Renewable energy sources.

Detail

Solar energy is harvesting sunlight usually using solar panels to convert the sunlight into electricity.

Advantages

• No pollution
• Very useful
• Potential infinite energy supply

Disadvantages

• Cost a lot
• Unsightly
• Implementation are expensive

Detail

In the wind turbine, the wind turns the blade, that spins a shaft, which connects to a generator, to make electricity.

Advantages

• Creates a lot of energy 
• Cheapest way to make energy
• Running costs are low

Disadvantages

• Very noisy
• Manufacture and implemation are costly
• Initial costs are high

Detail

Can be produced where fast flowing tides enter river estuaries (mouths). Made by water turning a turbine in a dam.

Advantages

• Cheap
  
• No waste
• Energy prediction

Disadvantages

• Affects environment
• affects wildlife
• only a few estuaries are suitable.

Detail

Bio energy comes from living things e.g wood is a bio mass fuel, but will only be suitable if we replant the trees. Uses decaying animal waste to create electricity too. 

Advantages

• Very cheap
• Helps to get rid of waste
• If replaces bio mass can be a long-term sustainable energy source.

Disadvantages

• When burned gievs atmospheric pollutants
• Produces waste
• Is only a renewable resource if crops are replanted

Details

Cold water is pumped down and hits hot rocks under the ground and then the stea risees to make a generator work, then create electricity.

Advantages

• Potentially an infite energy supply
• No pollution
• Very low running costs

Disadvantages

• Expensive
• Very few places where it is possible
• Dangerous subsequences can come out

Details

Energy harnessed by the movement of water thrught rivers, lakes and dams.

Advantages

• Doesn't cause pollution
• No fuel costs
• will never run out unless severe drought.

Disadvantages

• Expensive
  
• Land is spoiled
• Can cause flooding

Details

The movement of seawater in and ot of captivity on the shore. Works by fixing A Limpet on the sea shore.

Advantages

• Ideal for an island country
  
• once constructed running costs are low
• More likely to be a local operation

Disadvantages

• Very noisy
• Construction is costly
• May be opposed by onvironmental groups