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
| Sep 19, 2012
ABI back into positive territory
South continues to lead regions in demand for design services.
| Sep 19, 2012
HGA Architects & Engineers moves offices in San Francisco
HGA’s San Francisco office has grown by nearly 25% in the past two years, adding shared expertise to the 120-person California practice, which includes the Sacramento and Los Angeles offices.
| Sep 19, 2012
Sasaki opens office in Shanghai
Office supports firm’s present and future work in China, throughout Asia.
| Sep 18, 2012
MBMA partners with ORNL for whole building energy efficiency study
The results are intended to advance energy efficiency solutions for new and retrofit applications.
| Sep 18, 2012
MKK opens office in North Dakota
MKK is currently working on seven projects in North Dakota, including a hotel, restaurant, truck stop, office building, and apartment complex.
| Sep 18, 2012
Firestone Building Products launches new website
Deep product information and innovative customer support tools are highlights.
| Sep 13, 2012
Leo A Daly Company promotes Kraskiewicz to senior vice president
Kraskiewicz, who most recently served as chief operations officer for the Leo A Daly division, will guide brand management, business development, operations and financial performance for 18 offices worldwide.
| Sep 13, 2012
Acentech adds audiovisual expertise to Trevose, Penn. office
Artese focuses on advising, overseeing, and maintaining the client’s vision for the project from the initial kick-off meeting to the final commissioning of the completed systems.
| Sep 13, 2012
Margulies Perruzzi Architects completes office design for Pioneer Investments
MPA updated the office design and additional support space consisting of five floors at Pioneer’s Boston office located at 60 State Street.
| Sep 12, 2012
Harvesting new ways to eliminate waste at the USDA
After installing 20 high-speed, energy-efficient hand dryers in restrooms throughout the USDA headquarters; the USDA reports seeing an immediate 50% reduction in the use of paper towels.
