Customer and grid impacts of solar, storage and cost reflective tariffs

The business environment of distribution networks is changing rapidly. Electricity price rises and technology advances, particularly in distributed energy resources such as solar PV and battery storage, mean that customers have new choices for their energy supply. Adoption of these new technologies, together with more efficient appliances, is leading to changing network utilisation which can contribute to rising electricity prices. Electricity tariffs that are not cost reflective, are also contributing to market distortions. This paper describes the results from an application of cost reflective tariffs with customers that have distributed energy resources within a single Ergon Energy low voltage network.