Abeokuta wind energy presentation 31 oct 2012

31 Oct. 2012 June 12 Cultural Centre , Abeokuta, Ogun State

Prof. Layi Fagbenle – 2012 Nigeria Alternative Expo

1

WIND ENERGY FOR POWER GENERATION IN NIGERIA

An Invited Paper by R. ’Layi Fagbenle, FNSEProfessor of Mech. Eng.

Obafemi Awolowo University Ile-Ife



2

Africa’s First Wind Farm

• The 10 MW wind park in Rimi Village in Katsina State is Africa’s first wind farm consisting of 37 wind turbines (HAWT) of the type Vergnet GEV MP C 275 kW.

• Terrawatt Planungsgesellschaft mbH won the RFP for technical consultancy services and construction supervision for the wind power project .

• The project is currently in the installation phase which I saw as I passed through Rimi Village on my way to Katsina in early September for the International Conference on Renewable Energy

Wind pumps and wind electricity pilot projects in Nigeria

• Wind pumps were relatively common in Northern Nigeria in the 1950s and 1960s and these were the multi-vane type windmills as opposed to the 3-bladed wind turbines in Rimi Village.

• Two pilot wind electricity projects in Sokoto State of 5 kWp and 0.75 kWp



3

Wind Resource in Nigeria• According to the Renewable Energy

Master Plan (REMP), Nigeria falls into the poor to moderate wind regime.

• Wind speeds range from1 to 3 m/s in the southern areas to 4 to 5.12 m/s in the extreme north based on NIMET data taken at 10m heights.

• However, wind turbine hub heights can be 50m and higher and hence need for data at such heights is crucial



4

Wind Resource in Nigeria• According to the REMP, studies at 10m

height NIMET data show that exploitable wind energy varying from 8 MWh/yr in Yola to 51 MWh/yr in Jos and as high as 97 MWh/yr in Sokoto.

• Besides the inland winds, Nigeria’s littoral States have to realize the huge potential at their backyards in offshore wind turbine farms. Thus there is also need for data in these sites which have great promise.



5

Wind Research

• Considerable wind energy research has been undertaken and continues to be undertaken in Nigeria, most based on NIMET 10m height anemometers.

• While these can be fitted to boundary layer distributions such as the Weibull distribution, actual data is sorely required at 50 to 80 m heights or even higher.



6

Wind Research

• To conclude this issue of research, mention needs be made of the Laymeyer International work on wind power at 10 sites in Nigeria in about a decade ago for the Federal Min of Science and Tech.



7

Is wind for electricity production

possible in Nigeria or Africa?Going by present statistics, only Egypt,

Kenya, Morocco and South Africa has been able to produce considerable electricity from Renewable sources

Kenya is the leading nation for wind power production in Africa


8Prof. Layi Fagbenle – 2012 Nigeria Alternative Expo

Is opportunity for production of electricity from wind available in Africa?: The case for WEST AFRICA

- It has been recognized through satellite data that West Africa has enormous potential for wind and solar electricity production

- The degree of resources is capable of lighting up the whole sub-Saharan region



Why then is there no local or foreign investment in wind power production?



WIND ENERGY TECHNOLOGY

POTENTIAL RESOURCE ASSESSMENTS

HARDWARE FOR GENERATION

DISTRIBUTION

Stand Alone

Grid Connection

Vertical Axis Wind turbine

Horizontal Axis Wind turbine



- Lack of adequate measurements/complete assessment studies

- Improper wind classification of the countries- No popular wind map of Nigeria, West Africa

or Africa as we have for states in U.S, Countries in Europe etc.

- No predictive models for wind power forecasting



The Need of the present:

• Carry out complete resource assessment using available National data

• Proper classification of wind distribution in Nigeria and identify potential areas for wind farm establishment



Jos as a case study

Range = 0.6 to 15.4 m/s

Range = 7.7 to 10.1 m/s

Range = 6.2 to 11.8 m/s



94.8% data were from 6m/s and above



Up to 80% data ranged from 7.9 to 10.3 m/s

Average values ranged from 7.8 to 11.4 m/s



Range (vmp)= 5.3 to 10.4 m/s; (vemax) = 8.8 to 21.4 m/s



Range = 540.2 to 3677.1 W/m2 m/s

July to September have the least wind power potential



Range of Values relating to important Results at 10 m height for the nation

Zone Vactual σactual Vweibull σweibull k c Vmp VEmax

Estimated Power

North West

1.9 - 10.6

0.5 - 3.4

2.6 - 9.9

0.5 - 4.4

1.4 - 10.1

2.8 - 10.7

1.8 - 10.3

3.3 - 13.6

19.2 - 1424.4

North East

2.4 - 7.3

0.5 - 4.2

2.4 - 8.1

0.6 - 4.2

1.3 - 7.6

2.7 - 9.0

1.0 - 7.1

3.3 - 15.3

28.0 - 1296.7

North Central

2.2 - 10.1

0.4 - 3.7

2.2 - 11.4

0.4 - 7.4

1.4 - 12.0

2.5 - 12.7

1.9 - 10.4

2.8 - 21.4

16.4 - 3677.1

South West

1.2 - 5.8

0.2 - 1.9

1.1 - 5.8

0.3 - 6.3

1.3 - 14.2

1.3 - 6.3

0.4 - 6.2

2.2 - 8.6

3.6 - 320.3

South East

2.7 - 6.7

0.4 - 9.2

2.7 - 6.7

0.5 - 4.3

2.3 - 9.8

2.9 - 7.1

2.9 - 7.0

3.1 - 12.4

23.6 - 593.3

South - South

1.7 - 4.9

0.3 - 1.6

1.7 - 4.9

0.3 - 2.5

1.6 - 10.9

1.8 - 5.1

1.7 - 5.1

1.9 - 7.1

5.2 - 147.9







21

END• Thank you very much for your kind and patient

attention to this presentation

Abeokuta wind energy presentation 31 oct 2012

Documents