Wind power in the backyard: an interview with Erik Frye by faircompanies on January 21, 2007 Wind power can be efficiently used to generate energy in numerous places throughout the United States. In America, windmills are …
"Código Técnico de la Edificación" (spanish normative) by faircompanies on December 22, 2006 Spain’s new building code requires all new, remodeled and public buildings to install solar panels. On March 17, 2006, Spain …