Higher payouts aren't enough over the long term.

The past two years witnessed the ascendancy of dividend yield in the valuations of U.S. electric utilities. The recent primacy of yield in utility-industry valuations is the product of a unique confluence of factors. The collapse of most of the industry's non-regulated growth initiatives has resulted in a market that attributes little value to the industry's growth prospects beyond that which has been historically generated by the expansion of rate base-1 to 3 percent.