Power Grid

Power Plant• Generates electricity to be

distributed to our homes and businesses.

• Non-renewable:– Fossil fuels– Nuclear energy

• Renewable:– Solar– Hydroelectricity– Wind– Tidal– Geothermal

Step-Up Transformer

• Increases voltage in the electrical grid because of loss due to electrical resistance

Power/Transmission Lines

• High power lines that carry electricity from power plants to our homes and business.

Substation• Decreases

electrical energy• 155,00V7,200V• Examples:– Bull Frog corner– 51/Starlanding– HLHS/Latimer Park

Step-Down Transformer

• Decreases electrical energy–7,200V240V

• Found on telephone poles by homes and business–Looks like trash

cans

Homes/Businesses• Electricity is

transmitted on two lines with 120V each.– Some electrical energy is

lost due to electrical resistance• 110V (single line)

– TVs, computer, fans, cell phone charges, toaster

• 220V (double line)– Washer, dryers, ovens,

hot water heater