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Energy efficiency is a critical aspect of modern society, with a growing emphasis on reducing energy consumption and finding sustainable energy solutions. The field of energy efficiency encompasses a wide range of areas, including building design, transportation, and renewable energy sources. Whether you're an energy professional, a student of sustainable development, or just someone who wants to learn more about how we can reduce our carbon footprint, this list of energy efficiency trivia questions is sure to challenge and engage you.
From the latest developments in LED lighting and insulation technology, to the history of renewable energy and the science behind it, these trivia questions cover a broad range of topics. You'll test your knowledge of energy-saving practices, learn about new and innovative solutions for reducing energy use, and discover the benefits of energy efficiency for individuals, communities, and the planet as a whole. Whether you're looking to expand your knowledge or just want to put your energy smarts to the test, these trivia questions are a great way to get started.
So why not put your energy efficiency know-how to the test? Brush up on your understanding of the latest technologies, policies, and trends, and see how you measure up against others in the field. Whether you're an energy professional, a student, or just someone who is passionate about sustainability, this list of energy efficiency trivia questions is sure to be both challenging and fun.
1. Solar-powered desalination plants use the sun’s energy to take which shakable mineral you might keep on your kitchen table out of ocean water, thereby making it safe to drink?
Answer: Salt
2. Which color certificate is a tradable commodity that can be “earned” for generating renewable energy?
Answer: Green
3. Located in Vermont, what was the first U.S. city to provide its residents with 100% sustainable energy production that shares its name with a famous Coat Factory founded in 1972?
Answer: Burlington
4. Homer Electric will replace gas turbines on Alaska's Kenai Peninsula with lithium-ion Megapacks provided by what car-slash-clean energy company?
Answer: Tesla
5. Nest and Ecobee are examples of smart versions of what temperature equipment that can adjust temperature to not just be more comfortable, but also more efficient for the environment?
Answer: Thermostat
6. EV and hybrid car drivers in Rhode Island get a license plate with the signature blue waves turned what color?
Answer: Green
7. Wesley Snipes is probably shaking his head over Dyson's energy-efficient AM09 Hot & Cool fan and space heater, which is notably missing what pretty central fan part?
Answer: Blade
8. A big part of managing any equipment energy is what “t” machine, designed to be rotated by water, gas, or other fluids?
Answer: Turbine
9. In a 2012 speech, Barack Obama compared Boulder City's Copper Mountain Solar Facility to what ginormous hydroelectric piece of infrastructure straddling the Arizona-Nevada border?
Answer: Hoover Dam
10. In 1912, Giacomo Ciamician proposed using the sun’s energy to create carbohydrates and oxygen and harnessing the energy, thereby eliminating dependence on fossil fuels. This process mimics what chemical reaction that is already fundamental to the natural world?
Answer: Photosynthesis
11. Car “go-go juice” used to contain tetraethyl lead—until we realized it was a health and environmental hazard. Today, you’re filling up at the pump with the unleaded variety of what liquid?
Answer: Gasoline
12. The Japanese yachtsman Kenichi Horie was the first person to use solar power to cross what body of water in 1996?
Answer: Pacific Ocean
13. Eventually ordered removed by Reagan, solar panels were installed on the White House roof in the 1970s by which president?
Answer: Jimmy Carter
14. A major way that consumers can increase their energy efficiency is to replace light bulbs with what “i” quality? It’s a word that means to generate light by being heated, and it is linked to traditional light bulbs.
Answer: Incandescent
15. The per capita leaders in the use of solar hot water systems are Israel and what Mediterranean island nation with Greek and Turkish as its official languages?
Answer: Cyprus
16. CFLs use far less energy than conventional lightbulbs. The F and L stand for "fluorescent" and "lightbulb." What does the C stand for?
Answer: Compact
17. Introduced by Montana Senator James E. Murray, the Resources and Conservation Act of 1959 paved the way for what U.S. government agency to form in 1970?
Answer: Environmental Protection Agency
18. Many fluorescent light bulbs work by vaporizing what metallic element that is a liquid at room temperature?
Answer: Mercury
19. What “W” practice involves protecting a building and its interior from the elements, such as sunlight, precipitation, and wind, thereby reducing energy consumption and optimizing energy efficiency?
Answer: Weatherization
20. What gases trap heat from the sun in the Earth’s atmosphere and warm it up? The building of the same name does the same thing to help plants grow.
Answer: Greenhouse
21. What term that will make you think of the IRS and taxes is also used when talking about assessing a building to see out energy efficient it is (or isn’t)?
Answer: Audit
22. RECs are tradable and non-tangible energy commodities representing proof of a certain amount of energy being generated by more climate-friendly means than fossil fuels. What does REC stand for?
Answer: Renewable Energy Certificates
23. A massive solar farm meant to alleviate outages is being sold in blocks to what organization that manages Texas's electrical grid, and whose acronym is only one letter different than a certain futuristic Disney World theme park?
Answer: ERCOT
24. What bustling K-word energy do wind turbines convert to electrical energy? (Hint: It’s the kind of energy that is created by wind)
Answer: Kinetic
25. During 2021's UN Climate Change Conference in Glasgow, activists dressed as Pikachu to protest the continued use of coal by what Asian nation?
Answer: Japan
26. Also the name of a letter in the NATO Phonetic Alphabet, what Volkswagen model does Car and Driver rate as one of the most fuel-efficient non-hybrid, non-electric vehicles of 2021?
Answer: Golf
27. What 1962 Rachel Carson book addressed the environmental effects of pesticides? Its two-word title implied that poisoning the environment could stop plant growth entirely.
Answer: Silent Spring
28. California’s Sutter Amador Hospital meets more than half its electrical power needs through which renewable source?
Answer: Solar
29. American Boy Scouts and Girl Scouts can now earn solar energy merit badges after completing a program developed by a national non-profit that goes by what very guessable three-letter acronym?
Answer: SUN
30. What three-word term refers to a hypothetical machine that can perform work indefinitely without an external energy source in violation of the laws of thermodynamics?
Answer: Perpetual-motion machine
31. It is estimated that the Earth receives about 174 PW of energy from the Sun annually. What does PW stand for?
Answer: Petawatt
32. The U.S.'s leading state in solar energy typically generates more than 30% of the nation's total each month. What state is this?
Answer: California
33. The commonly used energy-efficiency certification, LEED, stands for Leadership in Energy and Environmental what?
Answer: Design
34. What is the term for an electrical grid that combines a variety of operations and energy measures to lower electrical demand? The term makes it sound like the grid could be especially intelligent.
Answer: Smart grid
35. What “S” company offers energy-efficient solutions to heating and cooling homes on the East Coast of the US? They share a name with an adjective for an object that has been fastened securely, such as an envelope.
Answer: Sealed
36. Commonly used in lightbulbs today due to its energy efficiency, LED is short for what three-word semiconductor light source?
Answer: Light-emitting diode
37. What 10-letter “G” word is a kind of energy whose resources are obtained using the heat located below the Earth’s surface?
Answer: Geothermal
38. What kind of door test do energy efficiency experts use to test the sealing efficiency of a home, changing air pressures in order to see how much air escapes? It’s also the word for a machine gardeners use to loudly and quickly move leaves around.
Answer: Blower Door Test
39. What term is used by energy efficiency experts to refer to the combined elements of the exterior of a building, such as walls, roof, and foundation? It is also an object used to contain a letter intended for mail.
Answer: Building envelope
40. What “C” term refers to a reduction of a customer’s energy use based on personal changes in behavior, reducing end use of energy service? It’s a word often used in terms of preserving natural land and aiding the environment.
Answer: Conservation
41. What is the name of the silicate material traditionally used for thermal insulation in buildings that is now banned in many developed countries due to the health risks associated with exposure to this material? This material’s name derives from the Ancient Greek for “unquenchable.”
Answer: Asbestos
42. What “r” precedes “braking” in an energy recovery mechanism in which a moving vehicle is slowed down by converting its kinetic energy into a reusable form? This same word is used to refer to a branch of medicine.
Answer: Regenerative
43. If you need to slow down the neutrons in your nuclear reactor, “heavy” water makes a good moderator. What is the chemical name for heavy hydrogen?
Answer: Deuterium
44. What term is used for a renewable energy resource that comes from organic matter (for example, wood and manure)?
Answer: Biomass
45. “QFs” make steam from the heat produced as waste by a process (e.g., manufacturing) that can be harnessed as an energy source (e.g., to power a wind turbine). What term describes the process QFs use?
Answer: Cogeneration
46. Beginning with the letters "P" and "D", what two-word phrase is used to describe building techniques that use natural energy, such as sun, wind, or gravity, to achieve results rather than relying on electricity?
Answer: Passive Design
47. Although considerably more energy efficient and longer lasting than traditional incandescent bulbs, CFLs can be problematic to dispose of due to containing which metallic element, number 80 on the periodic table?
Answer: Mercury
48. The energy-saving capacity of any technology must also include the amount of energy it takes to produce it. This kind of energy, defined as the sum of all energy required to create a product, has what alliterative name?
Answer: Embodied Energy
49. No, not Kevin. “K” stands for which term that’s the international standard measurement for absolute temperature?
Answer: Kelvin
50. An "exceedance" means that the levels of which pollutant are higher than the national or state quality standard?
Answer: Air
51. Written as m/J, which International System of Units measurement shows energy efficiency in transportation systems?
Answer: Metre per Joule
52. Which type of efficacy that starts with L describes how much visible light a source can produce when using a certain amount of power, and is measured in lumens per watt?
Answer: Luminous
53. What proposed form of energy generation can produce the same amount of energy with one kilogram of fuel as 10 million kilograms of fossil fuels? China’s prototype “Artificial Sun” sustained this for over 17 minutes.
Answer: Nuclear fusion
54. A hydroelectric plant generates electricity from the flow of which natural substance?
Answer: Water
55. Xyloid coal or lignite has the least amount of carbon—that's why it's also known as which color coal (since it’s not black)?
Answer: Brown
56. Which energy use theory states that as people “climb up” in social status, they’ll use more energy (for example, poorer people may have to use biomass like wood for heat while people with more money can afford coal and gas)
Answer: Ladder
57. Which theory of energy efficiency states that as energy becomes more efficient and affordable, demand for it will increase, which, ironically, means more will be used?
Answer: Jevons paradox
58. A lumen is the unit of measure of visible light emitted by a source. What two-letter symbol is used to denote lumens?
Answer: lm
59. According to the EPA, the average car on the road today puts out around 4.6 tons of which greenhouse gas every year?
Answer: Carbon dioxide
60. What sort of diagram, with different thicknesses of arrows breaking off, showing different quantities, is commonly used in showing energy efficiency?
Answer: Sankey Diagrams
61. The United States uses a lot of electricity on heating and cooling. How much, in percentage, is it on average?
Answer: 50%
62. The first energy-efficient light bulbs brought to the market, compact fluorescent lamps (CFLs), were invented in 1976 by whom?
Answer: Edward E. Hammer
63. Coal pollution mitigation is also referred to by which less fancy name that is simple and straight to the point: it’s the opposite of “dirty” coal?
Answer: Clean
64. In 1954, Bell Labs showcased the potential of the first silicon solar cell by making it turn a toy Ferris wheel. That display may or may not have impressed the scientist who used his earnings from inventing the telephone to get the labs up and running?
Answer: Alexander Graham Bell
65. Irving Langmuir in 1913 discovered that placing an inert gas in a light bulb doubled its efficiency. What gas did he use as an example for this?
Answer: Nitrogen
66. Passing away in 2017, after recognizing the economic and environmental benefits of energy-efficient equipment, who was nicknamed ‘the godfather of energy efficiency’?
Answer: Arthur Rosenfeld
67. To keep everyone in different countries on the same page, energy efficiency in transportation is measured in meters per what precious unit of energy named for an English physicist? And don't just pop down one letter.
Answer: Joule
68. "Nuclear Energy" is a bronze sculpture by Henry Moore located on the campus of what school? The sculpture marks the location of the world's first nuclear reactor, Chicago Pile-1.
Answer: University of Chicago
69. The total amount of greenhouse gas emissions created by human activity is better known by what two-word term, which originated from a concept conceived by environmentalists William E. Rees and Dr. Mathis Wackernagel during the 1990s?
Answer: Carbon footprint
70. Households in Aklan, Antique, Palawan, and Davao were part of a home solar power program courtesy of PEEP, the Energy Efficiency Project of what Pacific island nation?
Answer: Philippines
71. What is the watery-sounding name for an underground layer of liquid-bearing permeable rock that is occasionally used as a seasonal storage place for thermal energy?
Answer: Aquifer
72. A US government database of technologies and measures that help make energy more efficient has an acronym that spells out the name of what hoofed ruminants that are linked to elk and moose?
Answer: Database For Energy Efficiency Resources
73. The U.S. Department of Energy started touting the accelerated permitting of SolarApp+ via a tour by what energy secretary who took office in 2021?
Answer: Jennifer Granholm
74. If you count buildings with both emerging and verified status, which state has the most net-zero schools with a total of 88 as of data from 2019?
Answer: California
75. Which Liberty Lake, Washington-based water and energy management company got its humble start in Idaho in 1977 when a group of engineers was trying to find a better way to read utility meters? (Hint: It was a spin-off of Avista, which provided them with funding to make handheld meters)
Answer: Itron
76. What is the SI derived unit of electrical conductance? This unit is the reciprocal of resistance and is named after the founder of a German electrical and telecommunications company.
Answer: Siemens
77. Solar energy has been used to aid in the distillation of saline water since at least the 16th century when Arab chemists were documented using the process. More recently, a large-scale solar distillation project was built in 1872 in a South American mining town named Las Salinas in what country?
Answer: Chile
78. When used in a lamp, which heavy gas (Xe or atomic number 54) can be used for everything from strobe lights to sterilization?
Answer: Xenon
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