Energy Flashcards

1
Q

What percent of energy use is from fossil fuels? Renewables?

A

80%

17%

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2
Q

Which countries have the highest oil reserves

A

Venezuela, Saudi Arabia, Canada

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3
Q

Who has the highest oil production?

A

Saudi Arabia, US, Russia

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4
Q

Who has the most natural gas?

A

Russia, Iran, Qatar

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5
Q

Who produces the most natural gas?

A

US, Russia by far

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6
Q

Who has the most coal?

A

US, Russia, China

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7
Q

Who produces the most coal?

A

China, US.

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8
Q

How many years of each fossil fuel do we have left at current production rates?

A

50 years if oil, 60 years of gas, 200 years of coal

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9
Q

How is most energy wasted?

A

Through hot water.

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10
Q

How is Denmark more energy efficient?

A

Hot water byproduct is used to heat homes, factories, offices. They have district hot water boilers.

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11
Q

What are hurdles to renewable energy?

A

The cost is very high compared to fossil fuels because lack of effort to finance subsidies and development

The supply isn’t reliable - it’s not always windy, sunnny, etc.

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12
Q

Where is Hydro Power a major power source?

A

China, Brazil, Canada, and Norway.

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13
Q

What percent of global electricity is produced by hydro dams?

A

20%

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14
Q

What are the effects of dams?

A

They control flooding, use less fossil fuels

Gases given off by rotting vegetation in reservoirs.

Sediment flow is stopped

Pollution can build up

Loss of habitat and agricultural land

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15
Q

How quickly is wind power growing?

A

30% per year

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16
Q

How much of the world’s energy could wind supply?

A

20%

17
Q

Benefits of wind?

A

Cheap to produce, no emissions, little noise, can be used in combination with other things, like on farm land.

18
Q

Negatives of wind power?

A

Bird deaths, interfere with electronics, Ugly as fuck.

19
Q

Who is the leader in wind power and how much do they produce?

A

Denmark, 25% of their electric power

20
Q

What share does wind make up in Canada?

A

2.3%, growing 30% a year. Mostly in Ontario and Quebec

21
Q

Benefits of solar

A

Costs decreasing rapidly, no pollution or noise, no water, little maintenance, can be used remotely, can operate on small-large scales, portable, little land required

22
Q

What are sources of biomass energy?

A

wood, straw, vegetation, dung, crop waste, charcoal, landfill gas, logging waste.

23
Q

How much does biomass contribute to world energy?

A

10% 2.5 billion people main source in developing world.

24
Q

Who are the biggest producers of biofuel crops?

A

U.S. and Brazil. Canada #5

25
Q

Benefits of tidal energy

A

Predictable, no pollution, can protect coastlines

26
Q

Negatives of tidal energy

A

Energy produced depends on range of tides and bay area, could impact sediment movement and water quality, high inital cost.

27
Q

Rank types of Energy used in Canada

A

Hydro

Nuclear

Coal

Natural gas

Hydro higher than global average, coal lower