<human>:  I want to learn more about solar energy, what online resources can you recommend?
<bot>: I can recommend several online resources that can help you learn more about solar energy. Depending on your preferences, you may find the following options useful: 1) The Solar Energy Industries Association offers comprehensive materials on the industry, including research and educational materials, as well as information on the latest technologies and industry trends. 2) The National Renewable Energy Laboratory also features a wide range of materials on topics related to solar energy, such as case studies, policy reports and research briefs. 3) Finally, the Solar Power International website provides tools and resources that can help you explore the various types of solar energy technologies and applications.