Hello again
Last Wednesday, 3 October 2007, the 17th Swiss Solar Awards ceremony was held to celebrate various architects and individuals, among them Martin Vosseler, who crossed the Atlantic in a solar-powered catamaran in the winter of 2006/2007. This year's focus was on energy-efficient (solar) buildings.
In Switzerland alone, energy-efficient architecture can substitute three (3) large gas or nuclear power stations, avoiding misinvestments of CHF 7 billion each year – and a whole lot of other problems, such as nuclear waste and greenhouse gas emissions.
It may be hard to believe but it's true (I'm excerpting/translating from a pdf document published by "solaragentur", a link to their website will appear if you click on this post's headline):
The implementation of three fairly simple, sustainable policies can substitute three big power stations producing approx. 8 TWh/yr,*) without any reduction in comfort!
Two major, positive side-effects:
- i) reduction of CO2 (equivalent) greenhouse gas emissions by some 20% -- one fifth!
- ii) creation of some 60,000 new jobs by 2018 in Switzerland alone.
Technologies are already available in Switzerland and in Europe and they work -- they only need to be widely adopted by the building industry.
And these are the three policies:
1 -- apply the so-called "Minergie-P-Standard" to all new-builds and renovations in Switzerland.
Examples:
-- the "EAWAG" building 2006 (near Zurich: produces 46% of its own energy, reduces CO2 emissions by 85% in comparison to current [already high] standards);
-- the "Marché International" 2007 (in Kemptthal: produces 100% of its own energy and reduces CO2 emissions to 0, i.e. by 100%).
Total savings: approx. 8 TWh/yr.
2 -- implement sustainable high-tech in agricultural rooftops and façades.
Example:
-- if solar panels as those on a farm in Barberêche/Fr (2005-06) are installed on 90% of all farm houses, the equivalent of approx. 8TWh/yr can be produced without using a square inch of valuable farmland. Producing energy from biomass and biogas can increase this figure to approx. 10TWh/yr.
Total savings: another 8 TWh/yr or so.
3 -- improve the efficiency of and eliminate obsolete electrical structures.
Examples:
-- replace electrical resistance heaters by heat pumps; traditional lightbulbs by energy-saving bulbs, and inefficient electrical appliances by highly efficient ones.
Total savings: yet another approx. 8 TWh/yr.
In sum, each year approx. 24TWh can be saved, i.e. Switzerland's entire nuclear power production. Very nice side effect, indeed!
You will find all this and many more details at http://www.solaragentur.ch -- in French or German.
I very much look forward to your comments. :)
PS: I happen to know one of the award winners, who works in the same office complex as I do. Congratulations, Peter, for the first apartment building that actually produces more energy than it uses! -- and it's beautiful, too -- check it out at http://www.halle58.ch (Gebhartstrasse, Köniz BE) -- The brochure he brought in yesterday inspired me to produce this post.
PPS: In the course of some quick research, I came across a company that produces the most beautiful and highly efficient heaters I've seen so far. Check them out at http://www.infraswiss.com/En/index.html -- I don't usually promote actual companies, but I have a friend whose painting studio has one of those infrared heaters and she's absolutely enthusiastic.
*) T = tera = 10 to the power of 12 [M = mega = 10 to the power of 6, or 1,000,000, or 1 million; K = kilo = 10 to the power of 3, or 1000, or one thousand; according to Wikipedia, 20-40 W is the approximate power consumption of the human brain.
Friday, October 05, 2007
Subscribe to:
Post Comments (Atom)
4 comments:
You are surely wandering onto shaky ground making a posting which relies so heavily on figures and mathematical calculations - not exactly your forte. Still, it all checks out okay.
R.
What cheek! ;)
As I grow older I get better at this kind of thing. Curious, but true. (Mind you, it might have more to do with my having access to Wikipedia and all kinds of other great on-line resources.)
Perhaps it's got to do with hormones -- oh, but now I really AM on shaky ground! ...
I looked at your heater recommendation. They look nice, but in general electric heaters should be avoided if possible, because they turn a "valuable" form of energy (electricity) into the lowest form of energy, namely heat. A heat pump can use one unit of electricity and two units of ambient energy to produce say 3 units of useful heat.
However, if small electric heaters are used only for a short time and only when they are really required, they can save energy required to otherwise heat the whole room. This is especially so for radiative heaters which transfer the heat to people and not the air. That is why such heaters are called radiators even if the radiation is as invisible infrared. However visibly radiating heaters work better, e.g. the red-glowing "electric fires" or the orange or even yellow-glowing "halogen heaters" available in industry. Such heaters are more efficient than those you propose but don't look good and are a fire hazard.
PS Were you at Martin's on the 4th?
Thank you, Theo, for your comment. Most instructive, and, having read your information, I fully agree with you.
For anyone else, Theo has just given me permission to post this link to his website, where you can see him piloting his solar-powered catamaran:
http://www.umwelteinsatz.ch/IBS/theoe.htm
Way to go! Congratulations, Theo!
Post a Comment