BERLIN (Reuters) – Germany’s energy regulator has listed priority areas that would have protected access to power if there are severe gas shortfalls this winter, ranging from households and hospitals to pharmaceuticals companies and paper producers. Sharp cuts to deliveries of Russian gas through the Nord Stream pipeline have led authorities to make urgent preparations for a hard winter. “We can’t classify every business as systemically important,” Klaus Mueller, head of Germany’s Federal Network Agency watchdog, told the Funke newspaper group in an interview published on Saturday. “Products a…