Renewable Energy Sources Flashcards
What does wind power involve?
Putting lots of windmills up in exposed places like moors or round coasts.
What is in a wind turbine ?
In each wind turbine its has its own generator inside it.
The electricity is generated directly from the wind turning the blades, which turn the generator.
Name a pro about wind turbies?
There’s no pollution.
Name a negative about wind turbines?
They spoil the view.
You need 1500 wind turbines to replace one coal-fired power station.
1500 cover a lot of space- effect on scenery.
Very noisy.
Why is it bad the wind turbines rely on the weather?
There’s no power when the wind stop.
Impossible to increase supply when there’s extra demand.
What is the pricing like for a wind turbine?
Initial cost are quite high.
No fuel costs and minimal running costs.
How is there no permanent damage to the landscape?
If you remove the turbine, you remove the noise and the view returns to normal.
What do solar cells do?
Generate electric currents directly from sunlight.
Often the best source of energy for calculators and watches which don’t use much electricity.
Where is solar power often used?
In remote places where there’s not much choice and to power electric road side signs.
In solar cells there is no what…
Pollution.
Where is solar energy reliable?
In sunny places.
Only in the day time.
Solar power can still be cost-effectiveness in cloudy countries like Britain.
What is the cost like for solar cells?
Initial costs are high.
AFTER THAT ENERGY IS FREE AND RUNNING COSTS ALMOST NIL.
