Off-grid systems, and mini-grids in particular, are expected to play a significant role in improving electricity access to one billion people until 2040. One of the major challenges for mini-grids is associated with their high costs, low financial viability and local development impact. Productive use of electricity can be an important driver of local development and impacts the total load in a mini-grid. By using a mixture of high-resolution (minutes) measurements and long-term data (years) on electricity expenditures and purchased electricity from a mini-grid in the Tanzanian highlands, we analyse the technical and economic impact from household and productive use of electricity, respectively. The high-resolution data is analysed using performance indicators and the long-term data using regression tools. We find that a mixture of household use and productive use of electricity provides both technical and economic benefits for the operator. In addition, we find that while productive use customers only represent 25% of the customers, they generate 44% of the operator's income. Furthermore, productive use of electricity customers are also likely responsible for the peak demand in the mini-grid, which occurs during day time. Lastly, we find empirical evidence suggesting that expenditures and demand are unit elastic, which has implications on economic policies for supporting rural electrification.

到2040年，离网系统，尤其是微型电网，有望在改善10亿人口的电力供应方面发挥重要作用。微型电网的主要挑战之一是其成本高，财务可行性低和对当地发展的影响。生产用电可能是当地发展的重要动力，并会影响小电网的总负荷。通过使用高分辨率（分钟）测量结果和长期电费数据（年），以及坦桑尼亚高地小电网的购电，我们可以分析家庭用电和生产性用电的技术和经济影响。 ， 分别。使用性能指标分析高分辨率数据，并使用回归工具分析长期数据。我们发现，家庭使用和生产性使用电力的混合为运营商提供了技术和经济利益。此外，我们发现，虽然生产性使用的客户仅占客户的25％，但他们却创造了运营商收入的44％。此外，电力用户的生产性使用也可能是导致白天白天微型电网高峰需求的原因。最后，我们发现经验证据表明支出和需求是单位弹性的，这对支持农村电气化的经济政策产生了影响。电力用户的生产性使用也可能是导致白天白天迷你电网的高峰需求的原因。最后，我们发现经验证据表明支出和需求是单位弹性的，这对支持农村电气化的经济政策产生了影响。电力用户的生产性使用也可能是导致白天白天迷你电网的高峰需求的原因。最后，我们发现经验证据表明支出和需求是单位弹性的，这对支持农村电气化的经济政策产生了影响。