economic growth in Nigeria between 1971 and 2020. The data set was tested for stationarity, and it was
discovered that they were integrated in a mixed order. All the variables were cointegrated, that is, having a
long-run relationship. The findings revealed that energy supply and other independent variables did not have
any significant short-run impact on economic growth. However, they all carry the correct positive sign. The
findings also showed that there existed a long-run equilibrium relationship, and it is significant.
Based on these findings, it is therefore recommended that since the different electricity supply channels
have a positive relationship with economic growth in the short run and significantly affect economic growth
in the long run, a sound energy policy to boost electricity production both at hydropower source, gas source
and oil source, especially since the country is endowed with crude oil and gas. Furthermore, more
investment at the private and public levels should be encouraged through sound policy to increase
production and supply to stimulate productivity and economic growth in the long run.
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