Renewable Energy
Energy derived from natural sources that replenish themselves - including solar, wind, hydropower, geothermal, and biomass.
EnergyRenewable energy comes from sources that are naturally replenished on a human timescale. Unlike fossil fuels, renewables produce little or no greenhouse gas emissions during operation.
Main Types
- Solar: Photovoltaic (PV) panels and concentrated solar power (CSP) convert sunlight into electricity.
- Wind: Onshore and offshore wind turbines harness kinetic energy from wind.
- Hydropower: Dams and run-of-river systems generate electricity from flowing water.
- Geothermal: Heat from the Earth’s interior is used for electricity generation and direct heating.
- Biomass: Organic materials (wood, agricultural waste) are burned or converted to biofuels.
Growth and Impact
Renewables are the fastest-growing energy source globally. In 2024, renewable capacity additions exceeded 500 GW - a new record. The International Energy Agency (IEA) projects renewables will supply over 50% of global electricity by 2030.
Career Relevance
The renewable energy sector employs over 13 million people worldwide and continues to grow rapidly. Key roles include solar engineers, wind turbine technicians, energy analysts, and project managers.