A measure to put the cost of relicensing nuclear power plants in the public eye was introduced by Sen. Hanna-Beth Jackson (D-Santa Barbara) and Assemblymember Toni Atkins (D-San Diego). SB 418 requires utilities to estimate foreseeable costs, with a focus on ratepayer costs arising from the re-opening or extension of plant licenses. It requires the California Public Utilities Commission to review the cost-effectiveness of renewal and relicensing. \t\u201cWe need some way to judge whether going forward with a nuclear power plant is the best and most cost-effective route to supplying our energy needs,\u201d Jackson stated. \tSan Onofre Nuclear Generating Station unit 2 is in the process of federal approval for trial restarts\u2014at first for five months at 70 percent power, thereafter for two more years at Southern California Edison\u2019s judgment. The Nuclear Regulatory Commission has yet to allow or disallow such a restart. The nuclear plant was shut down January 2012 after a breakdown in its nearly new $670 million steam generators caused a radioactive leak. \tPacific Gas & Electric\u2019s Diablo Canyon plant continues to run. PG&E is asking for a 20-year extension of its license\u2014also at the Nuclear Regulatory Commission. The license expires now in 2025. The nuclear reactor meltdowns at Fukushima Daiichi in 2011 caused the federal agency to look more closely at the earthquake implications at the Diablo facility. The process continues while PG&E gathers more data on the Hosgri and Shoreline faults.