Investors looking for stocks in the Alternative Energy - Other sector might want to consider either PNM Resources (TXNM) or Bloom Energy (BE) . But which of these two companies is the best option for those looking for undervalued stocks? Let's take a closer look.Everyone has their own methods for finding great value opportunities, but our model includes pairing an impressive grade in the Value category of our Style Scores system with a strong Zacks Rank. The proven Zacks Rank puts an emphasis on earnings es ...