The vast majority of Japan's 54 commercial nuclear reactors are offline because popular opposition is preventing their being restarted in the wake of the Fukushima nuclear crisis.
The disaster, triggered by the March 11 earthquake and tsunami, contaminated the environment and forced tens of thousands of residents around the Fukushima nuclear site, in northeast Japan, to evacuate their homes.
Many still do not know if or when they will be able to return.
Utility companies say Japan will experience severe power shortages if nuclear electricity production is not re-started.
"We are making contact with the International Atomic Energy Agency to see what's possible after we received requests from Fukushima that it hoped IAEA will have a permanent presence in the area," a Japanese diplomat told AFP, under customary condition of anonymity.
Foreign Minister Koichiro Gemba, whose parliamentary constituency is in Fukushima, told residents on Sunday that he was making the push after requests from local leaders.