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
| Apr 17, 2012
Princeton Review releases “Guide to 322 Green Colleges”
The guide profiles 322 institutions of higher education in the U.S. and Canada that demonstrate notable commitments to sustainability in their academic offerings, campus infrastructure, activities and career preparation.
| Apr 17, 2012
FMI report examines federal construction trends
Given the rapid transformations occurring in the federal construction sector, FMI examines the key forces accelerating these changes, as well as their effect on the industry.
| Apr 17, 2012
Freese and Nichols awarded Malcolm Baldridge National Quality Award
Freese and Nichols is the only engineering and architecture firm to ever receive this recognition.
| Apr 17, 2012
Miramar College police substation in San Diego receives LEED Platinum
The police substation is the first higher education facility in San Diego County to achieve LEED Platinum Certification, the highest rating possible.
| Apr 17, 2012
Alberici receives 2012 ASA General Contractor of the Year award
Alberici has been honored by the ASA eight times in the award’s nineteen-year history--more than any other general contractor in its class.
| Apr 16, 2012
Freeland promoted to vice president at Heery International
Recently named to Building Design+Construction’s 40 Under 40 Class of 2012.
| Apr 16, 2012
University of Michigan study seeks to create efficient building design
The result, the researchers say, could be technologies capable of cutting the carbon footprint created by the huge power demands buildings place on the nation’s electrical grid.
| Apr 16, 2012
UNT lab designed to study green energy technologies completed
Lab to test energy technologies and systems in order to achieve a net-zero consumption of energy.
| Apr 16, 2012
Shawmut awarded Tag Heuer builds in Florida and Pennsylvania
Both projects are scheduled to be completed this spring.
| Apr 16, 2012
Batson-Cook breaks ground on senior living center in Brunswick, Ga.
Marks the third Benton House project constructed by Batson-Cook.
