Energy consumers can invest in photovoltaic (PV) panels and become prosumers. The benefit of such an investment depends on the regulatory framework. We consider a population of heterogeneous consumers, with respect to both the cost of decentralized production and their degree of self-consumption.it is efficient to have investment by low-cost and high self-consumption profiles. We determine the optimal tariff in the presence of heterogeneous prosumers. Net metering fails to screen consumers on the self-consumption dimension. Net purchasing can lead to the efficient investment if the tariffs are non-Coasian that is fixed fees exceed the grid operator’s fixed costs.

能源消费者可以投资光伏（PV）面板并成为专业生产者。此类投资的收益取决于监管框架。就分散生产的成本和他们的自我消费程度而言，我们考虑了一个异构消费者群体。通过低成本和高自我消费模式进行投资是有效的。我们确定存在异构生产者时的最优关税。净计量无法在自我消费维度上筛选消费者。如果电费是固定费用超过电网运营商的固定成本的非科阿西亚电价，那么净购买可以带来有效的投资。