Architecture meets energy efficiency in future of solar homes
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Great architecture has never been about winning; inspiration is a fickle flame, and does not necessarily rise from the competition around you. Architects pour their souls into their art, and are more interested in a conversation about ideas than a medal. I鈥檝e had my doubts that competition is a good way to generate wonderful designs, but frankly the聽, in which I was fortunate enough to be a juror, has generated some wonderful designs and important conversations.
The U.S. Department of Energy Solar Decathlon is an international competition that challenges 20 collegiate teams to design, build, and operate the most attractive, effective, and energy-efficient solar-powered house. The winner of the competition is the team that best blends affordability, consumer appeal, and design excellence with optimal energy production.
So what makes a winning entry? My opinion is it remains the elusive embodiment of good design; creating a single elegant solution from a big bag of conflicting requirements. Let me tell you what I look for.聽
1. A strong concept well executed
Architecture is a language, and you鈥檇 better have something to say. This year the Southern California Institute of Architecture鈥檚 (Sci-Arc) entry had an innovative idea: a house in two pieces, that could move apart or together depending on the weather. Like it or hate it, it鈥檚 hard not to argue that it is a coherent concept. Missouri 鈥榮 entry was a formal response to the urgent need for disaster shelter. Austria鈥檚 entry dematerialized the north and south walls to seamlessly blend interior and exterior space. All of these ideas supported the design solutions.
Other concepts, like emphasizing the mechanical room, just didn鈥檛 move me. In my opinion, a mediocre concept, even if well executed, is still a wrong turn.
2. Intriguing architecture
Is it interesting? Good architecture captures the imagination. Solid forms can be used to reference something familiar in a new way. The Czech Republic 鈥榮 entry this year was a box within a lattice frame, which played with light and shadow, framed views, and alternately hid and revealed the architecture as a person moved through it. Clever and intriguing.
However, the quest to be interesting is not license to do anything you please. The intrigue needs to be appropriate and enlightening鈥攚e rarely learn from random acts of architecture. The creativity in details was rampant at the Decathlon, from heat recovery off the clothes dryers at the Santa Clara house to gesture-based light switches in the Stanford house. And occasionally there were moments like the central skylight in the University of Southern California house鈥攁 truly sublime revelation welcoming the sky like a James Turrell skyspace.
3. Comfort
Does it feel good? I鈥檒l admit鈥擨鈥檓 a humanist. I get mad at architecture that fits me like a corset, or pokes me in the eye. I like buildings that are comfortable to be in, that adjust to me. Give me a building that frames a view, leads me down a path, lets me relax, compresses and expands space. Buildings must do more than house their intended use; they can support our lives, encourage our aspirations. Anything less is, well, less.
4. Wholeness
When design is really carefully considered, the result feels complete. Not a hodgepodge of ideas held together with sticky tape and glue, but an integrated composition where everything supports the concept, and nothing is superfluous. Being simple and editing out the unnecessary brings discipline and elegance to building. The Norwich Vermont house did this very well. Its concept of affordability was supported by adhering to the rigorous high-performance 鈥減assive house鈥 design standards, which in turn allowed the designers to essentially design out significant mechanical systems, increasing its affordability. Nice.
5. Regionalism
And finally, the world deserves regionalism. The days of imagining that the same house should be built the same in different climates are over. Celebrate Seattle! Enjoy New England! Buildings that do not embrace the genius of place are stealing a bit of our souls. Being alive includes being aware of our environment, and actively engaging with it.
The Decathlon is a challenge in this category, in that many of the buildings were intended for very different climates (such as Alberta, Canada, or the deserts of Las Vegas) but also had to perform at the Irvine, California, competition site. The most clever solution to this conundrum was the 鈥渂i-regional鈥 Czech house, which performed well in the warm California climate with a small shaded window on the south, but would be rotated 180 degrees when located in a cold Czech climate鈥攊ts open courtyard would then capture the sun and passively warm the building.
High-performance doesn鈥檛 mean funky architecture
You may have noticed a conspicuous absence of 鈥渟olar architecture鈥 in this essay. All 19 entries (one entrant withdrew months before the event), from West Virginia鈥檚 log cabin to Alberta鈥檚 crystalline white forms performed as net-zero energy buildings. There is no reason for a high-performing building to look like 鈥渟olar architecture鈥 anymore. We can鈥攎ust鈥攈ave performance and wonderful architecture integrated as a seamless whole.
It goes without saying that this takes a colossal amount of effort to produce. The practice of architecture is a slog, and adding the complexities of the Decathlon is even more onerous. It is clear, as Richard King of the DOE stated, 鈥淭he 2013 buildings are the best contestants yet.鈥 The entrants this year have learned from the previous generation of entrants, and even more importantly, have themselves become the new generation of leaders to bring beautiful affordable net-zero buildings to the marketplace. The contest is improving our design conversation. Through our understanding of how to design聽with聽climate, we have generated a responsible architecture for reducing our impact聽on聽the earth鈥檚 climate.