Review session, Renewable Energy

Which of the following energy transitions did industrial civilizations NOT historically undergo?

• From hydropower to coal

• From coal to oil and natural gas

• From nuclear power to renewable energy

• From biomass to hydropower

What was the primary reason for the initial transition from biomass to hydropower in developing economies?

• The high cost of biomass

• Insufficient biomass supplies to support growing economies

• Technological advancements in hydropower

• Government policies promoting hydropower

According to the reading, what is the main driver of the current transition away from fossil fuels towards renewable energy sources?

• Technological stagnation in fossil fuel extraction

• Government mandates requiring renewable energy usage

• Environmental concerns, particularly climate change

• The abundance of renewable energy sources making them cheaper

What percentage of global electricity was generated by hydropower in 2008 according to the International Energy Agency?

• 10%

• 16%

• 25%

• 35%

Which of the following regions is NOT identified as having high potential for wind energy in the reading?

• Northern Europe

• Southern tip of South America

• Great Lakes region of the United States

• Southeast Asia

Biomass energy currently accounts for approximately what percentage of the world's primary energy supply?

• 5%

• 10%

• 20%

• 30%

Which of the following is a secondary source of solar energy?

• Solar thermal

• Wind energy

• Biomass

• All of the above

What is a major limitation of biomass energy as highlighted in the reading?

• High greenhouse gas emissions

• Limited land availability relative to energy consumption

• Inability to produce heat

• Lack of existing technologies

Which country is mentioned as having nearly all of its building space heated by geothermal water?

• Iceland

• United States

• China

• Brazil

What is the net energy ratio (EROI) for wind power according to the reading?

• 5

• 10

• 18

• 35