Okay little one, you know how some things take a long time to do, like building a big tower out of blocks, and some things are really quick, like blowing up a balloon? Well, imagine if we were talking about how much energy we use instead of how much time it takes to do something.
A load duration curve is like a picture that shows us how much energy we usually use over a certain amount of time. Let's say we want to see how much energy people use in a whole day. We would start by measuring how much energy they use every hour, from when they wake up until they go to bed.
Then we would put all those measurements into a graph, with time on the bottom and energy use on the side. It would look like a line that goes up and down depending on how much energy people use during each hour.
So now we have a picture that shows us how much energy people usually use in a day. But we could also make that picture for a whole year, or just for one season. And we could look at different groups of people, like people who live in a city versus people who live in the countryside.
Looking at a load duration curve helps us understand how much energy we use and when we use it the most. That way we can make better plans for how to make sure we have enough energy when we need it, without wasting too much energy when we don't need it.