In this segment, Motley Fool analysts Joel South and Taylor Muckerman discuss companies 10 thru 6 of their Top 20 energy companies to watch. To keep a closer eye on the energy and materials space, follow us on Twitter @TMFEnergy.

Solar and wind power garner all of the headlines when discussing green, renewable energy sources. Fortunately for Ormat Technologies (NYSE:ORA), that's where all the competition seems to be as well. For Ormat, the geothermal energy market is a wide open landscape for base load power generation. Around the globe, Ormat has been providing utility scale power sources in an environmentally favorable way. Lately, it has been reducing the time necessary to get a plant online which has been a large deterrent for using geothermal energy, until now. For more, tune in to the video below.

Joel South has no position in any stocks mentioned. Taylor Muckerman has no position in any stocks mentioned. The Motley Fool recommends Exelon. 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.