The sun sets behind a coal-fired power plant owned by the Uniper energy company in Gelsenkirchen, Germany. Energy costs have soared in Europe since Russia's invasion of Ukraine. (Michael Sohn / ...

For years, Antonio Scognamillo paid $1,200 a month to power La Smorfia, his cozy pizzeria offering dozens of styles of pies in this hilly, medieval tourist enclave by the Ligurian Sea. That was before ...