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A region-adaptive hierarchical framework for realizing Sustainable Development Goal 7.3 is proposed in this paper, using Nigeria as a case study for strategy adoption and adaptation. In 2013, the Economic Community of West African States (ECOWAS) rolled out strategic plans to phase out incandescent lamps by 2020, as a critical component essential to realizing the SDG 7 by 2030. However, at the expiration of the 2020 deadline, this ambition has not materialized. Current regulatory indicators for sustainable energy shared by the World Bank and the International Energy Agency (IEA) indicated poor-to-average performances among member states, which suggests the need to adopt ingenious strategies to increase electricity access and accelerate energy efficiency by 2030. In this paper, we systematically reviewed literatures on past campaigns in ECOWAS member states and inferentially call for a revisit of the campaign to phase out incandescent bulbs as a critical component for achieving energy efficiency. The paper also pinpoints some domain factors that are militating against the realization of SDG 7 in Nigeria. We proposed an all-inclusive top-down hierarchical framework which involve all relevant stakeholders (national, state and local governments, delineated wards in local governments, street representatives and household heads), civil society organizations, and educational institutions, for convergence, efficient collaboration, synergy and achievement of goals. [ABSTRACT FROM AUTHOR]

The majority of the street lighting systems in Nigeria are predominantly composed of inefficient lighting fixtures powered either by the grid or diesel generators. Due to the epileptic nature of the grid and the fluctuations in diesel fuel pump prices, these methods for powering street lights are neither reliable nor sustainable. Use of energy-efficient lamps and photovoltaic (PV) panels has the tendency to reduce energy consumption and emissions. This study therefore presents a techno-economic analysis of deploying energy-efficient PV-powered street lighting systems using simple economic metrics. Environmental benefits of the proposed systems were also assessed by analyzing the reduction in CO2 emission as well as the equivalent of oil saved. Relative to the existing grid-powered metal halide system, installation of LED PV-powered street light reduced energy consumption by at least 80%, while the grid-powered LED configuration reduced energy consumption by 80%. Economic analysis shows that the simple payback period (SPP) for the LED PV-powered technology was less than three years, while that of the grid-powered LED system was less than two years. The LED PV-powered technology had the highest CO2 emission reduction of approximately 225 tonnes annually. Overall, street lighting using PV-powered and grid-powered LED is economically viable considering the payback time, net present value (NPV) and lifetime. [ABSTRACT FROM AUTHOR]

The current study revisits the dynamic causality in energy production and real output growth in Nigeria. The imperative of energy production in stimulating output growth is generally well documented and appreciated. Thus, the significance of energy as a driving force for economic growth and development is undisputed. The current study adopts the Autoregressive Distributed Lag (ARDL) bounds test methodology developed by Pesaran et al. (2001) with the modified Granger causality test within the framework of an Unrestricted Vector Autoregressive model. Estimation covers the recent time period between 1971 and 2013. The results show the absence of long-run cointergration relationship in the model. The modified causality test validates the neutral hypothesis for Nigeria. Hence, Nigeria can commit to sustainable energy conservation with emphasis on energy efficiency without hurting the real output growth in the country. [ABSTRACT FROM PUBLISHER]