Wind Power Div B 2025 Invitational Practice

Who created the first known US wind turbine for electricity production?

• Charles Brush

• Poul la Cour

• James Blyth

• Joe Jacobs

Where was the first vertical-axis wind turbine created?

• America

• Great Britain

• France

• Denmark

Where was the first known wind turbine used to produce electricity found?

• Scotland

• France

• United States

• Ireland

What were the first windmills used for in Persia?

• Moving tractors

• Grinding grain

• Pumping water

• Cutting wood at sawmills

Where was the world’s first wind farm located?

• Denmark

• United States

• England

• Scotland

What share of US electricity generation was contributed to wind in 2022?

• 2%

• 5%

• 10%

• 15%

In 2022, in kWh, how much electricity was generated at utility-scale electricity generation facilities in the United States?

• 3.23 billion kWh

• 4.23 billion kWh

• 3.23 trillion kWh

• 4.23 trillion kWh

What percent of electricity generation is contributed by fossil fuels in the US, as of 2022?

• 40%

• 50%

• 60%

• 70%

What is the theoretical maximum power efficiency of a wind turbine generator?

• 14/27

• 15/27

• 16/27

• 18/27

In a horizontal axis wind turbine, how many blades does it typically have?

• 1-2

• 2-3

• 3-5

• 4-5