Mid-Atlantic grid operator PJM reported Monday that FirstEnergy’s plan to close three nuclear power plants by 2021 won’t threaten grid reliability and stability — another piece of evidence against the utility’s claim that it needs federal emergency bailouts or protections to keep the money-losing plants open. Greentechmedia.com Operator Engie Electrabel has shut down the Doel-1 nuclear plant in Belgium after the discovery of a small leak in the backup cooling water circuit, the country’s nuclear regulator said. Nucnet.org A nuclear reactor near Cape Cod has been shut down for the third time this year. The Cape Cod Times reports a malfunction involving two valves that regulate the amount of water flow into the reactor at the Plymouth-based Pilgrim Nuclear Power Station are causing the problem. Bostonhearld.com Six people enrolled in a foreign trainee program participated in construction work at the disaster-stricken Fukushima No. 1 nuclear plant, despite the plant operator’s ban on program participants working at the complex, officials said Tuesday. Japantimes.co.jp