Publications

CRU has approved Modification No. 49 of the Distribution Code, which incorporates a number of housekeeping corrections/clarifications to the Distribution Code relating to reactive power.

Effective Date 08/10/2021

CRU has approved Modification No. 48 of the Distribution Code, which incorporates additional content into the Distribution Code to facilitate the Derogation Process requirements of the European Network Code on Demand Connection, Articles 50-55 (EU Commission Regulation (EU) 2016/1388).

Effective Date 08/10/2021

CRU has approved Modification No. 46 of the Distribution Code, which incorporates additional content into the Distribution Code to facilitate requirements of the European Network Code on Demand Connection - Articles 27-30 (EU Commission Regulation (EU) 2016/1388).

Effective Date 17/12/2021

CRU has approved Modification No. 36 of the Distribution Code. The requirements stated under DCC11 are driven largely by the combined effect that large penetration of Non-Synchronous generation on the operation of the Transmission System. To date, this cohort of generation has comprised, almost exclusively of wind generation. It is now apparent that other forms of generation [most notably PV], which have an invertor between the primary source and the Connection Point, present the same technical challenges to System Operation. It is logical therefore that the same technical requirements should apply to them.

This approach is also consistent with that which will be taken upon adoption of the European Network Codes, most notably the Requirements for Generation [RfG], wherein the document structure is divided between Synchronous Generators and what are termed Power Park Modules.

Separately, the total quantum of generation connecting to the system has reached levels at which the quantum of un-controlled real power from distribution connected generation poses a threat to the stability of the power system. For that reason and for the reasons stated above with regard to the increase in solar generation connections, EirGrid deem necessary to make more of the PPM fleet MW controllable.

Modification No 38 Safety Procedures

Effective Date 23/02/2016

Modification No. 39 - Safety Procedures

Effective Date 23/02/2016

Modification No. 31 - WFPS Fault Ride Through.

Effective Date 23/02/2015