Renewable Energy is energy that can be used to power various kinds of devices. Before the mid-19th century, nearly all energy was generated by renewable resources. The oldest known application of renewable energy was harvesting biomass and using it to fuel fires. This practice was later widespread and was used for thousands of years. Harvesting wind energy is also an ancient practice, dating back 7,000 years to ships in the Persian Gulf and the Nile. In addition, geothermal energy has been used for space heating and bathing since the Paleolithic period.
Renewable Energy is growing as a major source of power. It currently accounts for approximately 12 percent of the energy produced in the U.S., and is used at every scale, from rooftop solar panels to whole rural communities. A key element in boosting renewable energy use is to modernize the electricity grid. This can be done through various ways, including allowing rooftop solar panels to sell back some of their power to the grid.
Wind energy is one of the most popular sources of renewable energy. It has become one of the cheapest energy sources in the United States. States with high wind speeds are ideal for wind energy development. Wind turbines can be placed on land or in water to harness the wind.