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
Architects | Aug 19, 2015
Despite dip, architecture billings remain strong
The American Institute of Architects (AIA) reported the July ABI score was 54.7, down a point from a mark of 55.7 in June.
Architects | Aug 17, 2015
Historic power plant converted to modern offices in Minnesota
A landmark power plant in Owatonna, Minn., damaged in a 2010 flood has new life as the headquarters of Owatonna Public Utilities following a renovation by architects Leo A. Daly.
High-rise Construction | Aug 11, 2015
Calatrava's Turning Torso wins CTBUH's 10 Year Award
The 623-foot, 57-story tower was the world's first twisting skyscraper. Completed in 2005, the building, designed by Santiago Calatrava, rotates 90 degrees along its height.
Architects | Aug 11, 2015
Architecture firm compensation trending upwards
Latest AIA compensation survey finds average compensation for staff positions up 3.5 percent from early 2013
Architects | Aug 11, 2015
12 architecture schools join NCARB's 'speedy path to licensure' program
For architecture students, a license to practice may soon be available as early as graduation day
Architects | Aug 10, 2015
HDR expands its Canadian presence through merger with CEI Architecture
Public-private partnerships are expected to be one of the combined entity’s strengths.
Retail Centers | Aug 10, 2015
Walgreens’ flagship in Hawaii harkens back to the island’s fishing culture
A house where canoes were made served as the model for this drug superstore’s design.
Giants 400 | Aug 7, 2015
GOVERNMENT SECTOR GIANTS: Public sector spending even more cautiously on buildings
AEC firms that do government work say their public-sector clients have been going smaller to save money on construction projects, according to BD+C's 2015 Giants 300 report.
Giants 400 | Aug 7, 2015
K-12 SCHOOL SECTOR GIANTS: To succeed, school design must replicate real-world environments
Whether new or reconstructed, schools must meet new demands that emanate from the real world and rapidly adapt to different instructional and learning modes, according to BD+C's 2015 Giants 300 report.
Giants 400 | Aug 7, 2015
MULTIFAMILY AEC GIANTS: Slowdown prompts developers to ask: Will the luxury rentals boom hold?
For the last three years, rental apartments have occupied the hot corner in residential construction, as younger people gravitated toward renting to be closer to urban centers and jobs. But at around 360,000 annual starts, multifamily might be peaking, according to BD+C's 2015 Giants 300 report.
