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. âWe didnât have net-zero in mind when we were starting out,â 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.
âWe didnât have net-zero in mind when we were starting out.â
--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 11, 2010
USGBC honors Brad Pitt's Make It Right New Orleans as the âlargest and greenest single-family community in the worldâ
U.S. Green Building Council President, CEO and Founding Chair Rick Fedrizzi today declared that the neighborhood being built by Make It Right New Orleans, the post-Katrina housing initiative launched by actor Brad Pitt, is the âlargest and greenest community of single-family homes in the worldâ at the annual Clinton Global Initiative meeting in New York.
| Aug 11, 2010
AIA report estimates up to 270,000 construction industry jobs could be created if the American Clean Energy Security Act is passed
With the encouragement of Senate majority leader Harry Reid (D-NV), the American Institute of Architects (AIA) conducted a study to determine how many jobs in the design and construction industry could be created if the American Clean Energy Security Act (H.R. 2454; also known as the Waxman-Markey Bill) is enacted.
| Aug 11, 2010
Architect Michael Graves to be inducted into the N.J. Hall of Fame
Architect Michael Graves of Princeton, N.J., being inducted into the N.J. Hall of Fame.
| Aug 11, 2010
Modest rebound in Architecture Billings Index
Following a drop of nearly three points, the Architecture Billings Index (ABI) nudged up almost two points in February. As a leading economic indicator of construction activity, the ABI reflects the approximate nine to twelve month lag time between architecture billings and construction spending.
| Aug 11, 2010
Architecture firms NBBJ and Chan Krieger Sieniewicz announce merger
NBBJ, a global architecture and design firm, and Chan Krieger Sieniewicz, internationally-known for urban design and architecture excellence, announced a merger of the two firms.
| Aug 11, 2010
Nation's first set of green building model codes and standards announced
The International Code Council (ICC), the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), the U.S. Green Building Council (USGBC), and the Illuminating Engineering Society of North America (IES) announce the launch of the International Green Construction Code (IGCC), representing the merger of two national efforts to develop adoptable and enforceable green building codes.
| Aug 11, 2010
David Rockwell unveils set for upcoming Oscar show
The Academy of Motion Picture Arts and Sciences and 82nd Academy AwardsÂź production designer David Rockwell unveiled the set for the upcoming Oscar show.
| Aug 11, 2010
More construction firms likely to perform stimulus-funded work in 2010 as funding expands beyond transportation programs
Stimulus funded infrastructure projects are saving and creating more direct construction jobs than initially estimated, according to a new analysis of federal data released today by the Associated General Contractors of America. The analysis also found that more contractors are likely to perform stimulus funded work this year as work starts on many of the non-transportation projects funded in the initial package.