80 Renewable Energy Trivia Questions with Answers
80 public questions with answers, drawn from the well. How many can you answer?
Which renewable-energy process uses microorganisms to break down waste without oxygen?
Answer
Anaerobic digestion
Which renewable-energy device converts wave motion into electricity?
Answer
Wave-energy converter
Which country was the world’s largest producer of geothermal electricity in 2023?
Answer
United States
Which renewable technology concentrates sunlight with mirrors to produce high-temperature heat?
Answer
Concentrated solar power
Which gas makes up most of the energy content in biogas?
Answer
Methane
Which renewable fuel is made by fermenting cellulose-rich plant material into alcohol?
Answer
Cellulosic ethanol
Which wind turbine, built in Vermont in 1941, was the first megawatt-scale wind turbine?
Answer
Smith–Putnam wind turbine
Which French facility is one of the world’s largest solar furnaces?
Answer
Odeillo Solar Furnace
Which device converts sunlight into heat for hot water without first producing electricity?
Answer
Solar thermal collector
Which photovoltaic material is used in the thin-film solar technology abbreviated CdTe?
Answer
Cadmium telluride
Which Danish wind turbine, built in 1957, influenced the design of modern three-bladed turbines?
Answer
Gedser wind turbine
Which renewable source produced the most electricity worldwide in 2023?
Answer
Hydropower
Who patented the first commercial solar water heater, the Climax, in 1891?
Answer
Clarence Kemp
Which ocean-energy device uses a submerged turbine moved by tidal currents to generate electricity?
Answer
Tidal-stream turbine
Which renewable-energy project was the first offshore wind farm in the United States?
Answer
Block Island Wind Farm
Which solar power station in Spain was the first commercial solar-thermal tower plant?
Answer
PS10 solar power tower
What renewable-energy technology generates electricity from the temperature difference between warm surface seawater and cold deep seawater?
Answer
Ocean thermal energy conversion
Which African wind farm, opened in 2018, is Kenya’s largest wind-power project?
Answer
Lake Turkana Wind Power
Which solar thermal power facility in California uses three towers surrounded by fields of heliostats?
Answer
Ivanpah Solar Power Facility
Which 2009 organization promotes worldwide cooperation on renewable energy?
Answer
International Renewable Energy Agency