How Do Solar Panels Work? is a TED-Ed lesson that covers the basics of what solar panels are made of and how electricity is generated from them. The video also delves into some of the political and societal barriers to solar panel installation and solar array developments.
How Do Wind Turbines Work? is a TED-ED lesson that covers the basics of how wind turbines harness the power of wind to generate electricity. The basic math of wind turbine design is also explained to viewers of the video. Overall, it's a fine lesson but not the most detailed of lessons.
Energy Now News is a YouTube channel featuring videos about energy in the news and educational videos about electricity. Energy 101: Electricity Generation covers the process of producing electricity and getting it to homes and businesses.
Idaho Power offers a short video overview of how hydroelectric dams generate electricity and the process of getting that electricity from a dam to a house. Before you show this video to your students, it might be worth pointing out to them who produced and why they produced it.