While Plug Power (NASDAQ: PLUG) and TerraForm Power (NASDAQ: TERP) both focus on the renewable-energy market, they couldn't be more different. Plug focuses on providing hydrogen and fuel cell systems to help power electric industrial vehicles, while TerraForm generates electricity from the wind and sun. Plug Power also pours all its earnings back into developing new products, while TerraForm returns most of its cash flow to its investors with a high-yielding dividend.
Both companies, however, appear to have a bright future, as each sees lots of growth ahead. Here's a closer look at the bull and bear case for buying these renewable-energy stocks.
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