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Japan's largest nuclear power is awaiting a key decision from the regional governor

On Friday, a Japanese regional governor will be expected to announce whether he is willing to allow a partial restart at the Kashiwazaki Kariwa nuclear plant, which is the largest in the world, as Japan attempts to revitalize its nuclear sector while reducing fossil fuel imports.

The approval of Niigata Prefecture governor Hideyo Haazumi will remove the final major obstacle for Tokyo Electric Power Co. (TEPCO) in its plans to restart Kashiwazaki and Kariwa's two biggest reactors.

TEPCO would be able to restart its power plant for the first time since March 2011, when the tsunami destroyed Fukushima Daiichi. This would be a major breakthrough for Japan which, after the disaster, shut down all 54 reactors.

Sanae Takaichi - the new Prime Minister of Japan, who was appointed last month - has stated that she is in favor of more nuclear relaunches, both to improve energy security and reduce the cost of imported electricity, which makes up 60% to 70% or Japan's total electricity production.

On Friday, Chief Cabinet Secretary Minoru K. Kihara stated that "the restart... is extremely crucial from the perspective to reduce power supply and prices and secure decarbonized energy sources."

Japan has restarted fourteen of the remaining 33 reactors that were in operation prior to Fukushima.

Governor Hanazumi will announce his decision on Friday at 4:00 pm (07:00 GMT). It was unclear whether the report released by Japan's nuclear regulator on Thursday about inadequate security management at Kashiwazaki Kariwa would affect his decision.

TEPCO plans to restart unit No. 6 and No. TEPCO, if approval is granted for both, plans to restart units No. 7 can together produce 2,710 Megawatts, which is about a third the total power of Kashiwazaki Kariwa (8212 MW). TEPCO plans to decommission a few of the five other units.

In July, Kansai, Japan's largest nuclear power company, announced that it would start conducting surveys in order to study the possibility of building a new reactor west of Japan. This would be the country's first new unit built since the Fukushima catastrophe.

TEPCO's shares fell 1.3% on the Friday after the Nuclear Regulation Authority report. This was better than the Nikkei Index, which dropped 2.3%. (Reporting and editing by Tony Munroe, Tom Hogue, and Kaori Kaneko. Additional reporting by Katya Glubkova.

(source: Reuters)