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This timeline of sustainable energy research from 2020 to the present documents research and development in renewable energy, solar energy, and nuclear energy, particularly regarding energy production that is sustainable within the Earth system. Renewable energy capacity has steadily grown, led by solar photovoltaic power. [1]
Scientists at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) have set a world record in solar cell efficiency with a photovoltaic device that converts 40.8% of the light that hits it into electricity. However, it was only under the concentrated energy of 326 suns that this was achieved.
The development of renewable energy and energy efficiency marked "a new era of energy exploration" in the United States, according to former President Barack Obama. [9] In a joint address to the Congress on February 24, 2009, President Obama called for doubling renewable energy within the following three years.
Solar Photovoltaic Energy Research, Development, and Demonstration Act of 1978: Accelerated solar power generation technologies; 1980 Energy Security Act, incorporating: [1] U.S. Synthetic Fuels Corporation Act; Biomass Energy and Alcohol Fuels Act; Renewable Energy Resources Act; Solar Energy and Energy Conservation Act; Geothermal Energy Act
An energy transition is a broad shift in technologies and behaviours that are needed to replace one source of energy with another. [14]: 202–203 A prime example is the change from a pre-industrial system relying on traditional biomass, wind, water and muscle power to an industrial system characterized by pervasive mechanization, steam power and the use of coal.
Below is a table listing available grant programs for renewable energy development, including wind power, by state. For more information on wind policy see also Database of State Incentives for Renewables & Efficiency. Table 3: State grant programs for renewable energy from the Database of State Incentives for Renewables and Efficiency (DSIRE)
With the introduction of the Renewable Energy Act in 2000, feed-in tariffs were adopted as a policy mechanism. This policy established that renewables have priority on the grid, and that a fixed price must be paid for the produced electricity over a 20-year period, providing a guaranteed return on investment irrespective of actual market prices.
Renewable energy (or green energy) is energy from renewable natural resources that are replenished on a human timescale. The most widely used renewable energy types are solar energy , wind power , and hydropower .