E Source , a provider of independent research, advisory, and information services to utilities, major energy users, and other key players in the retail energy marketplace, recently released its  2011 Review of North American Electric and Gas Company IVRs and 3 of the top 7 ranked utilities are leveraging ClickFox customer experience analytics to optimize IVR effectiveness and increase self-service success. One top-ranked provider  increased IVR containment from 30% to 70% with…