Citing the San Onofre Nuclear Generating Station\u2019s ongoing outage as their impetus, commissioners from both the Federal Energy Regulatory Commission and Nuclear Regulatory Commission June 15 reviewed how to cooperate on grid reliability involving nuclear plant shutdowns. \u201cSome nuclear problems are persistent,\u201d Jon Wellinghoff, FERC chair said. \u201cI guess we can look at San Onofre. Until now, I\u2019ve said \u2018everything is going to be fine\u2019 in Southern California.\u201d Wellinghoff added that the area\u2019s reliability could be fleeting. \u201cIt\u2019s only because of extraordinary efforts like taking plants out of mothballs.\u201d The NRC agreed. \u201cSan Onofre is a very high concern to our staff,\u201d said Dan Dorman, deputy director, NRC office of nuclear material safety and safeguards. Another area of correlation between commissions was also noted in the San Diego area. In September 2011 there was a massive outage in Southern California. Power from the then-operating San Onofre plant could not be used to alleviate blackouts. That failure also \u201cshows interrelations,\u201d FERC member Phil Moeller said. Commissioners were advised on other areas of overlapping concern and potential dual-agency mitigation measures, like multiple nuclear plant failures--where power plants can cascade in shutdowns \u201cwithout warning,\u201d noted Wellinghoff. Both agencies joined in concern over upgrading facilities and infrastructure for natural and terrorist emergencies. Many multi-unit nuclear plants, like those operating in California, were designed to respond to emergencies for one unit, noted Dorman. In trying to implement lessons the agency is learning from the meltdowns at the Fukushima Daiichi facility, the NRC is trying to prepare those working on site to keep the power on in order to cool reactors. He noted that could even involve \u201ccombing the area for car batteries to buy time\u201d until emergency crews can respond. The event aimed to clarify the interdependence between the two agencies and put mitigation questions on the table, not necessarily answer them at this time.