Access to modern energy services including electricity is fundamental to fulfilling basic social needs, driving economic growth and fueling human development, hence, the pathway out of poverty to prosperity. This study examined the impact of income level, inequality in the distribution of income and the control of corruption on access to electricity from 1990-2017 in South Africa, using Bayesian and nonlinear autoregressive distributed lag (NARDL) estimation approach. The long-run asymmetric effects of income level reveal a positive impact on electricity access, thus, validating the initial positive symmetric effect. While income inequality has positive effect on accessibility, corruption appears to hinder the roadmap towards achieving energy for all. Even though economic development is crucial to materialize access to electricity, yet, efficient and effective financing and investment climate alone are not enough to warrant energy security, but, right policies, good governance and institutional quality.

获得包括电力在内的现代能源服务，对于满足基本的社会需求，推动经济增长和推动人类发展至关重要，因此，这是从贫困走向繁荣的途径。这项研究使用贝叶斯和非线性自回归分布滞后（NARDL）估算方法，研究了1990年至2017年南非的收入水平，收入分配中的不平等以及腐败控制对电力供应的影响。收入水平的长期不对称效应显示出对电力供应的积极影响，因此，验证了最初的正对称效应。尽管收入不平等对可及性产生积极影响，但腐败似乎阻碍了实现人人享有能源的路线图。尽管经济发展对于实现电力供应至关重要，