In this segment of The Motley Fool's "Ask a Fool" series, energy analyst Joel South takes a question from a reader who asks: "With solar stocks rising, I'm looking at a smaller solar company to invest in, RSOL. This company has been around a long time but the stock is only in the $3 range. What is the difference between SolarCity (NASDAQ:SCTY.DL)  and Real Goods Solar (NASDAQ: RSOL)?"  

This segment is from Thursday's edition of "Digging for Value," in which sector analysts Joel South and Taylor Muckerman discuss energy and materials news with host Alison Southwick. The twice-weekly show can be viewed on Tuesdays and Thursdays. It can also be found on Twitter, along with our extended coverage of the energy and materials sectors @TMFEnergy.

Joel South has no position in any stocks mentioned. Taylor Muckerman owns shares of SolarCity. The Motley Fool recommends and owns shares of SolarCity. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.