University level courses with a photovoltaic component. A list of online and installer courses is here

Degree Programs in Photovoltaics

School of Photovoltaic and Renewable Energy at University of New South Wales, Australia.

Courses with a Photovoltaic Focus

ELEG620: Solar Electric Systems - University of Delaware
Solar Energy Technology and Applications - University of Delaware
Principles of Semiconductors  - Colorado State University (syllabus)
Fundamentals of Photovoltaics -  Massachusetts Institute of Technology (group page) 
Energia Fotovoltaica - University of Lisbon
Physik der Solarzelle - ISFH/University of Hameln (German)
Physik der Solarzelle - University of Konstanz (German)
Fundamentals of Solar Cells - University of Toledo
Solar Energy Technologies ENGN4524 - Australian National University
Solar Cell Design and Processing - Rutgers University (last run in 2005)

Science and Engineering Courses with a Photovoltaic Component 

Introduction to Disordered Solids - Colorado School of MInes (syllabus)
Semicondutor Devices - Georgia Institute of Technology (Includes presentation slides. Lecture 11c covers photovoltaics)