Energy Efficiency ventures, and more generally cleantech/greentech ventures, are not bets you will always win. Far from reaching this level of performances, an Energy Efficiency entrepreneur may want to join a first-class incubator, in which she will put the odds in her favour. Alongside, VCs and PEs which invest money in these incubators may want to better significantly better off. So, what are some of the secrets of success of the best incubators? As an entrepreneur, what should you look at before joining an incubator? Here are some answers an expert shares with us.