Renewable energy Flashcards

Learn about how renewable energy is beneficial to us

1
Q

What is renewable energy?

A

Renewable energy is produced using natural resources that are constantly replaced and never run out.

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2
Q

What do ground source heat pumps do?

A

Take low-level heat which occurs naturally underground an convert it to high-grade heat by using heat pump.

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3
Q

What does an Air source heat pump do?

A

Take low-level heat which occurs naturally in the air and convert it to high-level heat by using heat pump.

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4
Q

What are ground and air source heat pumps best used for?

A

Under floor heating.

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5
Q

What are the four main types of Hydro?

A

Dams

Pumped storage

Run of the river

Tidal power

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6
Q

What is Geothermal energy?

A

An energy contained in about 260 billion cubic metres of rocks and metallic alloys, just below the outer surface of the earth, that are at or near their melting points

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7
Q

What are Geothermal piles?

A

They are pile foundations with closed-loop ground source heat pump systems.

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8
Q

How do Solar thermal or solar hot water systems work?

A

By absorbing energy from the sun and transferring it, using heat exchangers, to heat water.

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9
Q

Solar electricity (photovoltaics), how does this transfer heat.

A

Convert sunlight into electricity.

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