are propelling the high-flyin’ air terminals sector
The $4 billion renovation of New York City’s LaGuardia Airport is the first major U.S. aviation project delivered using a public-private partnership (P3) model.