While renewable energy is often thought of as a new technology, harnessing nature’s power has long been used for heating, transportation, lighting, and more. For example, sunlight and wind keep shining and blowing, even if their availability depends on time and weather. Renewable energy, often referred to as clean energy, comes from natural sources or processes that are constantly replenished. Here’s what you should know about the different types of renewable energy sources-and how you can use these emerging technologies in your own home. Biomass and large hydroelectric dams create difficult trade-offs when considering the impact on wildlife, climate change, and other issues. But not all sources of energy marketed as “renewable” are beneficial to the environment. This means that renewables are increasingly displacing “dirty” fossil fuels in the power sector, offering the benefit of lower emissions of carbon and other types of pollution. American solar and wind generation are breaking records and being integrated into the national electricity grid without compromising reliability. Renewable power is booming, as innovation brings down costs and starts to deliver on the promise of a clean energy future.
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