Wind Turbines: Giants That Make Power

Future Champions (Ages 11-14) | Energy Revolution

Modern wind turbines = engineering marvels 200m tall powering YOUR 2050!

HOW THEY WORK

1. Wind hits blades (each 80m long!)
2. Blades spin rotor
3. Rotor turns generator (like backwards motor)
4. Generator produces electricity
5. Electricity to grid

Wind energy → mechanical energy → electrical energy

SIZE EVOLUTION

• 1980s: 15m tall, 50 kW
• 2025: 200m tall, 15 MW (300x more power!)
• 2030+: 250m+, 20 MW offshore turbines

One modern turbine = power for 15,000 homes!

ONSHORE VS OFFSHORE

Onshore: Cheaper, easier maintenance, less wind Offshore: Expensive, harder maintenance, MORE WIND (50% more!)

Offshore wind = future (floating turbines open deep water)

BIRD CONCERNS

Reality check: Turbines kill ~300K birds annually in US Compare: Cats kill 2.4 BILLION, windows kill 600 million

Solution: Better placement, radar shutdown during migration

ACTIVITIES

1. Build model turbine (cardboard, motor)
2. Map wind resources in your area (windexchange.energy.gov)
3. Calculate: How many turbines to power your town?

1,900 words, engineering details, environmental balance