Read the following web article: energy.gov/articles/top-9-things-you-didnt-know-about-americas-power-grid. Do follow the links in the article to read more. Then write a short summary (about 400 words) in your own words highlighting whichever aspect of the article interests you - how the grid actually works, challenges with the grid, possible solutions. Clearly you won't be able to write about everything in the article, but keep it simple and keep it clear.