J. William (Bill) Caldwell, P.E.
Mr. Caldwell is principal of Independent Power
Associates (IPA) an energy consulting and technical services firm. He
has over thirty years experience as an engineer and consultant in cogeneration,
independent power plants, utility power plants and industrial facilities.
His background includes power plant operations, maintenance, technical training,
field engineering, and project management.
As an energy consultant, Mr. Caldwell has provided consulting services for several
power generation facilities, including nuclear, gas turbine, combined cycle, Cheng
cycle, biomass, geothermal and reciprocating engine technologies. He has technically
supported the development of IPP projects in Asia and Central America. Since 1987,
his staff has been contracted to perform all engineering and maintenance services
for United Airline's 30 MW cogeneration power plant at San Francisco International
Prior to founding IPA, Mr. Caldwell was a principal of Independent
Power Services, Inc., and co‑founder and Vice President of Eneract Management Services,
Inc. (EMS), an engineering consulting firm employing over sixty professional and
technical facility management specialists. At EMS, he led the company into
the independent power service market. During that time, he managed startup,
operator training, and field services for over two dozen cogeneration and independent
Mr. Caldwell's professional career also includes a position as Lead Senior Engineer
in the Management Services Division of Impell Corporation, where he provided consulting
services to the power industry. Before joining Impell, Mr.Caldwell was employed
in a technical capacity at Dresser Industries and Stanford Linear Accelerator Center.
He was also qualified as Engineering Watch Supervisor and Reactor Operator in the
Navy nuclear power program. He holds a Bachelor of Science degree in Mechanical
Engineering from Stanford University and is registered in the State of California
as a Professional Engineer in Mechanical Engineering.
Mr. Caldwell is the author of several technical publications and has conducted numerous
cogeneration industry seminars throughout the United States and Europe. He
is a past Director of the Western Turbine Users Inc. (WTUI), and holds memberships
in the Association of Energy Engineers (AEE), and the American Society of Mechanical
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more IPA Team members