The main difference between land use for solar and wind land
leased for wind turbines can be used for other purposes up to the
base of the turbine, whereas land leased for solar panels must be
dedicated to the panels
1 Million Correct Answers How many people were relocated to
complete the Three Gorges Dam?
10% Correct Answers After a uranium based fuel rod has spent
3 years in a reactor, how much of its uranium has been used?
13 Million Celsius Correct Answers The temperature at which
nuclear fusion becomes possible
1600 Panels Correct Answers Suppose a PV farm requires
2,000 panels to generate power at 20% efficiency. If a new panel
were invented that was 25% efficient, how many panels would
be required?
20% Correct Answers What percentage of the world's
electricity comes from hydroelectric dams?
24 Acres Correct Answers If a solar farm requires 40 acres in
Iowa (210 sunny days per year), how much land would it require
in Nevada (350 sunny days per year)?
3-4% Correct Answers Nuclear fuel rods are _____ uranium by
concentration
, 4 Billion Correct Answers The amount of subsidies paid out to
wind power producers in 2016
44,145 Watts Correct Answers If h = 3 meters, q = 3 cubic
meters per second, and efficiency is 50%, what is the power
output in watts? Assume 9.81
5 MW Correct Answers If a solar farm generates 10 MW in
Arizona (320 sunny days per year) is moved to Pennsylvania
(160 sunny days per year), what is the new power output?
50% Correct Answers A hydropower dam is rated for 1 GW
power generation. The annual energy output is 4380 GWh. What
percentage of its capacity is used?
59% Correct Answers Betz's law dictates that the maximum
efficiency that can be achieved with a wind turbine is
60 Million Correct Answers How many people receive
electricity from the Three Gorges Dam?
7% Correct Answers What percentage of the US's electricity
comes from hydroelectric dams?
8760 GWh Correct Answers If a microhydro dam generates 1
gW of power, how much energy will it produce annually?
Active Solar Heating Correct Answers Panels that use sunlight
to heat up air or water and transfer it to your forced air heating
or residential water heater