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
| Aug 10, 2016
Top 90 Retail Architecture Firms
Gensler, GreenbergFarrow, and MG2 top Building Design+Construction’s annual ranking of the nation’s largest retail sector architecture and A/E firms, as reported in the 2016 Giants 300 Report.
| Aug 10, 2016
DATA CENTER GIANTS: Information overload is pushing the limits of mission-critical facilities
Streamlined design and delivery approaches for individual business enterprises and co-location facilities are being born out of the necessity to bring new capacity online as quickly as possible.
| Aug 10, 2016
Top 30 Data Center Architecture Firms
Gensler, Corgan, and HDR top Building Design+Construction’s annual ranking of the nation’s largest data center sector architecture and A/E firms, as reported in the 2016 Giants 300 Report.
| Aug 10, 2016
UNIVERSITY GIANTS: Facing money woes, the nation's colleges double down on innovative ideas
Budget constraints are compelling some public institutions to pursue alternative methods of financing their major building projects.
| Aug 9, 2016
Top 100 University Architecture Firms
Gensler, Perkins+Will, and CannonDesign top Building Design+Construction’s annual ranking of the nation’s largest university sector architecture and A/E firms, as reported in the 2016 Giants 300 Report.
Reconstruction & Renovation | Aug 9, 2016
Renascent architecture: Demolished Frank Lloyd Wright structures get new life
The Frank Lloyd Wright Revival Initiative is set to begin its reconstruction efforts with the Banff Pavilion, which was demolished in 1939.
Building Team | Aug 4, 2016
Thought leaders from architecture, engineering and construction to meet at 2016 Bluebeam eXtreme Conference
Bluebeam users inspire technological change through shared insights and training at three-day event.
| Aug 4, 2016
MULTIFAMILY BUILDING GIANTS: Rental complexes focus on affordability, accessibility, and specialty amenities
To address the affordability problem and attract tenants, owners and developers are experimenting with smaller and smaller units, amenity-rich environments, and “co-living” concepts.
| Aug 4, 2016
Top 110 Multifamily Architecture Firms
Perkins Eastman, CallisonRTKL, and Solomon Cordwell Buenz top Building Design+Construction’s annual ranking of the nation’s largest multifamily building sector architecture and A/E firms, as reported in the 2016 Giants 300 Report.
| Aug 3, 2016
GREEN BUILDING GIANTS: Sustainability leaders turn to wellness and technology to get an edge
AEC leaders in green building are stepping up to a higher level of innovation and to be a green leader today, you have to dig deeper into data.
