Posts Tagged ‘green roof’

28 May

Let’s Follow France’s Law To Sun-Up Rooftops

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Dear Friends, Visitors/Viewers/Readers,

France is in favor of the Solar and  Green Future (credit: sunisthefuture-Susan Sun Nunamaker)

France is in favor of the Solar and Green Future (credit: sunisthefuture-Susan Sun Nunamaker)

(Please click on red links & note magenta)

C., thank you for alerting me to the law that was recently (in March, 2015) passed by the French governing body, requiring roof tops of new French commercial buildings to be either partially covered by solar panels

Solar PV (credit: sunisthefuture-Susan Sun Nunamaker)

Solar PV (credit: sunisthefuture-Susan Sun Nunamaker)

or plants. This law was the product of compromise between French environmentalists and the more conservative members of the parliament. Initially, the French environmental activists wanted to make it mandatory to have all new buildings to be covered with green roofs, but the Socialist government convinced these activists to limit the scope of the law to new commercial buildings/rooftops.

Hopefully, this law will enable France to catch up to its neighbors.  Solar PV capacity in France has increased much more slowly than in Germany, Spain or Italy in the past, Reuters reported in November of 2014. In June of last year, France had 5,095 megawatts of PV capacity, accounting for 1 percent of the energy consumption in the first half of 2014. Neighboring Germany had almost 37,000 MW.

Other places such as Australia, Germany, Canada, and Britain already have green roofs as part of their urban landscape. As a matter of fact, Toronto has mandatory green roofs  as part of its by-laws since 1998.

Green Roof of Chicago City Hall ( attribution: Tony The Tiger)

Green Roof of Chicago City Hall ( attribution: Tony The Tiger)

Green roof  of British_Horse_Society_Head_Quarters_and_Green_Roof attribution Sky Garden Ltd

Green roof of British Horse Society Head Quarters ( attribution: Sky Garden Ltd)

 

Green roof of Tongyang downtown apartment complex (attribution: Vmenkov)

Green roof of Tongyang downtown apartment complex (attribution: Vmenkov)

 

 

Green roof of the Mountain Equipment Co-op store in Toronto, Canada (attribution: Sookie)

Green roof of the Mountain Equipment Co-op store in Toronto, Canada (attribution: Sookie)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This law will certainly help to reduce the energy needed due to urban heat island (especially notable during summer and winter) and rainwater retension (by reducing runoff problems). Please refer to the video below:

 


“This draft law is a very positive step forward and a concrete lever for greener and smarter cities,” said James Watson, CEO of the European Photovoltaic Industry Association. “There are so many unused rooftops in our cities today and solar photovoltaics is the perfect solution to make the best out of them as it can be seamlessly integrated in an urban setting.” Watson added that rooftops, large or small, represent 70 percent of the installed solar capacity in France.

“Solar electricity produced on your roof can partially or entirely instantaneously cover your own power needs,” Watson said.

In addition to cost saving, please keep in mind that in 2014, solar energy production saved about 110 million tons of carbon dioxide emissions globally.

Perhaps all governments throughout our planet should consider utilizing surface areas of the rooftops.

~have a bright and sunny day~

Gathered, written, and posted by sunisthefuture-Susan Sun Nunamaker

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2 September

Solar Decathlon (15)-University of Maryland’s Water Shed Design of 2011

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Dear Readers,

If you are in favor of renewable,  clean, or solar energy, please sign this petition for FIT/CLEAN Program, accessible at http://sunisthefuture.net/?page_id=1065 Thank you very much. We are at a critical juncture in human history when individual effort and participation in the transition into renewable energy age is desperately needed!  Your signature will be very meaningful in helping all earthlings!  For a summary of why we need to switch to power the earth with Wind-Water-Sunlight quickly, reasons are explained by Stanford Professor Mark Z. Jacobson at  http://sunisthefuture.net/?m=20110731 There are more than sixteen episodes of discussions on FIT (Feed-In-Tariff/CLEAN Program) available at http://sunisthefuture.net Please feel free to read/listen to them (type in feed-in-tariff in the search box at right).

The University of Maryland’s Water Shed is a  design inspired by Chesapeake Bay (the largest estuary in the United States) and is composed of two modules, North module is for public while the South module is that of the private realm.  These two modules have the butterfly roof, one roof with PV array while the other with vegetative green roof and the two meet in the middle where the central water accesses and where the bathroom exists. On  either side of East side, PV side of the roof, rainwater drains down into a  harvesting tank and  the green roof along with the gray water from the house are sent to the West side constructive wetland which filters the gray water that may be reused for irrigation. Mechanical, electrical, and automated control systems are at the core of the house, with various parts of the systems functioning effectively, efficiently, and collaboratively.  Now let’s take a look at this design that not only harvests the sun’s energy, recycles its waste into nutrients, but also demonstrates how human settlements may be designed to  help to protect this precious ecosystem.


 

written and posted by Susan Sun Nunamaker, sunisthefuture@gmail.com

Homepage:  http://sunisthefuture.net http://sunisthefuture.com http://sunisthefuture.org


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