- 1. Which renewable energy source utilizes heat from within the Earth's crust?
A) Wind
B) Geothermal
C) Solar
D) Hydropower
- 2. Which renewable energy source relies on the earth's water cycle?
A) Biomass
B) Hydropower
C) Geothermal
D) Solar
- 3. What renewable energy source can be generated from organic materials like wood and agricultural waste?
A) Biomass
B) Coal
C) Nuclear
D) Solar
- 4. Which renewable energy source is dependent on the growth of algae and other microorganisms?
A) Hydropower
B) Biofuel
C) Geothermal
D) Tidal
- 5. What is the average lifespan of a wind turbine?
A) 20-25 years
B) 5-10 years
C) 40-45 years
D) 30-35 years
- 6. What is the most abundant form of renewable energy on Earth?
A) Solar
B) Biomass
C) Nuclear
D) Wind
- 7. What is a significant challenge for integrating renewable energy into existing power grids?
A) Pollution
B) Reliability
C) Intermittency
D) Cost
- 8. Which renewable energy source is produced from the movement of ocean currents?
A) Geothermal
B) Hydropower
C) Tidal
D) Solar
- 9. What is a significant benefit of deploying renewable energy with electrification?
A) Electricity can move heat and vehicles efficiently and is clean at the point of consumption.
B) It eliminates all forms of pollution.
C) It reduces the need for fossil fuels immediately.
D) It completely stops climate change.
- 10. What percentage of global electricity supply did renewables account for in 2024?
A) 50%
B) Over 30%
C) 20%
D) 10%
- 11. By what year is renewable energy projected to reach over 45% of global electricity generation?
A) 2030
B) 2025
C) 2040
D) 2050
- 12. What is the main motivation for using renewable energy instead of fossil fuels?
A) To promote nonrenewable resource extraction.
B) To reduce greenhouse gas emissions, which cause climate change.
C) To support nuclear power development.
D) To increase energy production costs.
- 13. What percentage of global electricity needs to be generated by renewables to achieve net zero emissions by 2050?
A) 70%
B) 50%
C) 100%
D) 90%
- 14. Which of the following is not an obstacle to the deployment of renewable energy?
A) The elimination of fossil fuel subsidies
B) Local opposition to land use for installations
C) Lobbying by incumbent power providers
D) Environmental damage from mining minerals
- 15. Why is nuclear power considered controversial as a renewable energy source?
A) Because it is the cheapest form of energy.
B) Because it produces no greenhouse gases.
C) Because it does not require any land use.
D) Because it requires mining uranium, a nonrenewable resource.
- 16. Which organization defines renewable energy as 'energy derived from natural processes that are replenished at a faster rate than they are consumed'?
A) The International Energy Agency
B) World Health Organization
C) International Renewable Energy Agency
D) United Nations Environment Programme
- 17. Which of the following is NOT considered a main type of renewable energy?
A) Nuclear power
B) Solar power
C) Hydroelectricity
D) Wind power
- 18. In which area does renewable energy not typically displace conventional fuels?
A) Hot water/space heating
B) Electricity generation
C) Industrial manufacturing
D) Transportation
- 19. What percentage of its electricity does the European Union aim to generate from renewables by 2030?
A) 30%
B) 40%
C) 60%
D) 50%
- 20. What accounts for more than 85% of all grid power storage?
A) Pumped-storage hydroelectricity
B) Batteries
C) Compressed air energy storage
D) Green hydrogen
- 21. What is a more economical means of long-term renewable energy storage compared to pumped hydroelectric or batteries?
A) Thermal energy storage
B) Flywheel energy storage
C) Green hydrogen
D) Compressed air energy storage
- 22. What is one way the industry sector can be coupled with power generation?
A) By increasing coal usage
B) By eliminating all industrial processes
C) By reducing renewable energy investments
D) By using hydrogen produced by electrolysis
- 23. What directive partially addresses cybersecurity challenges in the energy sector?
A) The European NIS2 directive
B) The Clean Air Act
C) The Paris Agreement
D) The Kyoto Protocol
- 24. By 2024, what percentage of global electricity supply was provided by solar photovoltaic capacity?
A) 10-12%
B) 6–7%
C) 3-5%
D) 15-20%
- 25. What can happen to wind turbines during icing conditions?
A) Their efficiency increases
B) They require less maintenance
C) They produce more energy
D) They may face damage
- 26. What is one measure being adopted to harden renewable energy infrastructure?
A) Eliminating wind farms
B) Reducing the number of solar panels installed
C) Increasing reliance on coal power
D) Developing climate-resilience standards
- 27. What can be a result of vulnerabilities in remote control systems for wind power farms?
A) : Targeted cyberattacks
B) Increased energy output
C) Reduced maintenance costs
D) Improved efficiency of turbines
- 28. How does climate change affect solar farms during heat waves?
A) Higher energy production
B) Reduced output
C) Lower maintenance needs
D) Increased efficiency
- 29. What is a strategy for maintaining energy security under severe weather conditions?
A) Eliminating renewable energy sources
B) Developing emergency-response protocols
C) Reducing grid capacity
D) Increasing fossil fuel usage
- 30. How much solar energy capacity was newly installed globally in 2021?
A) 250 GW
B) 100 GW
C) 170 GW
D) 300 GW
- 31. Which country and the United States were the main recipients of solar technology investments collectively making up about half of all solar investments since 2013?
A) Germany
B) China
C) Japan
D) India
- 32. What is the primary method for harnessing solar energy, accounting for around two-thirds of global capacity as of 2022?
A) Concentrated solar power (CSP)
B) Photovoltaics (PV)
C) Passive solar
D) Solar thermal
- 33. Which country experienced a significant increase in solar investments due to its feed-in tariff program?
A) Japan
B) Germany
C) India
D) Vietnam
- 34. What was the total addition of solar PV and CSP capacity globally between 2013 and 2021?
A) 900 gigawatts (GW)
B) 714 gigawatts (GW)
C) 800 gigawatts (GW)
D) 500 gigawatts (GW)
- 35. How much solar thermal capacity was newly installed globally in 2021?
A) 50 GW
B) 100 GW
C) 150 GW
D) 25 GW
- 36. What physical effect do photovoltaic systems utilize to convert light into electrical direct current?
A) Thermoelectric effect
B) Seebeck effect
C) Piezoelectric effect
D) The photoelectric effect
- 37. What was the first utility-scale solar power plant built in?
A) Las Vegas, Nevada
B) Phoenix, Arizona
C) Hesperia, California
D) San Francisco, California
- 38. Which company built the first utility-scale solar power plant?
A) Siemens
B) Tesla
C) ARCO
D) General Electric
- 39. What percentage of global electricity demand was met by wind-generated electricity in 2015?
A) Nearly 4%
B) Less than 1%
C) Over 10%
D) Exactly 20%
- 40. Which country had the highest percentage of its electricity demand met by wind energy in 2015?
A) Denmark
B) Spain
C) China
D) United States
- 41. How many countries had laws regulating the renewable energy sector as mentioned in the text?
A) 100 countries
B) 156 countries
C) 200 countries
D) 150 countries
- 42. What percentage of the Middle East's energy supply is planned to come from green projects by 2050?
A) 15%
B) 26%
C) 10%
D) 40%
- 43. How many countries adopted some form of renewable energy policy in 2017?
A) 121
B) 160
C) 75
D) 176
- 44. Which technology converts mechanical stress or vibration into an electrical charge?
A) Sand battery
B) Marine energy
C) Enhanced geothermal systems
D) Piezoelectricity
- 45. Which crop is a promising alternative source of bioethanol due to its climate tolerance?
A) Wheat
B) Sweet sorghum
C) Sugarcane
D) Maize
- 46. As of April 2019, how many member states did IRENA have?
A) 160
B) 121
C) 200
D) 75
- 47. Which country had the most geothermal capacity as of 2023?
A) Kenya
B) Indonesia
C) United States
D) Philippines
- 48. How many countries had signed the charter of IRENA by its formation in 2009?
A) 160
B) 50
C) 75
D) 100
- 49. What percentage of the world's electricity was generated by renewables as of 2022?
A) 19%
B) 28%
C) 35%
D) 40%
- 50. What is a common method to increase the efficiency and capacity of existing dams?
A) Repowering old dams
B) Using solar panels on dam surfaces
C) Building new reservoirs
D) Reducing water flow
- 51. What was the percentage of world's electricity generated by renewables in 1990?
A) 25%
B) 28%
C) 15%
D) 19%
- 52. What was the increase in renewable energy investment from 2021 to 2022?
A) 75%
B) 16%
C) 24%
D) 5.6%
- 53. Which metal is essential for wind power and requires large amounts?
A) Graphite
B) Copper
C) Nickel
D) Lithium
- 54. What is a potential consequence for African countries with weak governments that rely on fossil fuel revenue?
A) Higher political instability or popular unrest
B) Increased economic growth
C) Decreased military coups
D) Stable governance
- 55. Which European Commissioner for Climate Action suggested reducing reliance on fossil fuels in response to the 2021 global energy crisis?
A) Frans Timmermans
B) Ursula von der Leyen
C) Josep Borrell
D) Margrethe Vestager
- 56. Which country is mentioned as a significant producer and exporter of both oil and renewable energy?
A) Russia
B) Saudi Arabia
C) Norway
D) Qatar
- 57. Which metal is required in smaller amounts for wind power?
A) Neodymium
B) Aluminum
C) Zinc
D) Copper
- 58. Which country has the world's largest tidal power station?
A) United States
B) South Korea
C) Japan
D) Finland
- 59. Which country is not mentioned as having large hydroelectric developments?
A) Norway
B) Canada
C) China
D) Brazil
- 60. What is essential to ensure renewable energy sustainability according to the text?
A) Halting wind power development.
B) Increasing fossil fuel usage.
C) Recycling metals after devices are spent.
D) Reducing solar panel production.
- 61. What was China's contribution to global renewable electricity increase in 2021?
A) A quarter
B) Two-thirds
C) One-third
D) Almost half
- 62. What is the approximate amount of infrared thermal radiation emitted by Earth?
A) 5.6 x 1011 W
B) 2.3 x 109 W
C) 1.5 x 108 W
D) 1017 W
- 63. What percentage of biodiesel was produced from used cooking oil as of 2015?
A) 20%
B) 25%
C) 10%
D) 14%
- 64. Which type of wind turbine investment dominated from 2013 to 2022?
A) Onshore wind
B) Hybrid wind systems
C) Offshore wind
D) Vertical axis wind turbines (VAWTs)
- 65. In 2017, how many countries had national targets for renewable energy?
A) 176
B) 100
C) 75
D) 121
- 66. Which country is a global leader in renewable energy due to its use of geothermal and hydroelectric resources?
A) Iceland
B) Kenya
C) Indonesia
D) United States
- 67. What is a non-food resource that grows around 20 times faster than most food crops and can be used for biofuel?
A) Corn
B) Sugarcane
C) Maize
D) Algae
- 68. How many countries had installed 3,146 gigawatts of renewable energy by 2021?
A) 135 countries
B) 150 countries
C) 100 countries
D) 120 countries
- 69. Which country relies on geothermal energy for 43% of its total electricity production?
A) Kenya
B) Philippines
C) Indonesia
D) United States
- 70. What is the role of hydrogen fuel cells in transportation according to the text?
A) Not mentioned as a viable option
B) Used extensively across all transport sectors
C) Occasionally used for heavy transport
D) Mainly used for passenger vehicles
- 71. By what year did global renewable power capacity reach 4,300 gigawatts?
A) 2024
B) 2025
C) 2023
D) 2026
- 72. Which sector is not explicitly mentioned as part of global and national renewable energy policies?
A) Agriculture
B) Buildings
C) Transport
D) Healthcare
- 73. What is a common use of geothermal energy in Iceland?
A) Generating electricity
B) Industrial processes
C) Heating homes
D) Transportation fuel
- 74. What is a niche source of bioenergy that can be converted into methane?
A) Maize
B) Rapeseed oil
C) Cow dung
D) Sugarcane
- 75. What percentage of solar power utilization could theoretically solve Humankind's energy problems?
A) 75%.
B) 100%.
C) 50%.
D) 2%.
- 76. How much did offshore wind installation costs decrease from 2013 to 2022?
A) 45%
B) 69%
C) 24%
D) 33%
- 77. Which type of biofuel is produced by fermenting the sugar components of crops like sugarcane and maize?
A) Algal fuel
B) Bioethanol
C) Biodiesel
D) Biojet
- 78. Which type of waste is produced as a result of rare-earth mining?
A) Low-level radioactive waste
B) Non-toxic industrial waste
C) Chemical sludge
D) Organic waste
- 79. What percentage of renewable capacity added in 2022 had lower costs than electricity generated from fossil fuels?
A) 50%
B) 70%
C) 95%
D) ~86%
- 80. Which technology uses the mixing of fresh water and salty sea water to generate electricity?
A) Wave power
B) Tidal power
C) Reverse electrodialysis (RED)
D) Marine current power
- 81. When was the International Renewable Energy Agency (IRENA) formed?
A) 2017
B) 2009
C) 2015
D) 1999
- 82. In which country is the Shuaibah Two Solar Facility located?
A) Saudi Arabia
B) Iran
C) UAE
D) Egypt
- 83. What percentage of the world's estimated hydroelectric potential has been developed?
A) Almost all
B) About one third
C) Half
D) Two thirds
- 84. What type of biofuel is expected to help reduce carbon dioxide emissions from long-haul flights in the short term?
A) Bioethanol
B) Biojet
C) Biodiesel
D) Algal fuel
- 85. What is the main advantage of enhanced geothermal systems over conventional geothermal energy extraction?
A) Higher efficiency in converting sunlight to electricity
B) Feasibility anywhere in the world depending on drilling costs
C) Lower initial setup cost
D) Ability to store large amounts of heat energy
- 86. What is a significant biomass energy source as of 2012?
A) Natural gas
B) Petroleum
C) Coal
D) Wood
- 87. What percentage of the world's transport energy demand was met by biofuels in 2022?
A) 4.2%
B) 2.7%
C) 3.5%
D) 5.0%
- 88. What is the expected growth factor for lithium demand from 2020 to 2040?
A) 42-fold
B) 25-fold
C) 20-fold
D) 10-fold
- 89. What is the depth range for drilling in enhanced geothermal systems?
A) 20 kilometres
B) 5 kilometres
C) 15 kilometres
D) Around 10 kilometres
- 90. What is the minimum ground temperature required for electricity generation using geothermal energy?
A) 30 °C (86 °F)
B) 150 °C (302 °F)
C) 200 °C (392 °F)
D) 100 °C (212 °F)
- 91. What is the estimated number of households in China with a portion of their hot water needs met by solar systems?
A) 70–80 million households
B) 50–60 million households
C) 30–40 million households
D) 20–25 million households
- 92. Which crop is the major feedstock for bioethanol production in the United States?
A) Maize
B) Rapeseed oil
C) Corn oil
D) Sugarcane
- 93. What did IEA Executive Director Fatih Birol suggest countries invest more in to ease pressure on consumers and achieve climate goals?
A) Renewables
B) Nuclear energy
C) Fossil fuels
D) Coal
- 94. Which element is required for renewable energy technologies, necessitating new supply chains?
A) Rare-earth elements
B) Oil
C) Coal
D) Natural gas
- 95. By what percentage did solar photovoltaic (PV) installation costs decrease from 2013 to 2022?
A) 24%
B) 33%
C) 69%
D) 45%
- 96. What is the global total of installed solar water heating capacity in GWth?
A) 150 GWth
B) 200 GWth
C) 250 GWth
D) 180 GWth
- 97. What was the total investment in wind technologies in 2020?
A) US$100 billion
B) US$200 billion
C) US$250 billion
D) US$161 billion
- 98. Which policy has significantly increased renewable adoption in China and Vietnam?
A) Carbon tax
B) Renewable portfolio standards
C) Feed-in tariffs
D) Cap-and-trade systems
- 99. What percentage of the world's wind resource is economically competitive compared to local fossil fuel generation?
A) Less than 5%
B) More than 100%
C) 15%
D) Around 60%
- 100. During which time can the technology converting Earth's infrared thermal radiation to electricity be used?
A) Exclusively in polar regions
B) Daytime
C) Nighttime
D) Only during solar eclipses
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