Renewable rural electrification: Sustainability assessment of mini-hybrid off-grid technological systems in the African context
Renewable rural electrification: Sustainability assessment of mini-hybrid off-grid technological systems in the African context
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DOI：
10.1016/j.renene.2009.03.028
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发表时间：
2010-01-01
期刊：
影响因子：
8.7
通讯作者：
Rogers, David E.
中科院分区：
文献类型：
--
作者：
Brent, Alan Colin;Rogers, David E.
本文总结的调查对南非矿产和能源部委托的一个农村项目的可再生能源技术系统采用了可持续性评估方法。该项目由风能、太阳能和铅酸电池储能技术组成，作为村庄的小型混合离网电气化系统实施。可持续性评估方法通过使用经济学、社会学、生态系统可持续性、制度治理以及能量转换过程的物理和化学领域的学科专家的学习模型来预测这些干预措施的结果。该项目的成果与南非可持续发展框架的比较表明，具体的村庄可再生离网电气化系统是不可行的。主要原因是农村电网的电力供应成本收费太高，无法获得补贴：可再生能源供应技术的规模经济有利于国家电网。综合系统的失败还可归因于社会制度子系统的复杂性，这导致项目规划者和系统设计者的不确定性，以及技术系统对社会经济和制度子系统的需求缺乏弹性。据此提出与政策有关的建议。2009爱思唯尔有限公司版权所有。
The investigation summarised in this paper applied a sustainability assessment methodology on a renewable energy technological system in a rural village project that was commissioned by the South African Department of Minerals and Energy. The project comprised of wind, solar and lead-acid battery energy storage technologies that were implemented as a mini-hybrid off-grid electrification system for the village. The sustainability assessment methodology predicts the outcomes of such interventions by way of a learning model using discipline experts in the fields of economics, sociology, ecosystem sustainability, institutional governance, and the physics and chemistry of energy conversion processes. The comparison of the project's outcomes with a South African sustainable development framework shows that the specific village renewable off-grid electrification system is not viable. The main reason is that charges for electricity supply costs in village grids are too high for available subsidies: the economies of scale for renewable energy supply technologies favour national grids. The failure of the integrated system may also be attributable to the complexity of the social-institutional sub-system, which resulted in uncertainty for project planners and system designers, and the lack of resilience of the technological system to demands from the socio-economic and institutional sub-systems. Policy-related recommendations are made accordingly. (C) 2009 Elsevier Ltd. All rights reserved.