Paris' Zero-Carbon Eco-District

Reflecting on 2017.  In Paris, one of the most ambitious urban renewal projects in recent memory is rising out of the ground and coming into focus.  I visited in June with students.  The district is called Clichy-Batignolles; its centerpiece is Parc Martin Luther King.  The amount of construction activity was staggering. 

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The district covers 54 hectares (133 acres) of former railyards and industrial land in northwest Paris. It will include:

  • 3,400 housing units for 7,500 residents. 50% is social housing
  • 140,000 m2 of offices for 12,700 workers
  • 31,000 m2 of shops, services and activities
  • 38,000 m2 of public facilities
  • The new Palais de Justice (federal courts) for 9,000 users per day
  • 10 hectares (25 acres) of green space
  • 2 Metro stations on the new Ligne 14
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The district is intended to achieve "unprecedented energy performance" and a "neutral carbon footprint."  Some official sources on the project:  [1]  [2]  [3]  Some of the strategies are:

  • district geothermal heating and cooling
  • reduction in heating needs to 15 kWh/m2/year (Passivhaus standard)
  • building consumption of less than 50 kWh/m2/year in primary energy
  • photovoltaic power generation of approx. 4,500 mWh/year, supplying about 40% of the need
  • a pneumatic underground waste collection system, reducing greeenhouse gas emissions by 42%
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In June we found an already-vibrant community, with small-scale elementary schools and grocery stores embedded among the new housing blocks.  Parc Martin Luther King, essentially complete, is a wonder; home to birds and waterfowl and community vegetable gardens, it successfully merges French formal traditions and today's pleasures, including plenty of bicycle facilities and a sparkling water fountain.  The older neighborhood to the southeast, Batignolles, offers a diverse street life with a marché couvert and Haussmann-era housing blocks.

To play architectural critic, I found too many of the individual buildings strain for attention with gestural geometries, maybe a residual Bilbao effect.  This is particularly noticeable among the office buildings on the southwest edge of the site.  Collectively, this will likely produce visual cacophony when the ensemble is complete.  And visual cacophony doesn't flatter Paris the way it does LA or Shenzen.  Still, I think the project compares favorably—both technically and aesthetically—with its closest comparators, London's Stratford and New York's Hudson Yards.

source: http://www.skyscrapercity.com/showpost.php?s=d78050b8f56819f611b9380030606813&p=142737393&postcount=11693

source: http://www.skyscrapercity.com/showpost.php?s=d78050b8f56819f611b9380030606813&p=142737393&postcount=11693

The district's predetermined architectural jewel, the Palais de Justice by Renzo Piano Building Workshop, is shown above.  It's nice, of course, but will take a back seat to the Fondation Louis Vuitton as the Paris monument to represent our time.  I imagine it will function as a 'bookend' to the Centre Pompidou in illustrating the arc of Piano's career.  It also shows that France is moving some of its most historic institutions from the city center to the periphery, but this doesn't mean sprawl, it's an effort to create new centers.  (Greater Paris surely does have conventional problems of sprawl, as well as problems associated with social housing in the suburbs.)

In the foreground of the image above, embedded within all the new construction, is a historic building: Les Ateliers Berthier by Charles Garnier (1895–98), where scenery and costumes for the Paris Opera were created and stored.  

Earlier this year, HuffPost asked the well-worn question: Is Paris Becoming a Museum City?  After visiting Clichy-Batignolles, I can answer with confidence: Non!

Too Expensive: The Solar Decathlon (redux)

Photo by Jack Dempsey for the U.S. Department of Energy. https://flic.kr/p/ZVf6YJ

Photo by Jack Dempsey for the U.S. Department of Energy. https://flic.kr/p/ZVf6YJ

When I visited the 2017 Solar Decathlon in suburban Denver last month, I was especially attentive to to issue of costs.  It is very expensive for schools to compete in the U.S. Department of Energy's event.  The DOE says the estimated cost to date for teams is anywhere from $300,000 to $1.5 million.  Previously I discussed the overall cost of the Decathlon and questioned the value of the event. 

This year West Virginia University withdrew "because of insurmountable budget challenges" and Washington State University did not finish their house in time to compete.  It's getting to be a familiar story.  In 2015, as I noted here, Yale University withdrew from the competition just weeks before it occurred, citing problems with fundraising.  (I would love any of those students to comment here.)

At the 2017 Decathlon, I heard two students independently use the phrase "unbelievably expensive" to describe their homes.  To find out what "unbelievably expensive" means, I dug into the students' competition materials.

2017 Solar Decathlon: Actual Construction Costs
from the Market Potential contest submittals

$638,300
$415,255
$404,000
$351,073
$317,537
$284,000
$248,808
$232,166
$205,949
[Not Reported]  
[Not Reported]  
[Not Reported]

Swiss Team   (pdf link)
Las Vegas   (pdf link)
Northwestern   (pdf link)
Wash U – St. Louis   (pdf link)
Median
Maryland   (pdf link)
UC Davis   (pdf link)
Missouri S&T   (pdf link)
UC Berkeley/U of Denver   (pdf link)
Netherlands
Team Alabama   (pdf link)
Team Daytona Beach   (pdf link)

Notes on the table above:
● These are 1000 ft2 homes (though some --- especially the Swiss --- included extensive enclosed outdoor spaces).
● For the Decathlon, these figures did not include transportation, student & faculty labor, and indirect costs.
● Projected for the "real world," these figures would not include land, real estate fees and taxes, utility hookups, permanent foundations.
● Northwestern, with costs 21% higher than the median, won the Market Potential contest.

Given that the Decathlon is essentially a marketing effort for the PV and electric car industry, again I ask:  Why are top universities willing to invest so much in this?  Why are students willing to donate their labor to it?  Is it a good lesson for any student to build a one-bedroom portable house for $317,000?  Is this the highest and best use of all that money?

The 2019 Solar Decathlon will again be staged in Denver.

Divine Ammunition by Al Farrow

The exhibition Divine Ammunition by Al Farrow is on display at the University Art Museum here at the University of Wyoming through December 16.  It is powerful.  I thought I would share some photos.

This is from the introductory panel:

Divine Ammunition
The Work of Al Farrow

In his meticulous miniature representations of churches, mosques, synagogues, mausoleums and devotional objects, sculptor Al Farrow (American, b. 1943) explores and challenges the relationship between religion, conflict and war. Inspired by a 1995 encounter with the reliquaries of the Medici Chapel in the Basilica of San Lorenzo, one in particular captured Farrow's imagination. The ornate silver and jewel-encrusted vessel contained a withered finger enclosed in its original blown glass. The body part, arched as a trigger finger might be, sent Farrow's mind to racing with the incongruences of object, metaphor, and ultimately to paradoxes of religion and war, history and culture, belief and power. His artistic pursuit resulted in his series, Twentieth Century Reliquaries.

Farrow’s choice of materials ― used firearms, new and used spent shell castings, lead shot combined with bone, glass and other found objects ― balance the architectural distinctions of his houses of worship, each embedded with doctrines of its particular faith, with the aesthetic beauty of re-purposed, re-fabricated and re-finished military weaponry. Fashioned with painstaking finesse, revolvers become flying buttresses, gun barrels and trigger assemblies convert into spires and gables, and bullets of varying sizes take on the appearance of rooftop tiles or reference sculptures of saints.

In a manner of furthering his own intellectual curiosity and reflection on his subject, Farrow imagines Santo Guerro, a saint of his own invention, which is represented in the monumental The Spine and Tooth of Santo Guerro (2007) and several smaller works that incorporate human bone.

Farrow has an extensive exhibition record that includes solo and group exhibitions spanning 40 years. He is represented in prestigious collections such as the San Francisco Museum of Modem Art, San Jose Museum of Art, 21c Museum Hotel, the de Young Museum and in public and private collections in Germany, Israel, and Sweden. He lives and works in California and is represented by Catharine Clark Gallery, San Francisco.

Solar Decathlon 2017

Overview.jpg

I visited the Solar Decathlon in Denver this weekend, where 11 houses designed and built by students are on display.  Although I have been a bit critical of the Decathlon, both in The Solar House and here on the blog, I have the highest regard for the students' talents and efforts.

And this Decathlon is different, because Denver will be a bit cold this coming week during the period that the houses will be measured for energy use.  A few of the houses are clearly designed for passive solar gains. 

Here are some photos of the 12 houses.  More info can be found at the Department of Energy's Solar Decathlon website.


Smart Innovative Living Oasis (SILO) by Missouri S&T
team website

Missouri combo.jpg

Our H2Ouse by University of California, Davis
team website

Davis 01 combo.jpg

Resilient Adaptive Climate Technology (reACT) by University of Maryland
team website

Maryland combo.jpg

RISE house by University of California, Berkeley and University of Denver
team website

Berkeley combo.jpg

Selficient by HU University of Applied Science, Utrecht, Netherlands
team website

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NeighborHub by Swiss Team
team website

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Enable by Northwestern University
team website

Northwestern combo.jpg

CRETE house by Washington University, St. Louis
team website

Wash combo.jpg

surviv(AL) House by Team Alabama
team website

Alabama combo.jpg

Sinatra Living by University of Nevada, Las Vegas
team website

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BEACH House by Team Daytona Beach
team website

Daytona combo.jpg

While I am glad the contest is being held in a cold-climate city, to reward passive solar heating, the chosen site in Denver—undeveloped suburbia—is a difficult one for showcasing the event.  I noticed students walking approximately 2 miles across vacant land to their lodgings at airport hotels.  This is a typical view when approaching the event.

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(Edited to add: This area is planned to be a Net-Zero eco-district called Peña Station NEXT.)

In any case, I liked many of the houses very much and enjoyed talking to the students.  Good luck to all of them!

Tools: The Shading Protractor

In a 1954 report entitled Application of Climatic Data to House Design, brothers Victor and Aladar Olgyay introduced the Shading Protractor.  They showed it on the cover of the report, along with a reference to neoclassical French principles of composition, and the intelligent shading of the Brazilian Ministry of Education building by Oscar Niemeyer and Le Corbusier:

In a 2014 article**, David Leatherbarrow and Richard Wesley interpreted the graphic design above for its cultural meaning.  They wrote:

"That the Olgyays chose a Classical drawing of the profile of a human face and positioned it so that it appears to be gazing at the sun screen of a modern facade through the lens of a shading protractor represents a provocative proposition: building elements designed in precise reaction to environmental factors could become the ‘visibly evident’ elements of a new architectural style equivalent to the Classical."

Protractor-like tools had been used earlier to understand solar geometry and shading* but the Olgyays' developed "Shading Masks"—a new method of graphic representation to understand solar gain and design proper shading.  In their 1957 book Solar Control and Shading Devices, they established the following procedure:

Step 1: To determine the times when shading is needed.
Step 2: To determine the position of the sun, when shading is needed.
Step 3: To determine the type and position of a shading device which will interfere between the sun and the point of observation during the overheated period.
Step 4: To design a shading device from the shading mask.

Olgyay shading masks 01.jpg

While the Shading Mask is a generative tool for design in the procedure above, it could also be used to analyze existing designs.  In the same book the Olgyays created Shading Masks for various case-study buildings in various locations.  Here are some samples which correspond to actual shading devices of different types:

Olgyay shading masks.jpg

 

As Leatherbarrow and Wesley noted, the Shading Protractor has been "long since replaced by computer simulation."

*See Tools: Whit Smith's solar tool and Tools: Libbey-Owens-Ford's Sun Angle Calculator
**David Leatherbarrow and Richard Wesley, "Performance and style in the work of Olgyay and Olgyay," arq: Architectural Research Quarterly (2014).