Yes, solar has come a long way over the last few years. Growth in 2012 blew away many expectations in the United States. As far as renewable energy growth is concerned, the adoption of solar has really stolen most of the headlines. However, investors looking to add renewable energy to their portfolio should also give some consideration to geothermal energy. 

Several companies from both sectors reported quarterly earnings recently, and the results caught many by surprise. Ormat Technologies (NYSE:ORA) blew away 2012 results in the geothermal side of things, whereas the solar market saw mixed reviews about the second quarter from some of the larger players in the U.S. market. Tune in below for more details. 

Joel South has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool owns shares of Ormat Technologies. 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.