Overview on how to run the session

• Introduce yourself - outfit - safety equipment
• Go through the slides
• After anemometer slide (slide 6) - make the kids measure the wind speed using the anemometer
• Give out the boxes with wind turbines at slide 13.
• After slide 17 - do two rounds of testing per group where they can change the pitch angle and get the most electrical power. This can be done as a competition
• If you have a lot of time, you can also do the offshore slides
• At the end of the presentation (if there is time) - let the kids go outside and run with the turbine. Set a start and end point for them to run. They can then see the influence of wind speed on the spinning of the turbine

Wind4Kids workshop

www.wind4kids.com

How do we make electricity?

What do you use electricity for at home/classroom?

What is wind?

Can you measure the wind speed?

How much energy is in the wind?

Wind power = ½ x ρ x A x v³

• ρ = ?
• A = ?
• v = ?

Wind can turn a windmill!

This is a generator

This is a generator

This is a wind turbine

How big are the wind turbines?

Build your own wind turbine

Build your own wind turbine

​

1

2

3

The shorter piece points towards

the nose

Align the arrow with no. 3

Build your own wind turbine

5

6

4

Put the nacelle

on the tower

​

Put the short end in the nacelle

This is a wind turbine

How much electrical power can you generate?

Electrical power = V x I

V = ?

I = ?

​

What is the power curve?

Wind energy by country

Wind turbines on land or at sea?

Offshore map

• Most wind turbines in North sea
• Large development zones in planning
• New areas:
• Baltic sea
• Celtic sea
• Asia
• USA
• ...

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Bottom fixed structures

Used in shallow waters < 60m

• Jacket
• Multiple legs with braces
• Foundation piles at each of the feet
• Better for deeper waters >40m
• Monopile
• One big pile driven in the seabed
• >80% of all offshore wind turbines
• Shallow waters <40m
• Gravity base
• Heavy structure resting on the seabed

Jacket

Monopile

Gravity base

Floating structures

Deep waters > 60m �➡ Unlocks a lot of new potential offshore wind farm sites

• Spar buoy
• Hollow tube with ballast weight
• Spar-Submersible
• Multiple hollow tubes with ballast, stable due to larger base
• Tension Leg Platform
• Floating structure pulled below water level with tension cables

Biodiversity and Fishing

Maintenance

Electricity transport

• Inter-array cables
• Connect wind turbines with offshore substation (AC)
• Offshore substation
• Converts electricity from AC to DC for efficient transport
• Export cable
• Connects the offshore substation to the onshore substation
• Onshore substation
• Converts electricity from DC to AC
• Connects to the local network

Questions?

Wind4Kids

www.wind4kids.com