Source: wikipedia.com.

Coal-fired power plants have been under the gun for some time now, and the "end" as mandated by the Environmental Protection Agency is nearing. Greenhouse gas emissions have played a central role in the way coal plants are treated, and American Electric Power Company (NYSE:AEP) and Duke Energy (NYSE:DUK) are pleading their cases to have congress step in. 

Taking a look at the numbers, it certainly appears that shutting down plants in lieu of the restrictions could place undue pressure on our energy grid. Renewable and natural gas sources simply haven't amassed enough production capacity to make up for the looming shortfall. Tune in to the following short clip for more.

This segment is from Friday'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.