Chubu Electric has effectively put on hold plans to build a new reactor at its now-idled Hamaoka nuclear plant in Shizuoka Prefecture as it is currently unable to specify a start date for operations, company sources said Saturday.

Chubu Electric Power Co. will not include any time frame for the new unit, construction for which has yet to begin, in a report it will submit to the government by March 31, covering its power supply plan for the 2012 business year, the sources said.

The utility has been unable to draft a detailed schedule for the envisioned reactor at a time when most utilities have shelved plans to build new units in light of the Fukushima meltdown crisis, the sources said.