In the world, there are a lot of countries with energy. But like other things energy is not infinite to use. Also the energy is not used or got made the same amount every year. It can be more energy or less energy year every year. That energy that we use are usually made by bad resources, like coal, and nuclear energy. That has lots of problems, Also not all countries have Energy or sources to make energy. Know on Until 2050 there must not be no country without Reusable energy to use in their country. We hope in the future no one have to pay any money to use Energy in their house.