Portal:Environment/Selected article/10
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Renewable energy commercialization involves a broad, diverse array of technologies, including solar photovoltaics, solar thermal power plants, solar heating and cooling systems, wind power, hydroelectricity, geothermal, biomass, and ocean energy systems. The current status of these different technologies varies considerably. "First-generation" technologies are already mature and economically competitive, "second-generation" technologies are market ready and are being deployed at the present time, and "third-generation" technologies require continued R&D efforts in order to make large contributions on a global scale.
