Right now, you are using electricity to power your computer. Most of our power comes from nonrenewable sources that can run out. In this lesson, learn about the many types of renewable energy sources that will never run out and could be used instead.
Renewable Energy Source
Every day we rely on energy to provide us with electricity, hot water, and fuel for our cars. Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.
Because fossil fuels can run out and are bad for the environment, it is important that we start switching to other energy sources, like renewable energy sources. These are energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment.
Currently, less than ten percent of all the energy we use comes from renewable sources. So, you might be wondering, ‘if renewable energy sources do not harm the environment and will not run out, then why are we not using them everywhere and all the time?’ It is because many of them are currently expensive to harness, are inefficient, or have other disadvantages. For example, using energy from the wind might be great in an area that is really windy all year-round, but it wouldn’t work so well in an area with very little wind.