Wind

  • November 2019
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  • Words: 372
  • Pages: 4
Riches from the Wind The people of La Muela, Spain, have suddenly become very wealthy. They enjoy exotic holidays and fantastic sports facilities. N What's made

them so much money?

Banco a l e u La M

N Generating

electricity from the wind!

HO LID

AY S © Science Upd8 at www.upd8.org.uk

N The question is, how rich can the wind make you? N Find out what's involved and do the sums.

Win with Windgen! N Wind spins Windgen 1.5 kW

Windgen 6 kW

3m 6m

While stocks last!

£2,799

10m

15m

Buy one today! Special price:

£6,999 © Science Upd8 at www.upd8.org.uk

the turbine. The turbine drives a generator. And that's that – you've generated electricity! N No fuel costs,

no pollution! N Make money – sell

the electricity you don't need!

How rich can the wind make You ? When you do the sums:  Keep the first 4000 Units for your family.  That saves paying £300/year for electricity.  You can sell the rest. A Turbine's maximum power in kilowatts (kW)

B Average wind speed in m/s

1.5

12

6

12

1.5

7

6

7

C Average power in kW from graph

D Electricity generated per year, in kWh(Units) (C x 24 x 365 x 0.8)

E 'Surplus' electricity for sale each year, in Units

F Income from sales each year at £0.05/Unit

Because wind only Should your generates power 80% of family invest the time in a turbine? Turbine Power Output

Power output (kW)

6 5

4 TASK 3 2 1 0 0

5

10 15 Wind speed (m/s)

1.5 kW 6 kW

Wind too slow to generate electricity

KS4

How rich can the wind make You ? When you do the sums:  Keep the first 4000 Units for your family.  That saves paying £300/year for electricity.  You can sell the rest. Turbine's maximum power in kilowatts (kW)

Average wind speed in m/s

Electricity generated per year, in kWh (Units)

1.5

12

10,500

6

12

42,000

1.5

7

6,000

6

7

12,500

Very windy indeed

'Surplus' electricity for sale each year, in Units

Income from sales each year at £0.05/Unit

Windy

Should your family invest in a turbine?

KS3 © Science Upd8 at www.upd8.org.uk

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