SolarCity (NASDAQ:SCTY) has been on a tear this year and is expecting to grow installations as much as 90% next year. But it's depending on growth in solar leases, which may not be the dominant product for the industry in five to 10 years. Erin Miller sat down with solar contributor, Travis Hoium, to discuss why investors may want to be cautious with this hot solar stock. 

For investors still looking for exposure to solar without the risk posed by SolarCity, SunPower (NASDAQ:SPWR) and First Solar (NASDAQ:FSLR) may be worth a look. Both are profitable and in a more diverse set of markets than SolarCity. Find out more in the video below. 

Fool contributor Travis Hoium manages an account that owns shares of SunPower and personally owns shares and has the following options on SunPower: long January 2015 $5 calls, long January 2015 $7 calls, long January 2015 $15 calls, long January 2015 $25 calls, and long January 2015 $40 calls. 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.