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 | | Nov 19, 2014
Long-life coatings vs. long-life screws
Are you concerned with the long-life protection of your metal building project? SPONSORED CONTENT
Sponsored | | Nov 19, 2014
Fire resistive, blast-resistant glazing: Where security, safety, and transparency converge
Security, safety and transparency don’t have to be mutually exclusive thanks to new glazing technology designed to support blast and fire-resistant secure buildings. SPONSORED CONTENT
| Nov 19, 2014
Must see: Arup, Damian Rogers propose urban surf park in Melbourne
The surfing pool would offer 98-foot-wide waves that would run the length of the 500-foot-long enclave.
| Nov 18, 2014
Architecture Billings Index dips in October, still shows positive outlook design services
Headed by the continued strength in the multifamily residential market and the emerging growth for institutional projects, demand for design services continues to be healthy, as exhibited in the latest Architecture Billings Index.
| Nov 18, 2014
New tool helps developers, contractors identify geographic risk for construction
The new interactive tool from Aon Risk Solutions provides real-time updates pertaining to the risk climate of municipalities across the U.S.
| Nov 18, 2014
5 big trends changing the world of academic medicine
Things are changing in healthcare. Within academic medicine alone, there is a global shortage of healthcare professionals, a changing policy landscape within the U..S., and new view and techniques in both pedagogy and practice, writes Perkins+Will’s Pat Bosch.
| Nov 18, 2014
Grimshaw releases newest designs for world’s largest airport
The airport is expected to serve 90 million passengers a year on the opening of the first phase, and more than 150 million annually after project completion in 2018.
| Nov 17, 2014
Nearly two years after Sandy Hook, the bloodshed continues
It’s been almost two years since 20 first-graders were shot and killed at Sandy Hook Elementary School in Newtown, Conn., but these incidents, both planned and random, keep occurring, writes BD+C's Robert Cassidy.
| Nov 17, 2014
Hospitality at the workplace: 5 ways hotels are transforming the office
During the past five years, the worlds of hospitality and corporate real estate have undergone an incredible transformation. The traditional approach toward real estate asset management has shifted to a focus on offerings that accommodate mobility, changing demographics, and technology, writes HOK's Eva Garza.