It's been a busy six weeks since I last updated readers on the news events driving my Ten Clean Energy Stocks for 2013 and six alternative picks. I looked into the performance of the portfolio as a whole at the start of the month, along with some comments about the four renewable energy developers. I thought at the time we might be seeing a bottom for these beleaguered stocks, but if I was right, we have yet to see the upturn. Nevertheless, the fundamental factors I discussed are still in place.