About Us

Yeadon Energy Systems, Inc. (YES ™) is an electrical/mechanical engineering consulting service that specializes in the design and prototype fabrication of electric motors, generators, actuators, and other electromagnetic devices. Other services include failure analysis, electrical testing, electric motor design software, and professional development training for engineers.

Yeadon Energy Systems, Inc. (YES ™) was established in 1996. Founder and President William H Yeadon, PE, has 49 years of experience in the motor industry and is the editor of Handbook of Small Electric Motors . He is a well respected active member of the following engineering associations: SMMA (Motors and Motion Association), EMCWA (Electrical Manufacturing and Coil Winding Association), NSPE, and IEEE. YES ™ has served private manufacturers for 19 years fulfilling contracts of up to $640k. YES ™ has subcontracted on behalf of the DOE and DOD.
    President: William H. Yeadon, P.E.
    Mr. Yeadon is a graduate of the University of Dayton and a registered professional engineer. He has 49 years of experience in the electric motor industry through employment with Redmond Motors, A.O. Smith, Warner Electric, Barber-Colman and Yeadon Energy Systems. His expertise is in the areas of electric motor and generator design and development, production, quality, and management.  Mr. Yeadon is editor-in-chief of the McGraw-Hill  Handbook of Small Electric Motors a valuable comprehensive reference of all types of motors up to 10 horse power. The book covers theory through application and manufacturing. He is the original software developer of YES software, an electric motor design tool. Mr. Yeadon has also taught courses for SMMA, EMCWA, and private companies either by on-site classroom instruction or by teleconferencing

Mr. Yeadon is a member of the following professional associations:


Small Motors and Motion Association (SMMA). He serves as a SMMA Motor College committee member and instructor.


Institute of Electrical and Electronic Engineers (IEEE)


Electric Motor and Coil Winding Association (EMCWA)


National Society of Professional Engineers (NSPE)


Michigan Society of Professional Engineers (MSPE).  He serves as the Douglas Houghton chapter Scholarship Chairman.


Vice President - Engineering: Bradley M. Frustaglio, P.E.

    Mr. Frustaglio is a graduate of Michigan Technological University and a registered professional engineer.  He has 15 years of experience with YES ™ as an electric motor designer, electric motor tester, and software developer. Mr. Frustaglio is a member of SMMA, and is a contributor to the Handbook of Small Electric Motors.  He is the on-going software developer and software trainer of YES software, an electric motor design tool.
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YES ™ is a trademark of Yeadon Energy Systems, Inc.
Yeadon Engineering Services, P.C. ™ is a trademark of Yeadon Engineering Services, P.C.