New Opportunities: ISO New England selected Vamsi Chadalavada as senior vice president and COO, replacing Stephen G. Whitley who retired after being named president and CEO of the New York ISO.
PG&E Corp. announced that Peter A. Darbee, chairman, CEO and president, will assume added duties of CEO and president of subsidiary Pacific Gas and Electric Co.
Ontario Power Authority appointed Colin Andersen CEO effective September 15. He held many senior positions in the Ontario Public Service, most recently as deputy minister of finance, secretary of the treasury of board, deputy minister of revenue, chair of the Ontario Electricity Financial Corp. and chair of the Ontario Financing Authority.
Calpine promoted Andre Walker to vice president, finance and investor relations, from director of that division.
PSEG named Randall E. Mehrberg to the new post of executive vice president for planning and strategy.
Ameren Corp. promoted Charles D. Naslund to chairman, president and CEO of Ameren Energy Resources and to chairman and president of Ameren Energy Generating Co. He was senior vice president and chief nuclear officer of AmerenUE. Adam C. Heflin, vice president of nuclear operations at AmerenUE, is promoted to senior vice president and chief nuclear officer of AmerenUE.