A sketch map of Nigeria showing kainji dam, Lake Chad, and Ibadan

(b) Factors that impede the development of solar in energy in Nigeria:
- Inadequate technical manpower
- Capital intensive
- Lack of proper government policy
- High cost of production
- Poor maintenance culture
- Inadequate awareness
- Over-reliance on importation of components.
- Unreliability of solar radiation.
- Insufficient/high cost of spare parts.
- Competition with other Sources of power.
- Vandalization/theft.
- Conservative attitude to change.
- Fear of toxic chemicals in cells manufactured.
-Low level of technology
- Difficulty in acquiring land for a solar farm.
(c) Problems created by the construction of Kainji Dam in Nigeria:
- Loss of pasturable land
- Loss of cultivatable land
- Flooding
- Increased evaporation
- Problem of reinforcement against the collapse of the dam.
- Silting
- Displacement of people.
- Deforestation
- Spread of water-borne diseases
- Displacement of wildlife.
- Disruption of river transportation
- Uncoordinated use of the river/dam create conflicts.
- Disruption of traditional occupation. e.g Fishing at the lower part of the river.