Gene Marcial of BusinessWeek is touting Energy Conversion Devices (ENER) as a top thin film solar pure play and believes its shares will surge higher again once solar stocks come back into favor.  ENER’s proprietary technologies allow solar cells to be embedded into roofing materials. 

“We view its thin-film solar technology as superior to, and differentiated from, the more established and commodity-like polysilicon-based solar technology,” says Angelo Zino, an analyst at Standard & Poor’s Equity Research (S&P, like BusinessWeek, is owned by McGraw-Hill Cos.). He notes that Energy Conversion has “filled its entire 2009 available capacity and is receiving significant purchase orders for its fiscal 2010 planned capacity.”

The stock is still in the process of carving out the bottom of a new base, so I believe it could be at least several months before the stock comes close to approaching all time highs.