Nullenergia majad,passiivmajad,ökomajad

House producing more energy than it provides:
http://www.usembassy.fi/blog/2009/11/almost-no-heater-required-for-finland%E2%80%99s-high-standard-energy-efficient-housing/

http://www.digsdigs.com/beach-house-that-consumes-less-energy-than-it-provides/

http://www.climatechangecentral.com/publications/c3-views/january-2009/net-zero-homes-equal-big-gains

http://featuresblogs.chicagotribune.com/theskyline/2009/07/going-net-zerofor-effect-1stofitskind-home-in-chicago-will-produce-as-much-energy-as-it-uses.html

http://www.metaefficient.com/architecture-and-building/energy-producing-home-disguise.html

http://cleanidahoenergy.wordpress.com/2009/11/11/idaho%E2%80%99s-first-energy-neutral-home-now-under-construction-will-produce-more-energy-than-it-demands/

http://www.fashionbymia.com/Images/PressMenu/090601.pdf

http://www.gadelius.com/index.cfm?category=68&newsid=349

http://discardedlies.com/entry/?35584_

http://www.ecofuturesbuilding.com/2009/10/solar-harvest/

http://www.guardian.co.uk/environment/2009/may/21/active-house-denmark-zero-carbon

http://www.motiva.fi/files/653/es-finland_eng.pdf

http://www.eukn.org/finland/news/2009/10/Samso-Island-Is-Face-of-Danish-Green-Revolution_1027.html