Estimating the impact of a residential microgrid on distribution transformer

Due to the increment of electricity load, aged electric infrastructure, and a competitive environment, state-of-the-art solutions are essential by electrical system operators to increase the exploitation of network assets such as transformer that is cost-intensive. Transformers are usually a costly asset in a distribution network. Their high operation efficiency is significant with the purpose of receiving a reasonable return on investment (ROI) and delay future investment. A microgrid can reduce the loading of the transformer., which implies a reduction of winding temperature and core losses and, subsequently, increases the lifespan of the transformer. In this preliminary study, it has been demonstrated that residential microgrid can reduce the time of transformer loading and increase the life of the transformer.