Dow Chemical’s (DOW) PowerHouse solar shingles may be coming to a home near you.  The announcement of efficient, affordable, and easily-installed solar rooftop shingles has shaken the building and solar industries quite a bit, as the company itself revels in the expectation of around $5 billion in revenues by 2015 for the single product alone. Dow received a $20 million grant from the United States Department of Energy for development on the project and will … Read the rest