- "Renewable resources include sunlight, wind, the movement of water, and geothermal heat."
Renewable energy includes the study of how to use clean energy sources, such as solar, wind, or biomass, in agricultural systems.
Solar Energy: The study of photovoltaic and solar thermal technologies, their design, installation and maintenance.
Wind Energy: The study of wind turbines, their design, installation and maintenance.
Hydropower: The study of hydroelectricity and water turbines, their design, installation and maintenance.
Biomass Energy: The study of biofuels, biomass power plants, and related technologies.
Geothermal Energy: The study of geothermal heat pumps, direct use of geothermal energy, and geothermal power plants.
Energy Storage: The study of energy storage systems, including battery storage, pumped hydro storage and compressed air energy storage.
Energy Efficiency: The study of energy-efficient building design, lighting, appliances and transportation.
Energy Policy: The study of renewable energy policy at local, national and international levels.
Energy Economics: The study of the economics of renewable energy, including cost analysis, subsidy policies, and investment options.
Environmental Impact: The study of the environmental impact of renewable energy technologies, including land use, water use, wildlife conservation and carbon emissions.
Microgrid Technologies: The study of small-scale, off-grid renewable energy systems that can be used in rural and remote areas.
Smart Grid Technologies: The study of new technologies that enable the integration of renewable energy into the existing power grid system.
Data Analytics: The study of data-driven approaches to optimizing renewable energy systems and improving energy efficiency.
Renewable Energy Integration: The study of how to integrate renewable energy sources with existing energy infrastructure.
Renewable Energy Education: The study of educational resources that teach people about renewable energy technologies and their applications.
Solar Energy: Energy from sunlight that can be collected and converted into electricity or heat.
Wind Energy: Energy harnessed from the motion of wind through turbines to produce electricity.
Hydropower Energy: Energy generated by the flow of water in rivers or dams through turbines to produce electricity.
Geothermal Energy: Energy derived from heat within the earth's crust and used to generate electricity and heat buildings.
Bioenergy: Energy derived from organic matter, such as wood, crops, waste, and other forms of plant and animal matter, to produce heat and electricity.
Tidal Energy: Energy generated by the kinetic energy of ocean tides and waves that can be captured by turbines to produce electricity.
Wave Energy: Energy generated by the movement of ocean waves that can be converted into electricity.
Biomass Energy: Energy derived from organic matter, such as wood, crops, waste, and other forms of plant and animal matter, to produce biofuels and biogas.
Hydrogen Energy: Energy derived from splitting water molecules into hydrogen and oxygen and using hydrogen as a fuel source for transportation and energy generation.
Ocean Thermal Energy Conversion (OTEC): Energy generated by exploiting the difference in temperature between surface waters and deep waters of oceans to produce electricity.
Solar Thermal Energy: Energy collected from the sun's rays and used to heat fluids that can be used for electricity or heating.
Wind/Solar Hybrid Energy: Energy generated by combining solar and wind power, used to produce electricity.
Fuel Cells: Energy generated by electrochemical reactions that transform hydrogen into electricity and heat.
Algae Energy: Energy produced from microorganisms that convert carbon dioxide to biofuels.
Concentrated Solar Power (CSP): Energy harnessed from the sun's rays, concentrating it to heat fluids that can be used for electricity or heating.
Thorium Energy: Radioisotope used to generate nuclear power without generating hazardous nuclear waste.
Magnetic Energy: Energy generated by magnetic fields, used to generate electricity.
Piezoelectric Energy: Energy produced from pressure or mechanical stress, such as in wave energy.
Waste-to-Energy: Energy derived from incinerating waste to produce heat and electricity.
Solar Chimneys: Energy harnessed from a tower, where solar heat is collected at the base, and heat is drawn out the top via convection to generate electricity.
- "Although most renewable energy sources are sustainable, some are not."
- "Renewable energy is often used for electricity generation, heating and cooling."
- "Renewable energy projects are typically large-scale, but they are also suited to rural and remote areas and developing countries."
- "From 2011 to 2021, renewable energy grew from 20% to 28% of global electricity supply."
- "Use of fossil energy shrank from 68% to 62%, and nuclear from 12% to 10%."
- "Power from sun and wind increased from 2% to 10%."
- "The share of hydropower decreased from 16% to 15%."
- "There are 3,146 gigawatts installed in 135 countries."
- "156 countries have laws regulating the renewable energy sector."
- "In 2021, China accounted for almost half of the global increase in renewable electricity."
- "Globally there are over 10 million jobs associated with the renewable energy industries."
- "Solar photovoltaics being the largest renewable employer."
- "Renewable energy systems are rapidly becoming more efficient and cheaper."
- "A large majority of worldwide newly installed electricity capacity being renewable."
- "Many nations around the world already have renewable energy contributing more than 20% of their total energy supply."
- "Some studies have shown that a global transition to 100% renewable energy across all sectors – power, heat, transport, and industry – is feasible and economically viable."
- "Deployment of renewable energy and energy efficiency technologies is resulting in significant energy security, climate change mitigation, and economic benefits."
- "Renewables are being hindered by hundreds of billions of dollars of fossil fuel subsidies."
- "In international public opinion surveys, there is strong support for renewables such as solar power and wind power."