image: This photo was taken during an interview in a low-income household, which shows one of several broken light-bulbs found in the home. Almost every household interviewed declared a broken appliance -- from smaller devices, such as lightbulbs and fans, to larger ones, such as refrigerators and washers. view more
Credit: Image courtesy of Veronica Jacome.
科研人员通过对151户家庭的调查、62个开放式的调查，以及用电压测量的方式监测坦桑尼亚Unguja岛上的电网，从而研究了这个岛的电力服务质量，结果发现接入电网的家庭的电压质量显著变化，以至于极端的电力涨落导致了灯太暗无法使用以及电器损坏和停电，这提示低收入的Unguja居民没能获得现代能源服务的收益。
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Journal
Proceedings of the National Academy of Sciences