Not all electricity is distributed in the same way. Some is distributed through direct currents like batteries in a flashlight and some is distributed through alternating currents which is what you find in the power lines running through your neighborhood. The following from Derek Owens explains the differences between direct current and alternating current.
An interesting TED-Ed lesson on The Science of Static Electricity.
Minute Physics offers a short video explaining how modern light bulbs work and how light bulb design has changed over the last 100+ years.The video also includes explanations of the different types of modern light bulbs and their applications. The video is embedded below.
Hydro to Home is an interactive story of hydro-electric power from raindrops to homes. The story walks visitors through each step of the process of generating hydro-electric power and delivering to consumers' homes. The story is narrated and along the way there are interactive images that visitors can click on to learn even more information about hydro-electric power.
The Blobz Guide to Electric Circuits is a neat series of interactive animations designed to help students of elementary and middle school age learn how electric circuits work. There are five sections to the series. Each sections builds upon the lessons of the previous section. The series starts with the basics of what makes a circuit complete and concludes with diagramming and building circuits. Each section in the series has a few short lessons and is followed by an animated interactive activity to which students can apply what they have just learned.