2021 Modifications

This modification was proposed as part of a regular Distribution Code document review program, this covered Engineering Recommendations (ERECs) G98 and G99, as well as the Distribution Code document. The consultation document was drafted and released 19th of February and closed 19th of March 2021. The responses where collated and the documents amended to suit.

the report to authority was drafted and approved by the DCRP before submission to Ofgem 22nd July, the modification was then approved 27th August with an agreed publication date of 1st September.

DCRP/21/01/PC - Consultation Pack

DCRP/21/01/PC - Consultation Responses

DCRP/MP/21/01 - RTA Pack

DCRP/MP/21/01 - Decision Letter

EREC G100 covers guidance on customer export limitation devices, with the document being reviewed and a second issue published in early May 2022. EREC G100 now provides guidance on both customer export and Import limitation schemes. By providing maximum export and import limits through thermal, voltage and protection constraints, the current flow across the connection point can be managed to remain within the contracted maximum import and export capacities.

This modification was raised late in 2020 and a working group consisting of DNOs and stakeholders was formed to revise the document. The working group considered the changes required, two rounds of consultation were held to ensure the revised version had taken onboard wider stakeholder views and as a result the final document was prepared for DCRP review in April 2022.

DCRP/MP/21/02 - Terms of Reference

During the revision process 2 public consultations and industry workshops were held. below are the consultation documents for each round.

First Consultation - 11th June 2021

DCRP/MP/21/02 – Consultation Pack

DCRP/MP/21/02 – Consultation Responses

Second Consultation - 8th October 2021

DCRP/MP/21/02 – Consultation Pack

DCRP/MP/21/02 – Consultation Responses

Due to possible changes required as the industry begin to apply the revised G100 document, it was decided by the members of the ITCG to withdraw this modification from DCRP approval, and publish under the authority of ENA’s Electricity Networks Futures Group (ENFG). A copy of Issue 2 amendment 1 was approved for publication and can be downloaded through the link below.

EREC G100 Isse 2 Amendment 1

The modification to Engineering Recommendation P2 is seeking to permit the reduction in the security of supply customers supplied via high voltage feeders supplying demand between 1 and 10MW in a limited number of targeted situations.

This modification has been transferred to DCRP/MP/22/03.

This modification was proposed to provide guidance on the possibility of an open neutral condition on Class I devices. It was prepared by the earthing co-ordination working group and a second amendment to G12 Issue 4 was prepared along with a consultation document that was published 9th April 2021 until 7th May 2021. The working group then collated and assessed the responses before preparing an Report to Authority (RTA) document that was submitted to Ofgem 16th August 2021.’

DCRP/21/04/PC - Consultation Pack

DCRP/21/04/PC - Consultation Responses

DCRP/MP/21/04 - RTA Pack

DCRP/MP/21/04 - RTA Pack v2

DCRP/MP/21/04 - Decision Letter

This modification proposal was approved by the authority and the document was release as part of Distribution Code v48 in January 2022.

This modification was raised to provide DNOs a method of enforcement against non-compliant generators post the completion of NGESO’s Accelerated Loss of Mains Change Program (ALoMCP). It introduces a staged procedure for DNOs and generators to follow before any enforcement action is taken in the event of non-compliant generation connected to the networks.

The text for inclusion in the DCode was prepared by representatives from the DNO companies with experience in generation and was consulted on in August 2021. Feedback was assessed and a final report submitted to the authority in December. This modification was subsequently approved and implemented into version 49 of the Distribution Code of GB, published in March 2022. Copies of the relevant documents can be found below,

DCRP/21/05/PC - Consultation Pack

DCRP/21/05/PC - Consultation Responses

DCRP/21/05/PC - RTA

DCRP/21/05/PC - Decision Letter

This modification to the DCode and associated documents was raised as a reaction to the UK’s decision to leave the European Union. The modification resulted in wording changes within the DCode and terms such as ‘retained in EU law’ being used, as well as new definitions being included in the code in-line with the governments paper ‘EU Withdrawal agreement 2020’.

These changes were drafted, consulted on and proposed through a final report currently awaiting decision by the authority. The changes have been drafted and additionally are fully in-line with similar changes to the Grid Code.

DCRP/21/07/PC - Consultation Pack

DCRP/21/07/PC - RTA

DCRP/21/07/PC - Decision Letter

The process regarding ‘Fast Track’ connections has been revised by the DNOs and originated from stakeholders needs to be able to connect distributed energy resources in domestic scale installations. The limit for fast track connections is proposed to be raised from its current maximum registered capacity of 3.68kW (16 A) per phase, to 7.36 kW (32 A) per phase, provided certain conditions are met.

DCRP/21/08/PC - Consultation Pack

DCRP/21/08/PC - RTA

DCRP/21/08/PC - Decision Letter

Distributed Generation Connection Guides are reviewed and updated on an annual basis, below are the 2021 copies presented to the Distribution Code Review Panel in August 2021 and approved for publication by ENA’s Electricity Networks Futures Group (ENFG). A full set of the guides can be found here.