As an ewz customer, fuel mix disclosure complete transparency and comparability: you know from which sources in Germany and abroad the electricity mix you purchased in the previous year came from and what proportions the different energy sources have in the certificate of origin system. Fuel mix disclosure is based on the full declaration obligation that has been in force since 2018, according to which the origin of each kilowatt-hour consumed in Switzerland must be declared. However, all energy supply companies have been obliged to inform their end customers about the supplied electricity mix since 2006.>
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