Renewable energy is energy that is generated from natural processes that are continuously replenished. This includes sunlight, geothermal heat, wind, tides, water, and various forms of biomass. This energy cannot be exhausted and is constantly renewed.
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Alternative energy is a term used for an energy source that is an alternative to using fossil fuels. Generally, it indicates energies that are non-traditional and have low environmental impact. The term alternative is used to contrast with fossil fuels according to some sources. By most definitions alternative energy doesn’t harm the environment, a distinction which separates it from renewable energy which may or may not have significant environmental impact.
Renewable energy sources account for a growing chunk of energy consumption in Europe, the U.S., and the wider world. They are a fast-growing source of clean, low- or zero-carbon electricity. While cost can sometimes be a barrier to the adoption of renewable sources—as we will explore in more detail later—rapid advances in technology, supply chains, and government policy have contributed to their growth in recent years. These renewable energy sources are important because they provide reliable power supplies and fuel diversification. These help to improve energy security, the environment, and conserve natural resources and habitats. They also reduce the need for costly fuel imports and accidents such as oil spills, such as the Deepwater Horizon oil spill of 2010 which claimed the lives of 11 rig workers and millions of marine animals, including mammals, birds, and fish.
Different Types of Renewable Energy:
- Solar renewable energy
- Wind renewable energy
- Hydroelectric renewable energy
- Geothermal renewable energy
Advantages of Renewable Energy:
- They won’t run out
- They save money
- They create jobs
Challenges of Renewable Energy:
- Reliability issues
- Takes up space
- Not totally green