Commission Regulation (EU) 2015/631 of April 14, 2016 established a network code on the requirements for connecting generating units to the network (Network Code Requirements for Generators, abbreviated as NC RfG). The code was to enter into force on April 27, 2019, after a three-year transition period, but during this time, accredited certification bodies that meet the national guidelines for certification programs have not been successfully established, so the date of its application has been postponed to the end of July 2021.

Therefore, on August 1, 2021, the transitional period officially ended, and thus the process of connecting power generating modules to the electricity grid cannot be carried out on the basis of the declaration of compliance. From now on, certificates for compliance with the requirements of NC RfG (regardless of the adopted certification program) or certificates for compliance with PN –EN 50549-1 and / or PN –EN 50549-2 should be used – in both cases only together with a document confirming accession to the process of obtaining a certificate, in accordance with the contract concluded with the certification body. These documents can be submitted until April 30, 2022.

After this date, the absolute requirement to use the certificates specified in the NC RfG will apply. The equipment certificate must confirm compliance with the NC RfG requirements and the General Use Requirements, i.e. a document developed on the basis of the NC RfG and approved by the President of the ERO. Before issuing the equipment certificate, tests should be carried out on the basis of a certification program consistent with the Polish document “Conditions and procedures for the use of certificates in the process of connecting power generating modules to electricity networks”. The described elements must be confirmed by an accreditation body in the process of obtaining accreditation.

Certificates issued by foreign units are also acceptable, as long as they meet the above-mentioned conditions.

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