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close this bookRural Energy and Development: Improving Energy Supply for Two Billion People (WB, 1996, 132 p.)
close this folderChapter four - Options for rural electrification
View the document(introduction...)
View the documentProgress to date
View the documentPricing and financial policies
View the documentCost-effectiveness and the choice of alternatives
View the documentCosts of grid supplies
View the documentReducing initial investment costs by using appropriate design standards
View the documentMicro-grids supplied by diesel generators
View the documentElectricity supplies from renewable energy sources
View the documentRegulatory and price reforms, unbundling, and privatization
View the documentImplication for rural electrification
View the documentApproaches

Micro-grids supplied by diesel generators

Decentralized. isolated distribution systems have been common for several decades in remote population centers, and in most developing countries predate the establishment of grids. For example, such systems were serving numerous villages and towns in northern Ghana before the grid extensions in the 1980s. Box 4.2 on Bolivia provides another example. The costs of such systems typically range from US¢20 to US¢60 per kWh. Table 4.5 provides data for two schemes. each serving fifty consumers, one in Yemen. the other in Pakistan.

Maintenance and high fuel costs have been long-standing problems with diesel generators. The systems are often in remote locations. and the difficulties of purchasing imported spare parts and fuel have often made them unreliable.