As the U.S. electric power industry unbundles, the industry and its regulators grapple with two big questions concerning the degree to which distribution services should be unbundled. First, what groups of distribution activities can separate suppliers provide? Second, which of these groups of activities should be open to competition?
Looking at the unbundling experiences of Argentina, Australia, Canada, Chile, Norway and the United Kingdom sheds light on these questions. The distribution unbundling of the U.S. gas and telecommunications industries provides additional insights.