Advanced Systems for Power Engineering, Inc. (ASPEN) is a developer and marketer of engineering software for electric utilities.

ASPEN was founded in 1986 with a commitment to technical excellence, knowledgeable support and training, and continued software improvement in response to user input. Our customers include hundreds of electric utilities, consulting companies, government organizations and large industrial complexes all over the world. ASPEN is well known for its pioneering work in sparse-vector computational methods and graphical user-machine interface for power system applications. Everyone on the technical staff has had practical experience in electric utility companies. ASPEN is located in San Mateo, California, in close proximity to Stanford University and to the heavy concentration of high-tech companies in the Silicon Valley.

Contact Information

ASPEN, 49 N. San Mateo Drive
San Mateo, CA 94401 U.S.A.

Phone: (650) 347-3997
Fax: (650) 347-0233

Office hours:
Monday through Friday, 9 a.m. to 5 p.m. Pacific Time (GMT-7 in the summer, and GMT-8 in the winter).

English
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Spanish/Portuguese
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ASPEN OneLiner™, ASPEN Breaker Rating Module™, ASPEN Power Flow™, ASPEN Relay Database™, ASPEN DistriView™, ASPEN Line Database™, and ASPEN Line Constants Program™ are trademarks of ASPEN.