Connecting Synchronised Generators larger than 6kW single phase or 11kW three phase.
This section explains how to connect generators larger than 6kW single phase or 11kW three phase that may be exporting electricity to the Electricity Network for sale or supply.
Note: for connections made after September 2018 some Distribution Code conditions may change, arising from the need to be aligned with European Network Codes. For more information on this see our European Network Codes page.
Enduring Connection Policy Stage 1 (ECP-1)
ESB Networks is currently processing grid connection offers under ECP1 Batch Process and is no longer accepting generator applications for MECs >0.5MW. ECP-2 will be open to all generating and storage technologies towards the end of 2020 when ECP-1 is complete and will be implemented subject to the CRU’s final decision. For further information on ECP-2 please refer to the CRU website here.
ECP-1 is the new process for grid connections open to all generating and/or storage technologies. Please refer to the CRU website: Enduring Connection Policy Stage 1 (ECP-1) for further information on this including the CRU direction and rulesets.
The revised Generator Application Forms (NC5) PDF | 574KB and (NC5A) PDF | 515 KB are available for download from the ESB Networks website for applications of < 0.5MW, Generator applications for projects > 0.5MW will not be accepted until the ECP2 application window opens which is subject to CRU’s final decision, please refer to CRU website.
Step 2 - Complete an Application Form
Generator application forms have now been updated in line with Enduring
Connection Policy Stage 1, CRU/18/058. To apply for the 2018 Batch of ECP-1
please complete the appropriate ECP-1 application form:
Existing applicants that received deemed complete status may
apply to be considered for the 2018 batch of ECP-1 while retaining
their received complete date and without requiring payment of a new initial
application fee deposit / application fee (where MEC ≤ 0.5MW). For
information around what details/information can be amended/updated from the
original application form, please click here
your request is possibly eligible for processing as non-batch (for eligibility criteria please see CRU/18/058 and associated rulesets) please complete the
appropriate ECP-1 application form:
Enduring Connection Policy
(ECP-1) Decision - Capacity Relocation
In line with
the CRU Decision Paper – Enduring Connection Policy Stage 1 (ECP-1) CRU/18/058 existing contracted generation applicants
are eligible to submit a request to ESB Networks to relocate capacity to a
site with planning permission. The deadline for applications for capacity
relocation is close of business Friday,
29th June 2018. Any other capacity relocation shall
only be permitted in accordance with CRU/18/058 which limits relocations to
100m of the original site boundary. Modification requests can be submitted
to ESB Networks by completing a Supplemental Application for Modifications Form ( PDF | 374 KB), the appropriate application form (NC5 /
NC5A) and paying the appropriate fee.
Enduring Connection Policy (ECP-1) - Change in Generation Type (COPP rules)
As per the
CRU decision on ECP-1, the accompanying ruleset, CRU/18/059, details the changes that have
been made to the Connection Offer Policy and Process (COPP) paper. In order to
effectively implement these changes the System Operators (SOs) have clarified
their interpretation of the new rules, in particular how it is envisaged
that Chapter 9 will work in practice. This
interpretation follows the COPP principle that “where the policies do not
directly translate to a case in point, the principles established will be
interpreted by the SOs”. In addition, Section 9 ‘Change in Generation
Type’ of COPP also states that “Changes
in generation technology will generally only be processed as per a new
application and be subject to the processing rules that pertain to a new
application appropriate to the change in generation technology sought.”
While this requirement is only specifically stated in the pre-energisation
section it has been implemented for all changes in generation types. The processing rules that now pertain to all
technologies (with only limited exceptions) is that planning
permission is a requirement. For the avoidance of doubt, the
SOs shall implement as follows:
For all applications:
request for change in generation type, regardless of technology type, will be
assessed on a case by case basis per the rules in Chapter 9 in COPP as amended
by CRU’s ECP-1 Decision. Originally appendix 4 of COPP was intended as a guide
for interpreting the rules in Chapter 9. However, given the changes in ECP-1 it
is now dated and no longer necessarily relevant. A new guidance document will
be processed in the next review of COPP.
with the build-ready principles espoused in the CRU ECP decision; any change in
generation type shall be subject to the same planning permission requirements
as set out in CRU/18/058 and CRU/18/059.
For applications prior to
directed. these rules will apply to all contracted projects except for
applications made under ECP-1 in conjunction with the clarifications for all
rules set out in section 9.2.2 of COPP still apply with the following
there is a change from being renewable to non‐renewable or vice versa the party
has gained no material advantage over other similar applications based on the
original application” – Given that the ECP-1 2018 batch is technology
neutral the SOs are satisfied that this clause no longer applies.
For applications post energisation:
directed, these rules will apply to all post energisation projects in
conjunction with the clarifications for all applications above.
rules set out in section 9.3.2 of COPP still apply with the following
would be given 2 years notice as to when a transfer of rights is scheduled by a
customer to take place.” – All applications made post energisation must be
in accordance with the relevant rules set out in the Generation Plant Closure
Process. This shall apply even if only part of the MEC is being transferred to
another technology type. One aspect of this ruleset is the period of
notification that must be given in advance of plant closure i.e. as per Grid
Code requirements, generators greater than 50MW – at least three years notice,
generators less than 50MW – at least two years notice.
For further amendments to COPP,
please see the CRU Ruleset, CRU/18/059.
For any other ECP-1 queries not covered on our website please refer to CRU/18/058 and the associated rulesets. For any other query please email DSOgenerators@esb.ie.