Robert S. Silberman has joined California Energy Co. Inc., the largest independent geothermal power producer in the world, as senior v.p. of project development and implementation.NUI Corp. has appointed James R. Van Horn general counsel and corporate secretary. Van Horn was previously senior v.p., general counsel, and secretary at Citizens First Bancorp. Inc.

The interim board of directors of WorldTel has elected Sam Pitroda chairman. WorldTel is a recently created organization dedicated to narrowing the global communications gap via commercial ventures in developing countries.

Virginia Power Co. has elected Larry W. Ellis senior v.p. of energy services for the utility's new Energy Services Business Unit. Thomas L. Caviness, Jr. was elected v.p. of retail energy services.

Southwestern Public Service Co. president and COO Coyt Webb will retire on September 1, after more than 31 years with the company. Senior v.p. David M. Wilks will assume Webb's position.

Robert D. Glynn, Jr., president and COO of Pacific Gas and Electric Co. has been elected to the board of directors of Pacific Gas Transmission Co.

Public Service Co. of Colorado has named Michael J. Quigley president of its new e prime energy services subsidiary. Quigley was most recently executive v.p. and member of the board of directors of Associated Natural Gas Co. in Denver.

Cathy B. Casella has been named manager of investor relations for The Coastal Corp. She was previously a research analyst for CS First Boston.

Patrick Henry Wood III has become the 11th chairman of the Texas Public Utilities Commission, succeeding Robert W. Gee. Gee will continue to serve as chairman of NARUC's Electricity Committee.

Alan Richardson has replaced Larry Hobart as executive director of the American Public Power Association. Hobart, who retired, served APPA for 35 years, nine as executive director.

The Interstate Natural Gas Association of America has appointed Terry D. Boss v.p. of environment, safety, and operations.

First Pacific Networks has appointed M. Peter Thomas president and CEO. Thomas, a member of the board of directors and former president and CEO of Ericsson North America, will work closely with C.J. Brunet, who continues as chairman of the board.

William R. Moroney has been named president and CEO of the Multimedia Telecommunications Association (MMTA). Moroney is currently president and CEO of the Electronic Messaging Association.

David M. Johnson has been named v.p. of sales and marketing for EHV-Weidman, a leading manufacturer of transformer insulation.

Ernest Z. Bower IV will replace Robert E. Driscoll as president of the U.S.-ASEAN Council. Driscoll is leaving to join Mission Energy Co.

Ivan Selin has stepped down as chairman of the Nuclear Regulatory Commission after four years. Selin plans to work with his son to build gas-fired power plants in Asia.

Ronald E. Seeholzer has been made senior investor relations advisor at Centerior Energy.

Amerigas, Inc., a wholly owned subsidiary of UGI Corp., has elected David C. Riggan v.p.-finance and accounting. Riggan was previously v.p. and controller of the American Tobacco Co. Brendan P. Bovaird has been made v.p. and general counsel of the parent company.

T. Gary Broughton, senior manager at the Three Mile Island Nuclear Station will become president of GPU Nuclear Corp., the nuclear subsidiary of General Public Utilities Corp. Broughton will replace Philip R. Clark, who is retiring.

The U.S. Committee on Large Dams has elected Glenn Tarbox president. Tarbox is national director of water resources for R.W. Beck, one of the nation's leading consulting and engineering firms.

Dick Lord, formerly marketing manager and g.m.-Asia Pacific for Landis & Gyr, has been named v.p. and g.m. of the utilities division for Energy Innovations, Inc. Energy Innovations, a wholly owned subsidiary of DPL, Inc., provides remote monitoring and control solutions for a wide variety of applications and industries. t

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