Show:
Solar
Wind
Hydro Electric
Geothermal
Other
100
A device used to convert solar thermal energy directly into electricity, it is made out of silicon
What are Photovoltaic cells?
100
more exploited in Europe than in America, because of favorable climate conditions and because of USA traditional relying on fossil fuels.
What is wind energy?
100
The most common type of hydroelectric power plant uses a dam on a river to store water
What is a reservoir ?
100
10^31 joules.
What is the earths heat content?
100
Device used to convert solar energy directly into electricity that is made out of an element called silicon
What are Photovoltaic Cells?
200
8 minutes and 17 seconds
What is the amount of time it takes for sunlight to hit the earth?
200
The placement of these is another important piece to this puzzle. They may be located in areas where the land is already used for farming or grazing, implementing the area once more for something positive for the environment.
What is a wind turbine?
200
These are the generating methods of hydroelectric energy (5)
What are 1.conventional dams 2.pumped storage 3.run-of-the river 4.tide and 5.underground
200
Prince Piero Ginori Conti tested the first geothermal power generator on 4 July 1904 in Larderello, Italy
What is the history of geothermal energy?
200
Most of the geothermal reservoirs in the United States are located in _________.
What is Hawaii?
300
In one day, it provides more energy than our current population would consume in 27 years.
What is the sun?
300
10 miles per hour
What is the minimum amount of wind needed to produce electricity
300
have long economic lives, with some still in service after 50–100 years
What are hydroelectric plants?
300
What are the requirements to generate electricity from gerothermal heat? i.e what are some examples of geothermal that are located deep underground?
What is the heat that must be carried to the surface by fluid circulation, either through: -magma conduits, -hot springs, -hydrothermal circulation, -oil wells, -drilled water wells, -or a combination
300
emit 97% less acid rain-causing sulfur compounds than are emitted by fossil fuel plants
What is Geothermal Plants?
400
Bbuilt the first thermal solar collector in 1767, which was later used to heat water and cook food
Who is the swiss scientist, Horace de Saussure??
400
_____ costs are relatively low _____costs are relatively high
What are operational costs? What are installation costs?
400
Disadvantages of hyrdo electric
What is -submersion of extensive areas upstream of the dams, -destroying biologically rich and productive lands -reservoirs cause habitat fragmentation of surrounding areas.
400
Naturally occurring large areas of hydrothermal resources are called _______. They are deep underground with no visible clues showing above ground. Geothermal energy sometimes finds its way to the surface in the form of: * Volcanoes and fumaroles (holes where volcanic gases are released) * Hot springs * Geysers
What are geothermal reservoirs ?
400
This type of energy grew by 50% in 2008 could supply at least 20% of U.S. electricity needs by 2030 while avoiding 7.6 cumulative gigatons of carbon dioxide.
What is wind energy?
500
This has more than enough area to produce enough solar electricity to supply all of its power needs.
What is an average home?
500
-propelled boats along the river Nile around 5000 B.C. -200 B.C. simple windmills started pumping water in China, and vertical-axis windmills -The Europeans got the idea of using wind power from Persians who introduced it into the Roman Empire by 250 A.D. -Frst practical windmills were made in Afghanistan around 7th century of our era. -Since then, technology has been improving so by the end of 11th century people in the Middle East were using windmills extensively for food production.
What is the history of wind energy?
500
The largest hydroelectric dam in the world, stands over 1000 ft tall
What is.. Rogun in Tajikistan?
500
Leads the world in electricity generation with geothermal power.
What is the United States?
500
About 30% of the sun’s energy that reaches the earth is immediately reflected back by _________, and another 20% is absorbed into _______.
What is the atmosphere?