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 26, 2011
Video: Are China's ghost cities a bubble waiting to burst?
It's estimated that 10 new cities are being built in China every year, but many are virtually deserted. Retail space remains empty and hundreds of apartments are vacant, but the Chinese government is more concerned with maintaining economic growth—and building cities is one way of achieving that goal.
| Apr 25, 2011
Earn $300 million by NOT hiring Frank Gehry
An Iowa philanthropist and architecture aficionado—who wishes to remain anonymous—is offering a $300 million “reward” to any city anywhere in the world that’s brave enough to hire someone other than Frank Gehry to design its new art museum.
| Apr 20, 2011
Marketing firm Funtion: to host “Construct. Build. Evolve.”
Function:, an integrated marketing agency that specializes in reaching the architecture, building and design community, is hosting an interactive art event, “Construct. Build. Evolve.” in Atlanta’s Piedmont Park on Thursday April 21, 2011 at 11:00AM EDT. During the event attendees will be asked to answer the question, “how would you build the future?” to rouse dialogue and discover fresh ideas for the future of the built environment.
| Apr 20, 2011
Architecture Billings Index: new projects inquiry index up significantly from February
The American Institute of Architects (AIA) reported the March ABI score was 50.5, a negligible decrease from a reading of 50.6 the previous month. This score reflects a modest increase in demand for design services (any score above 50 indicates an increase in billings). The new projects inquiry index was 58.7, up significantly from a mark of 56.4 in February.
| Apr 19, 2011
What are the 15 most-watched construction and engineering stocks?
According to Motley Fool, a multimedia financial services company, the most-watched construction and engineering stock is Fluor (NYSE: FLR), which ranks #1 on BD+C’s Giants 300 engineering list with $1.994 billion in revenue in 2009. Check out the 14 other most-watched A/E stocks.
| Apr 19, 2011
AIA announces top 10 green Projects for 2011
The American Institute of Architects Committee on the Environment announced its Top 10 Green Projects for 2011. Among the winners: Cherokee Studios in Los Angeles, the Department of Energy's National Renewable Energy Laboratory in Golden, Colo., and the Vancouver Convention Centre West in Vancouver, British Columbia.
| Apr 18, 2011
Greening and Upgrading Today’s Vertical Transport Systems
Earn 1.0 AIA/CES HSW/SD learning units by studying this article and passing the online exam.
| Apr 14, 2011
U.S. embassies on a mission to green the world's buildings
The U.S. is putting greater emphasis on greening its worldwide portfolio of embassies. The U.S. State Department-affiliated League of Green Embassies already has 70 U.S. embassies undergoing efforts to reduce their environmental impact, and the organization plans to increase that number to more than 100 by the end of the year.
| Apr 14, 2011
How AEC Professionals Choose Windows and Doors
Window and door systems need to perform. Respondents to our annual window and door survey overwhelmingly reported that performance, weather resistance, durability, and quality were key reasons a particular window or door was specified.
