FAQs About Renewable Energy

Renewable energy comes from natural sources that are constantly replenished, such as sunlight, wind, rain, tides, waves, and geothermal heat. Unlike fossil fuels, these sources are sustainable and environmentally friendly.

• Solar energy – harnessed from sunlight
• Wind energy – captured using wind turbines
• Hydropower – from moving water
• Geothermal energy – from Earth's internal heat
• Biomass energy – from organic materials like wood, crop waste, and animal manure

Renewable energy reduces our reliance on fossil fuels, cuts greenhouse gas emissions, supports energy security, and helps combat climate change. It’s key to a sustainable future.

It produces little to no carbon dioxide (CO₂) or other greenhouse gases. Switching to renewables can drastically reduce the emissions that contribute to global warming and extreme weather events.

Yes. As long as the sun shines, the wind blows, and water flows, renewable energy sources will be available. However, responsible management is still required, especially for biomass and hydropower.

While fossil fuels have historically had higher energy densities, renewable technologies are improving rapidly. For instance, modern solar panels can achieve 20–22% efficiency, and wind turbines are becoming increasingly powerful and efficient.

Yes. Countries like Iceland and Norway already get nearly 100% of their electricity from renewable sources. Others like Costa Rica are close behind. With the right infrastructure, it’s possible.

• Reduces pollution and health risks
• Creates jobs and boosts local economies
• Lowers long-term energy costs
• Increases energy independence
• Promotes innovation in technology

• Intermittency (sun doesn’t shine 24/7)
• High initial installation costs
• Land and resource availability
• Need for storage and smart grids
• Regulatory and market barriers

Yes. Governments offer subsidies, tax credits, and rebates to encourage adoption.

• In India, MNRE offers rooftop solar subsidies. Visit MNRE.gov.in
• In the USA, the federal solar tax credit (ITC) covers up to 30% of system cost. Learn more

Not anymore. The cost of solar and wind energy has dropped dramatically in the past decade, making them among the cheapest electricity sources in many parts of the world.
Read IRENA’s latest report

• Install rooftop solar panels
• Use solar water heaters
• Opt for green energy plans from your utility
• Use energy-efficient appliances and LED lighting

A Renewable Energy Certificate is proof that 1 megawatt-hour (MWh) of electricity was generated from a renewable energy resource. Buying RECs supports the renewable energy market.

• Renewable energy refers to resources that naturally replenish.
• Clean energy is any source that doesn't pollute the environment (e.g., nuclear is clean, but not renewable).

• Educate themselves and others
• Support policies and leaders pushing for renewables
• Invest in clean energy companies
• Reduce personal energy use and carbon footprint