Renewables' environmental benefits are the initial value proposition that drew them into the energy generation business. Renewables may soon be able to match the performance of traditional generating sources as technology improves and the cost of generation from conventional sources rises.
Fremont, CA: A renewable power generation method captures and converts a naturally occurring energy flux, such as wind, sun, heat, or tides, into electricity. Time constants, cycles, and energy densities vary in natural processes. In contrast to conventional fossil-fuel and nuclear electricity-generating facilities, which can be positioned some distance from their fuel sources, renewable electricity generation technologies must be located where the natural energy flux occurs to harness these sources of energy. Renewable technologies also follow a paradigm that differs from traditional energy sources in that renewable energy can be regarded of as made energy, with the manufacturing process accounting for the majority of prices, external energy, and material inputs.
Here are some of the technologies for the generation of renewable electricity:
Wind power converts the kinetic energy of moving air into electricity and other forms of energy using a wind turbine and related components. From the time of the ancient Greeks to the present, wind power has been utilized. With the passage of the Public Utilities Regulatory Policies Act in the 1970s, the modern era of wind-driven power generation began. Since then, both the advancement of wind technology and the construction of wind power facilities have increased. Large wind turbines that feed into the electrical grid create the largest bulk of wind power, whereas tiny wind turbines often offer electricity directly to clients.
Solar photovoltaic power
Solar energy is generated by turning the sun's radiant energy into electricity using photovoltaics or concentrating devices. When sunlight contacts the PV cell's surface, some photons are absorbed, causing the solar cell to liberate electrons, which are then utilized to generate an electric current flow. Solar PV technology has progressed to various stages of development. Silicon flat-plate PV technologies are well-established and widely used nowadays. Silicon PV cells will become increasingly more appealing to customers as their production costs decrease and their efficiency and reliability improve. New technologies, such as thin-film, which has the potential to significantly cut module costs, are still in the early stages of development, requiring more study and testing.
Concentrating solar power
Optical systems are used in concentrated solar power (CSP) systems to concentrate beam radiation, which is the fraction of solar energy that is not scattered by the environment. Concentrated solar energy transforms the sun's energy into high-temperature heat that can be utilized to create electricity or power chemical operations. CSP, like CPV, necessitates the use of high-quality solar resources. For the southwestern United States and other parts of the world with enough direct normal sun radiation, concentrating trough and power tower systems could be the most cost-effective utility-scale solar energy technologies.