Navid Shirzadi (IMAGE) Concordia University Caption Navid Shirzadi: “The stochastic behaviour of renewables and their fluctuations make designing and operating a microgrid very challenging." Credit Navid Shirzadi Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.