Electricity, energy and waves

Renewable energy sources (will never run out):

• wind 
• waves
• plants and trees
• solar 
• hydroelectric
• tidal

Non renewable energy sources (will run out):         blue = fossil fuels

• coal
• oil
• natural gas
• nuclear fuels

Stages of power lines and supplies:

stage 1: power is generated using a power generator, which could vary

stage 2: then the step up transformer increases the voltage by a number, the same number used in the step down transformer to decrease the voltage back to the original amount. This is so that there is less heat energy wasted in the wires as it alsoc decreasesb the current.

stage 3: the…