Electricity data compilation
Electricity is taken account of the the trade statistics since 2002 (see Info electricity[NF1] ).
As of January 1st, 2013 the Swiss Federal Office of Energy (SFOE) is applying a new method to measure border-crossing electricity flows, which is based on net values of electricity imports and exports conducted by electricity traders and no longer on contractual quantities (gross values).
This change results in an annual decrease of trade in the order of 3 to 5 billion Francs, mainly in trade with Germany. Switzerland's other three trade partners in the sector of electricity, France, Italy and Austria, are also affected, though to a lesser degree.
SFOE information circular describing the changes in methodology
Electricity companies are obliged to send data to the Swiss Federal Office of Energy (SFOE) electronically once a month. Thus, the companies do not have to make a declaration for each border crossing.
The electricity data is available three months after the monthly report it corresponds to. Until the actual data is available, the import and export results are estimated (by a short-term forecast provided by the KOF/ETH [Swiss Institute for Business Cycle Research/Swiss Federal Institute of Technology Zurich]).