The transition to low-carbon systems in Nigeria raises questions about energy security based on the 4As. Energy security not having a universal definition but being defined based on location and situation becomes imperative to analyze as Nigeria plans to achieve her NDC goals of carbon emission and journey towards net zero. This research looks at publicly available literature to analyze the energy security of Nigeria based on availability, affordability, accessibility, and acceptability, presenting the Nigeria energy security of both PRE-NDC and POST-NDC, the literature on related energy securities of other developing countries, the methodology was centered around key indicators for each of the 4A's putting into consideration the NDC target and how it affects the 4A's to improve energy security. The results consider the deviation from business-as-usual to NDC targets by 2030 and net-zero by 2060, looking at subsidy policies, import dependency, energy mix diversity, CO2e, oil price, and energy access statistics as key indicators. The trade-offs that Nigeria would experience in the low-carbon system journey and recommendations on ending the subsidy regime to pave the way for clean energy technology were also recommended. This work is limited to publicly available data in this research study.

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