8) Combined Cycle Power Plants. One by one high efficiency combined cycle power plants are coming on line. These plants will replace aging coal plants over the next decade and consume lots of lower 48 natural gas, which will help build natural gas prices back up to a reasonable level. Anything the builds lower 48 gas price support helps the Alaska gasline project. Congrats to TVA for bring the John Sevier Combined Cycle plant online ahead of schedule and below cost.