Renewables

Question 1

Solar power:

What is the energy source?

Answer 1

The sun.

The sun traps and directs Rays of the sun,water can be heated, stops heat escaping

Question 2

Hydroelectric:

What is the energy source?

Answer 2

Water power.

Places with high rainfall, fast flossing rivers can be damned to help generate electricity

Question 3

Waves:

What is the energy source?

Answer 3

There is enough energy in waves around Britain to generate half of the electricity required for the whole country

Question 4

Advantages of windmills

Answer 4

• High winds in the winter when energy is needed most

* clean

Question 5

Advantages of solar power

Answer 5

• becoming cheaper
• clean
• readily available in warmer climates

Question 6

Advantages of hydroelectric power

Answer 6

• endless supply of water
• long plant lifetime
• very low generating costs
• clean and safe

Question 7

Advantages of wave power

Answer 7

• clean and efficient

* longer waves in the winter when energy is needed the most

Question 8

Disadvantages of wind mills

Answer 8

• not a constant supply
• competitive with power stations
• 10,000 machines needed to supply 20% of Britain’s electricity

Question 9

Disadvantages of solar power

Answer 9

• supply not continuous
• large number of panels needed to supply towers
• British climate too variable

Question 10

Disadvantages of hydroelectric power

Answer 10

• high costs of building scheme
• no use in flat or dry, sunny counties
• effects on the environment

Question 11

Disadvantages of wave power

Answer 11

• less economic than other sources
• waves aren’t always big enough
• problems with getting energy to share

Question 12

Windmills:

What is the energy source?

Answer 12

The wind.

Windmills/sails used to pump water and generate electricity