A few days ago, the most important green energy ETF since the first solar ETF’s launched arrived. The First Trust/Clean Edge Smart Grid ETF (GRID) offer a great, diversified way to play an emerging sector with great profit potential. The ETF is comprised of 29 companies with varying degrees of exposure to the smart grid space and the fund weights companies that are pure plays more heavily than those that aren’t. The top 3 holdings … Read the rest