As the adoption of the Internet of Things increases, cities are becoming smarter. For the past decade, gas distribution
companies are also focusing on adopting smart city concepts such as smart metering. In the eve of transforming into
a smart gas grid, IGDAS – the gas distribution utility company for a city of 15 million residents (Istanbul), needed a
literature review for analyzing the latest smart grid concepts. A systematic review was carried out on leading research
databases. After applying the inclusion and exclusion criteria, 21 papers were selected to be included in the systematic review. Out of those 21 papers, it became obvious that the greener energy era has shaped the research profile drastically toward the adoption of novel methods such as hybrid systems. The focus on cloud computing is on the rise as well as the novel AI methods for solving demand forecasting problems.

Keywords
Smart grid, IoT, smart metering, green energy, gas utility.