By William Mathis (Bloomberg) --A carbon-fiber kite tethered to a buoy floating in waters 220 meters (761 feet) deep took flight in a test to prove that the future of offshore wind power might fly through the air. The kite, owned by the Alphabet Inc.-subsidiary Makani and backed by Royal Dutch Shell Plc, completed its first demonstration about 10 kilometers (6.2 miles) off … [Read more...]