Classified as UN 3536 dangerous goods under transportation regulations, their export requires strict adherence to shipping rules. This is to ensure a high quality in the delivery of electricity to all customers. Facilities with electric energy storage (including hybrid facilities) must. . incarnations of energy technologies. . Commission Regulation (EU) 2016/631 of 14 April 2016 establishing a network code on requirements for grid connection of generators The RfG requirements apply to all new generation facilities >0. They also apply when significant changes are made to category C and D facilities. The document provides a review of these guidelines, with a particular emphasis on Denmark's guideline, developed by the Danish Emergency. . The Danish Energy Agency is responsible for ensuring a secure and green energy supply — affordable and shared by all. Power generating plants must comply with the. .