The following is an interesting article and makes one wonder if this will spread to other Lennar projects if it is successful. It might be a welcome addition to some of the Newhall Ranch developments considering Lennar is displaying good environmental stewardship with that local development. 

Lennar Corp. plans to install solar power systems in all its new homes built in the Bay Area. The Miami-based home builder’s Lennar Bay Area Homebuilding division made the pledge at the opening of its Milano community in San Ramon this week. The Milano homes are equipped with a roof-integrated solar electric system from PowerLight, a subsidiary of SunPower Corp. 

Lennar and SunPower are part of the New Solar Homes Partnership, launched by the California Energy Commission, a 10-year, $350 million program that encourages the use of solar power in new residential home construction. Read it here: http://biz.yahoo.com/bizj/070224/1423283.html?.v=1