Japanese nuclear power plant operator Tokyo Electric Power Co. (TEPCO) hopes it will be able to achieve cold shutdown of its crippled Fukushima Daiichi nuclear plant within six to nine months, the company said on Sunday. The firm said the first step would be cooling the reactors and spent fuel to a stable level within three months, then bringing the reactors to cold shutdown in six to nine months. That would make the plant safe and stable and end the immediate crisis, now rated on a par with the world’s worst nuclear accident, the 1986 Chernobyl disaster. TEPCO, founded 60 years ago, added it later plans to cover the reactor buildings, damaged by a massive earthquake and tsunami that struck on March 11. The latest data shows much more radiation leaked from the Daiichi plant in the early days of the crisis than first thought, prompting officials to rate it on a par with Chernobyl, although experts were quick to point out Japan’s crisis was vastly different from Chernobyl in terms of radiation contamination.