The Electric Markets Research Foundation (EMRF) released preliminary results on December 2 of a research study on The Sustainability of Net Metering, indicating that the value of solar diminishes as more rooftop solar is added to the grid – and that the costs of net metering to customers without rooftop solar become so significant over time that it is not a sustainable policy.
“A uniform net metering tariff is generally unlikely to be appropriate at high… rooftop solar photovoltaic penetrations, due to its diminishing value to the electricity system,” the researchers posited.
