A report on current technology that may effect Severn Estuary barrage proposals

Appendix C

Energy output from 150 wind turbines rated at 5MW -1.534TW

Parameters;

Air temperature

15°C

Altitude

0 metres

Pressure

1.225652kg/m3

Weibull shape

1.58

Average wind speed

8.97 *

Hub height

66 metres

Roughness class

1

Rating

5,000 kW

Minimum cut out

4m/s

Maximum cut out

25m/s

Rotor diameter

66 metres

Hub height

66 metres

 

m/s

Output (kW)

4

33

5

94

6

178

7

294

8

451

9

655

10

901

11

1169

12

1433

13

2000

14

3000

15

3000

16

4000

17

4500

18

5000

19

5000

20

5000

21

5000

22

5000

23

5000

24

5000

25

5000

 

Calculated using the power calculator at; Windpower.org