Act of 30 September 2016 on Energy; Ordinance of 1 November 2017 on Energy; and DETEC Ordinance on the Certificate of Origin and Energy Labelling

Article 9 EnA - Certificate of origin, electricity accounting and labelling
1 The quantity, generation period, energy sources used and system data for electricity shall be certified by a certificate of origin.
2 The certificate of origin shall be usable once only to declare a specific quantity of electricity. The certificate shall be negotiable and transferable, unless it relates to electricity from the feed-in remuneration system in accordance with Chapter 4.
3 Any supplier of end-users shall perform the following tasks:
a. keep account of electricity;
b. inform end-users of the quantity of electricity supplied, the energy sources used and the place of generation (labelling).
4 The electricity accounting shall specify the quantity of electricity supplied, the energy sources used and the place of generation. These data shall be certified in an appropriate form, generally via certificates of origin.
5 The Federal Council may allow exemptions from the marking obligation and the obligation to provide a certificate of origin; it may also provide for a certificate of origin and marking for other fields, especially biogas. Furthermore, it may regulate the methods of financing the costs associated with the system of certification of origin.

Article 4 Energy Ordinance
1 Electricity labelling, by virtue of Article. 9, paragraph 3b EnA, shall be carried out annually by means of certificates of origin per kilowatt-hour supplied to end-consumers. With regard to the railways, the railway companies concerned shall count as end-consumers for electricity labelling.
2 A business subject to the labelling obligation shall carry out the labelling, for all its end-consumers, as follows:
a. for all electricity supplied to all end-consumers (supplier mix); or
b. for each end-consumer only for the electricity which has been supplied to them (product mix).
3 Irrespective of the type of labelling, the business shall publish its supplier mix and the total quantity of electricity supplied to its end-consumers, no later than the end of June of the next calendar year. Publication shall take place in particular via the freely accessible website www.stromkennzeichnung.ch, operated by all businesses subject to the electricity labelling obligation.
4 Any supplier of less than 500 MWh per year to end-consumers is exempt from the obligation to publish the electricity label.
5 The proportion of electricity originating from plant participating in the feed-in remuneration system is evenly distributed among all end-consumers.

Article 8 COELO
1 The electricity label required by Article 9, paragraph 3b EnA shall appear at least once per calendar year on, or annexed to, the electricity invoice and shall include the following information::
a. percentages used per energy source to generate the electricity supplied;
b. percentages of electricity generated in Switzerland and abroad;
c. reference year;
d. name and address of business subject to labelling obligation.
2 A business to which the labelling obligation applies must also inform end-consumers when the electricity bill is sent by a different business.
3 Electricity labelling shall also comply with Annex 1.