Clean, efficient combined-cycle natural gas power plants acc aspwv1970-01-01T00:00:00-05:00January 1st, 1970|Twitter| Clean, efficient combined-cycle natural gas power plants accounted for 40% of scheduled electric generation capacit… https://t.co/3o3E84M7os Share This Story, Choose Your Platform! FacebookTwitterRedditLinkedInWhatsAppTumblrPinterestVkEmail