An approach to rural distribution network design for sub-Saharan Africa

Sebitosi, A.B.; Pillay, Pragasen; Khan, Azeem

doi:10.1016/j.enconman.2005.07.008

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…For the rural electrification scenarios, we estimate demand based on changes in population, income and access over time (see SI). Electricity infrastructure expands in the models using a generalized grid design and population density information on 0.5 • ×0.5 • grid cells, using technology that is commonly used for rural electrification, described in [24,27]. Both models estimate the amount by which generation and grid capacity would need to expand in order to meet the increased demand from the rural sector for a universal access target to be achieved by 2030.…”

Section: Methodsmentioning

confidence: 99%

Pathways to achieve universal household access to modern energy by 2030

Pachauri

Ruijven

Nagai

et al. 2013

Environ. Res. Lett.

137

121

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A lack of access to modern energy impacts health and welfare and impedes development for billions of people. Growing concern about these impacts has mobilized the international community to set new targets for universal modern energy access. However, analyses exploring pathways to achieve these targets and quantifying the potential costs and benefits are limited. Here, we use two modelling frameworks to analyse investments and consequences of achieving total rural electrification and universal access to clean-combusting cooking fuels and stoves by 2030. Our analysis indicates that these targets can be achieved with additional investment of US$ 2005 65-86 billion per year until 2030 combined with dedicated policies. Only a combination of policies that lowers costs for modern cooking fuels and stoves, along with more rapid electrification, can enable the realization of these goals. Our results demonstrate the critical importance of accounting for varying demands and affordability across heterogeneous household groups in both analysis and policy setting. While the investments required are significant, improved access to modern cooking fuels alone can avert between 0.6 and 1.8 million premature deaths annually in 2030 and enhance wellbeing substantially.

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Section: Methodsmentioning

confidence: 99%

Pathways to achieve universal household access to modern energy by 2030

Pachauri

Ruijven

Nagai

et al. 2013

Environ. Res. Lett.

137

121

View full text Add to dashboard Cite

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“…The model is based on a simple tree-like structure ( Fig. 1) to determine the length of power lines in a grid cell (based on [33,42]). Below we briefly describe the main assumptions made in the model.…”

Section: Investment Modelmentioning

confidence: 99%

“…From this, we can calculate the unit line length for LV network, u (see the left graph of Fig. 1 for the meaning of u in the optimal network design of Sebitosi et al [33] For the medium voltage network, the actual reach (or length) of a SWER line is approximated by assuming that the grid cell is square shaped and each Low Voltage (LV) network covers a square shaped area as well (see Fig. 1, middle and right graphs).…”

Section: Investment Modelmentioning

confidence: 99%

Model-based scenarios for rural electrification in developing countries

Ruijven

schers

Vuuren

2012

Energy

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Promoting access to modern energy forms in developing countries to replace traditional fuels is high on the political agenda. This paper describes the development and application of a global model for rural electrification. The model is used to assess future trends in electrification, and the associated investment needs. The model is applied for a set of electrification scenarios. We find that the trend in increasing electrification differs considerably among world regions: in Latin America and Asia access to electricity takes place at lower income levels than in Africa. Under business-as-usual developments, universal access to electricity is not reached by 2030 in Latin America, Asia or sub-Saharan Africa. Investments per household depend strongly on population density, implying relatively low costs in most Asian subregions. Global cumulative investments to reach universal access to electricity by 2030 amount 477e868 billion USD 2005 , which would be 238e400 billion additional to business-as-usual (or 12e20 billion USD 2005 per year). The potential for mini-grid and off-grid technologies is expected to be high in Latin America and sub-Saharan Africa, and lower in Asia. This is a result of high costs of grid electrification at low population densities in large parts of rural Africa and Latin America.

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“…A solar PV system as depicted in Figure 3 is a synergy of individual components which includes solar panels, charge controller, battery (power storage), charge controller, inverter and power transmission cables, as well as electrical loads (appliances) (Ali et al, 2019). There are various ways in which to connect the components to supply the consumers/loads; this is referred to as network topology (Sebitosi et al, 2006). Illustrated in Figure 4 are the variable ways of connection that reflect the flexibility of setting up the network depending on the geography of the settlement, need to separate out loads of different priority, the resources, or the anticipated operation model (Bhattacharyya and Palit, 2014).…”

Section: Typical Setup Of a Solar Photovoltaics Microgridmentioning

confidence: 99%

Review of Operation and Maintenance Methodologies for Solar Photovoltaic Microgrids

2021

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Global concerns and growth in electricity demand, especially for rural and remote settlements, has forced governments, scientists, engineers, and researchers to look for alternative solutions in the form of renewable energy sources. High global growth in solar energy technology applications has added more weight in operations and maintenance (O&M) of solar-photovoltaic (SPV) systems. SPV reliability and optimized system performance are key to ensuring success and continual adaptation of SPV technology. O&M plays a central role in ensuring sustainability and long-term availability throughout the operational lifetime of the elements of SPV systems whilst boosting confidence of ultimate consumers in solar energy. While appreciating that SPV installations intrinsically require minimal maintenance actions, the objective of this manuscript is hence to reaffirm the significance of O&M scheduling in SPV systems by reviewing the O&M approaches in SPV microgrid systems. Further discussions focus on the various maintenance strategies employed in the field with special emphasis on corrective, preventive, and predictive maintenance strategies. Because of the variation in the design and development procedures of SPV systems, there is lack of clear steps followed in the development of an O&M program for SPV systems and the evaluation of its performance. This manuscript serves to address this through a model for developing an O&M program and portrays the key elements for its success, including a management and execution approach for improved risk-return balance and savings from the O&M expenditure. Eventually, the three models of executing an O&M program (i.e., in-house O&M team, third party contract, or installation company) are analyzed.

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An approach to rural distribution network design for sub-Saharan Africa

Cited by 8 publications

References 9 publications

Pathways to achieve universal household access to modern energy by 2030

Pathways to achieve universal household access to modern energy by 2030

Model-based scenarios for rural electrification in developing countries

Review of Operation and Maintenance Methodologies for Solar Photovoltaic Microgrids

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