BERLIN (Reuters) – E.ON has informed the German government of a leak at the Isar 2 nuclear power plant which has not compromised security but could complicate the government’s winter energy plan, the environment ministry said on Monday. Isar 2, in the southern state of Bavaria, had been scheduled to go offline at the end of the year under Germany’s plan to phase out nuclear power. [POWER/DE] But the war in Ukraine and the subsequent plunge in energy imports from Russia prompted a policy change, with Berlin now planning to keep two of Germany’s three remaining reactors, including Isar 2, on sta…