PPL Corp. named C. Joseph Hopf, vice president of energy trading for Goldman Sachs in New York, as PPL's lead energy marketing executive. PG&E Corp. elected President and CEO Peter A. Darbee to the additional position of chairman of the boards of directors for the corporation and its utility unit, Pacific Gas and Electric Co. Executive Vice President and COO Thomas B. King was elected the utility's president and CEO, as well as a member of the Pacific Gas and Electric Co. board of directors. Also, PG&E Corp. and its utility unit, Pacific Gas and Electric Co., made seven new appointments at the officer level. And others...