One obstacle for large standalone solar projects is the disruption of land that could be used for other purposes including nature conservation and farming.
This week, the U.S. Department of Energy launched a $1.4 billion loan guarantee project to build 733 megawatts worth of solar panels, which is nearly the equivalent of all the photovoltaic installations in the U.S. in 2010.
The program, called Project Amp, which will create more than 1,000 green jobs, is unique compared to other big solar programs because instead of focusing on one giant standalone tower or array, it involves the use of 750 existing rooftops.
(READ the article from Clean Technica)