Who: American Electric Power

What: Carbon capture and storage

Most utility CEOs believe coal will remain a major source of power for decades to come. But using coal after the world puts limits on greenhouse gas emissions requires fitting coal plants with so-called carbon capture technologies. In equipment being built by multinational power giant Alstom (headquartered in France), a solvent such as chilled ammonia grabs the carbon dioxide from power plant smokestacks. Alstom and American Electric Power are testing the system on a coal-fired power plant in West Virginia. Once the carbon is trapped, it will be stored underground.