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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]
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.
2019 – The world record for solar cell efficiency at 47.1% was achieved by using multi-junction concentrator solar cells, developed at National Renewable Energy Laboratory, Golden, Colorado, USA. [ 43 ] [ additional citation(s) needed ] This is above the standard rating of 37% for polycrystalline photovoltaic or thin-film solar cells as of 2018.
Renewable energy (also called green energy) is energy made 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 .
Renewable electricity generation by source and country in 2023 [1] This is a list of countries and dependencies by electricity generation from renewable sources. [1] Renewables accounted for 30% of electric generation in 2023. Renewables consist of hydro (47%), wind (26%), solar (18%), biomass (8%) and geothermal (1%).
California’s Public Utilities Commission (CPUC) estimates that the state will need over 40,000 megawatts of new renewable and energy storage projects by 2032 to keep pace with fully ...
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