It's been a long time coming for both natural gas and solar as viable sources of energy in the United States. Both have been struggling with a lack of consumer and industrial buy-in, but both could be right around the corner. Is either one standing out at the moment?

The debate is on
In the following video, Motley Fool analysts Joel South and Taylor Muckerman each weigh in on how natural gas and solar have been performing lately and which companies are taking the lead. Both options have made progress recently, with Clean Energy Fuels (CLNE -2.40%) building out its "America's Natural Gas Highway" initiative and SunPower (SPWR -4.64%) producing more efficient solar panels.