Science
What is Renewable energy?
Renewable energy comes from natural sources that replenish faster than we use them — sunlight, wind, water, and heat from the Earth. Unlike fossil fuels, it doesn't run out and produces little or no carbon.
See it, don’t just read it.
Watch a 2-minute lesson with voice + animation that explains renewable energy.
Key things to understand
- 1Sources: solar, wind, hydro, geothermal, and biomass.
- 2They naturally replenish, so they won't run out.
- 3They emit little to no greenhouse gas during operation.
- 4Main challenges: intermittency (sun/wind vary) and storage.
Frequently asked questions
- What are examples of renewable energy?
- Solar, wind, hydroelectric, geothermal, and biomass.
- Why is renewable energy important?
- It cuts carbon emissions and won't run out, unlike finite fossil fuels.
- What is the main challenge of renewables?
- Many sources are intermittent (the sun sets, wind drops), so storing and balancing supply is key.