Most renewable energy resources are clean, because they do not produce any pollution and cheap because their energy supplies do not have any cost.
Hydroelectric power stations, as well as tidal and wave generators, are very reliable, and both hydroelectric power stations and tidal generators produce large amounts of electricity.
At the present time, most renewable energy generators are expensive to set up. Also, sources such as wind turbines and solar cells rely heavily on the weather. If it is not a windy day, wind turbines will not turn. And if it is not sunny, solar cells will not produce much electricity.
|Fossil fuels||Reliable||Create pollution and will run out|
|Nuclear power||Reliable||Will run out and produce dangerous waste that is hard to dispose of|
|Wind turbines||Clean and cheap to run||Expensive to set up and wind does not always blow|
|Wave generators||Clean and cheap to run and Scotland has a lot of coastline||Expensive to set up|
|Tidal generators||Clean and cheap to run and produce a lot of electricity once running||Very expensive to set up and could be hazardous to local wildlife|
|Hydroelectric power stations||Clean and cheap to run||Expensive to set up and output could be affected by drought|
|Solar cells||Clean and cheap to run||Not always sunny and output does not always outweigh initial cost to set up|