Enhancing the Efficiency of Photovoltaics

In correspondence with friends over the past few days, I have found some criticism of the cost of Solar Photovoltaics especially pertaining to their use in Third World countries like the nations of South Asia. I was, therefore, happy to get some interesting links on the Pickens Plan website: http://www.pickensplan.com/ which have technological solutions to enhancing the efficiency of photovoltaics through cool buildings which maximize the efficiency of solar photovoltaic equipment: http://www.pvcoolbuild.com/index.html For someone who is technically enabled, there is enough information here to help them design a home with integrated photovoltaic systems in the roofs. I do hope this is helpful to you engineers out there.