Tom Konrad (AltEnergyStocks) submits: Since I last covered clean energy mutual funds and ETFs, the sector has seen the launch of two solar ETFs: (KWT), the Market Vectors Solar Energy ETF from VanEck,  and (TAN), the Claymore/MAC Global Solar Energy ETF.   Continuing in the tradition of cute ticker symbols, First Trust's new global wind energy ETF is (FAN). I recommend that investors stay away from the (very expensive) green energy mutual funds, and invest either in one of the ETFs, or if they have a few tens of thousands of dollars to invest and are willing to roll up their sleeves a little, they buy a representative sample of the stocks (a "tracking portfolio") held by the mutual funds and ETFs, and save further on expenses.Complete Story »