Because of the decreased need for investments in new power lines, transformers and so on, untouched nature is saved. What makes distributed control possible, is the possibility of sending signals to the electrical but not necessary equipment of the customers, for example water heaters or ovens. The communication may go by radio signal or direct via the power line. SF 6 gas taxes Not only technological progress has taken place since year 2000. Also a more strict legislation has emerged.
Environmental concerns force higher taxes of pollutants.
Especially taxes on SF 6 gas are very high. This means a renaissance of SF 6 -free switchgear. A step backwards, some would say, but this is a great step forward for the environment. Of course, this means big expenses on location sites required for these enormous switchgears. When low volume is critical, SF 6 is still used, although at a very high cost. 5.