📎 AI Summary:
The thread centers on Tepco’s report that fuel in additional reactors at the Fukushima plant may have melted, following findings that rods in Unit 1 fell from their assembly—raising concerns that water level readings for other units may be unreliable and that further meltdowns could have occurred. Key discussion points include how this uncertainty likely undermines Tepco’s cleanup/timeline, with commentary that the company’s roadmap may not have incorporated enough data and negative scenarios, alongside the resulting impact on Tepco’s credit rating outlook from Moody’s. Overall sentiment is strongly negative, focusing on worsening technical prospects and delayed crisis resolution.

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Cooler King
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Tokyo Electric Power Co. said fuel in other reactors at its damaged nuclear plant may have melted, after confirming rods in the No. 1 unit had fallen from their assembly, potentially delaying plans to resolve the crisis.

“The findings at the No. 1 reactor indicate the likelihood that the water level readings in the other reactors aren’t accurate,” Junichi Matsumoto, a general manager at the utility known as Tepco, said today. “It could be that a meltdown similar to that in the No. 1 reactor has occurred.”

Moody’s Japan K.K. cut Tepco’s credit ratings and put it on review for further possible downgrade after today’s news. Tepco has been struggling to cool reactors and stop radiation leaks to end the worst nuclear crisis since Chernobyl in 1986. The discovery that fuels rods melted within 16 hours of power being knocked out means it’s unlikely Tepco can meet its timetable for containing the leaks, a nuclear engineering professor said.

“Tepco didn’t clearly indicate how much uncertainty and potential negative scenarios were factored into the road map,” said Hironobu Unesaki at Kyoto University. “I don’t think they gathered enough data before coming up with the plan.”
Tepco Says Fuel in 2 Reactors May Have Melted - Bloomberg