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
Sustainability | Sep 18, 2024
3 living buildings made by a living practice
Prompting humans to reexamine our relationship to the environment, architecture creates the opportunity for us to physically experience ideas of beauty, performance, and structure through the distinct lens of place.
3D Printing | Sep 17, 2024
Alquist 3D and Walmart complete one of the nation’s largest free-standing, 3D-printed commercial structures
Walmart has completed one of the largest free-standing, 3D-printed commercial structures in the US. Alquist 3D printed the almost 8,000-sf, 20-foot-high addition to a Walmart store in Athens, Tenn. The expansion, which will be used for online pickup and delivery, is the first time Walmart has applied 3D printing technology at this scale.
Retail Centers | Sep 17, 2024
Thinking outside the big box (store)
For over a decade now, the talk of the mall industry has been largely focused on what developers can do to fill the voids left by a steady number of big box store closures. But what do you do when big box tenants stay put?
Government Buildings | Sep 17, 2024
OSHA’s proposed heat standard published in Federal Register
The Occupational Safety and Health Administration (OSHA) has published a proposed standard addressing heat illness in outdoor and indoor settings in the Federal Register. The proposed rule would require employers to evaluate workplaces and implement controls to mitigate exposure to heat through engineering and administrative controls, training, effective communication, and other measures.
Codes and Standards | Sep 17, 2024
New California building code encourages, but does not mandate heat pumps
New California homes are more likely to have all-electric appliances starting in 2026 after the state’s energy regulators approved new state building standards. The new building code will encourage installation of heat pumps without actually banning gas heating.
Mass Timber | Sep 17, 2024
Marina del Rey mixed-use development is L.A.’s largest mass timber project
An office-retail project in Marina del Rey is Los Angeles’ largest mass timber project to date. Encompassing about 3 acres, the 42XX campus consists of three low-rise buildings that seamlessly connect with exterior walkways and stairways. The development provides 151,000 sf of office space and 1,500 sf of retail space.
Education Facilities | Sep 16, 2024
Hot classrooms, playgrounds spur K-12 school districts to go beyond AC for cooling
With hotter weather occurring during the school year, school districts are turning to cooling strategies to complement air conditioning. Reflective playgrounds and roads, cool roofs and window films, shade structures and conversion of asphalt surfaces to a natural state are all being tried in various regions of the country.
Office Buildings | Sep 16, 2024
Maximizing office square footage through ‘agile planning’
Lauren Elliott, RID, NCIDQ, Director of Interior Design, Design Collaborative, shares tips for a designing with a popular and flexible workspace model: Agile planning.
3D Printing | Sep 13, 2024
Swiss researchers develop robotic additive manufacturing method that uses earth-based materials—and not cement
Researchers at ETH Zurich, a university in Switzerland, have developed a new robotic additive manufacturing method to help make the construction industry more sustainable. Unlike concrete 3D printing, the process does not require cement.
Libraries | Sep 12, 2024
How space supports programming changes at university libraries
GBBN Associate Sarah Kusuma Rubritz, AIA, uses the University of Pittsburgh's Hillman Library to showcase how libraries are transforming to support students’ needs.
