Renewable Energy Trends and Challenges

The video discusses the limitations of renewable energy resources, such as high upfront costs, intermittency, storage capabilities, and geographical constraints. It highlights the global and Indian trends in renewable energy, noting the increasing contribution to electricity generation as fossil fuel use declines. The video also covers significant cost reductions in solar and wind energy, making them more attractive and creating job opportunities. Despite limitations, renewable energy is presented as a cleaner and healthier option for the future.

What is one of the main reasons for the high initial investment in renewable energy projects?

• Low demand for renewable energy

• High upfront costs

• Limited availability of resources

• Lack of government support

Why is intermittency considered a limitation of renewable energy?

• It is harmful to the environment

• It requires a lot of space

• It is not available 24/7

• It is too expensive

What is the current best technology for energy storage in renewable energy systems?

• Alkaline batteries

• Lithium-ion batteries

• Nickel-cadmium batteries

• Lead-acid batteries

What geographical factor can limit the effectiveness of solar energy in urban areas?

• Tall buildings blocking sunlight

• Proximity to water bodies

• Lack of open spaces

• High population density

Why might wind farms need to be located far from cities?

• To avoid noise pollution

• To reduce transportation costs

• To access stronger winds

• To minimize visual impact

What is a key advantage of renewable energy over fossil fuels?

• Cleaner and healthier

• Lower initial costs

• Higher efficiency

• Easier to transport

What trend is observed in electricity generation from renewable energy sources?

• Stable contribution

• Decreasing contribution

• Incremental increase

• Fluctuating contribution

What percentage reduction in cost has been observed for solar photovoltaic technology in the last decade?

• 39%

• 29%

• 47%

• 82%

How has the cost of producing renewable energy changed from 2010 to 2020?

• Fluctuated unpredictably

• Increased significantly

• Remained the same

• Reduced drastically

What is a potential benefit of the increasing investments in renewable energy?

• Increased fossil fuel use

• Decreased energy prices

• More job opportunities

• Reduced energy consumption