The gas storage deposit in Minerbio is one of the most important storage site not only in Italy, but also in Europe. Since gas is stored at high pressure, it is always controlled twenty four hours. From the site, thanks to a pipeline system, gas is, then, transported into the plant where is it used to produce electricity. The gas storage site in Minerbio is also called depleted site because decades ago there was natural gas in the same place where now gas is fed and extracted. As a result, the introduction of gas now returns it to its original function.