The European Commission announced investigations last week into Chinese suppliers of wind turbines in Spain, Greece, France, Romania and Bulgaria. It’s the latest move by Brussels targeting suspected Chinese green tech subsidies that could undermine fair competition – from the solar panel industry to a closely watched probe into e-cars. The European Union’s competition chief, Margrethe Vestager, announced the inquiry during a speech at the Institute for Advanced Study in Princeton, New Jersey in the United States. “China is for us simultaneously a partner in fighting climate change, an economi…