Las Vegas Review-Journal: A key backer for one of three coal-fired power projects in Nevada announced Friday that it was ending its participation in the project. Dynegy Inc. of Houston said that it and LS Power Associates of East Brunswick, N.J., are dissolving their development joint venture for the Nevada generation plant and other new projects. The joint venture was developing the 1,600-megawatt White Pine Energy Station near Ely and the Southwest Intertie Project, a transmission line that could …