Nevada will end up with costlier power if it goes ahead with plans to build three new coal plants instead of relying on renewables, says a study from an independent economic consultancy. Higher construction costs and an inevitable tax on emissions will drive up costs of the black rock in the not-so-long run, according to ECONorthwest. The conclusions will surely get the thumbs up from downwind Utah residents, who are petitioning to protest one of Nevada’s planned plants.