How many Ameriacan university or college offer graduate course in electric power?

There isn't a definitive, publicly accessible database that lists *every* US university offering graduate courses specifically titled "Electric Power." The offerings are spread across various departments (electrical engineering, energy systems, etc.) and with varying levels of specialization.

To find this information, you'd need to:

1. Search individual university websites: Look at the graduate programs within Electrical Engineering, Energy Systems Engineering, Power Systems Engineering, and related departments at universities known for strong engineering programs (MIT, Stanford, Caltech, Georgia Tech, etc.). Many will list specific courses or specializations within their graduate catalogs.

2. Use graduate program search engines: Websites like Peterson's, US News & World Report, and others allow you to search for graduate programs by subject area. Use keywords like "electrical power," "power systems," "energy systems," "power engineering," etc. Be aware that results might not be perfectly exhaustive.

3. Look at professional organizations: Websites of organizations like the IEEE (Institute of Electrical and Electronics Engineers) might list universities with strong power engineering programs.

Because of the distributed nature of this information, a precise number is impossible to give without an extensive manual search across hundreds of universities. However, it's safe to say that dozens, if not hundreds, of US universities offer graduate-level coursework related to electric power, though the precise courses and program structures vary significantly.