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 6, 2014
25 projects win awards for design-build excellence
The 2014 Design-Build Project/Team Awards showcase design-build best practices and celebrate the achievements of owners and design-build teams in nine categories across the spectrum of horizontal and vertical construction.
| Aug 6, 2014
Multifamily Sector Giants: Younger consumers, Sunbelt renaissance energize multifamily housing [2014 Giants 300 Report]
Multifamily housing construction is expected to remain relatively strong throughout 2014. Starts picked up in 2013, with completions due to catch up this year, finally approaching pre-recession levels, according to BD+C's 2014 Giants 300 Report.
| Aug 5, 2014
Risk scanning: A new tool for managing healthcare facilities
Using well-known risk analytics applied to pre-existing facility data, risk scanning can provide a much richer view of facility condition more consistent with actual management decision making.
| Aug 5, 2014
Shigeru Ban-designed Aspen Art Museum will open doors to public this week
After 18 month of planning and construction, the museum will open its new Shigeru Ban-designed facility to the public on August 9.
| Aug 5, 2014
Will driverless cars kill the parking structure?
A report from Deloitte highlighted how driverless cars could dramatically alter car ownership in the future, pushing the pendulum from ownership to rentals and ride sharing.
| Aug 5, 2014
K-12 School Sector Giants: Pent-up demand finally produces movement in schools market [2014 Giants 300 Report]
After a long period of anemic performance, with growth mostly driven by renovations and additions, the K-12 sector is showing renewed interest in new construction, according to BD+C's 2014 Giants 300 Report.
| Aug 4, 2014
Jean Nouvel commissioned to design Islam Museum next to WTC
El-Gamal's plans has been dubbed controversial by many industry professionals.
| Aug 4, 2014
Facebook’s prefab data center concept aims to slash construction time in half
Less than a year after opening its ultra-green, hydropowered data center facility in Luleå, Sweden, Facebook is back at it in Mother Svea with yet another novel approach to data center design.
| Aug 4, 2014
Retail Giants: Grocery-anchored centers, trophy malls among hot retail developments [2014 Giants 300 Report]
Despite the rapid growth of online shopping, the 'bricks and mortar' retail sector is faring quite well, headed by power centers, grocery-anchored centers, and trophy malls, according BD+C's 2014 Giants 300 Report.
| Aug 4, 2014
BIM Giants: Firms enhance BIM/VDC with advanced collaboration tools [2014 Giants 300 Report]
Cloud-based data sharing, rapid iterative design, and cross-discipline collaboration are among the emerging trends in the BIM/VDC field, according to BD+C's 2014 Giants 300 Report.
