Retrospective Micro-Generation Registration Process

After January 28th, 2022, EN 50549 units required that the protection settings prescribed in Table 1 at the bottom of this page "Protection settings for post -28/1/2022 EN 50549 Microgeneration Installations" were set at the customer's premises on the unit installed.  To verify that the settings on your unit conform to the required standard at the time of installation we require your original installer or a Safe Electric Contractor you engage, to provide the following details and to sign section 5B of the NC6 Notification Form.

• Serial Number 
• Model Number 
• Manufacturers Name 
• Copy of Type Test Cert and Reference Number (this should be available from Installer or from Manufacturer) 
• Confirmation that installation was wired in compliance with applicable NSAI Wiring Regulations by Safe Electric Installer 
• Protection Settings applicable to EN50549 units installed after January 28th 2022 are shown in Table 1 below.

Following receipt of an acceptable NC6 Application, we will be in a position to register your MEC as of the date of receipt.

Prior to January 28th, 2022, EN 50549 units required that the protection settings prescribed in Table 2 below and provided in the latest standard on micro-generators (esbnetworks.ie) were set at the customer’s premises on the unit installed.  To verify that the settings on your unit conform to the required standard at the time of installation we require your original installer or a Safe Electric Contractor you engage, to provide the following details and to sign section 5B of the NC6 Notification Form PDF | 135 KB.

• Serial Number 
• Model Number 
• Manufacturers Name 
• Copy of Type Test Cert and Reference Number (this should be available from Installer or from Manufacturer) 
• Confirmation that installation was wired in compliance with applicable NSAI Wiring Regulations by Safe Electric Installer 
• Protection Settings applicable to pre-28/1/22 EN50438 and EN50549 Installations are shown in Table 2 below. 

Following receipt of an acceptable NC6 Application, we will be in a position to register your MEC as of the date of receipt. 

Prior to January 28th 2022, EN 50438 units required that the protection settings prescribed in Table 2 below - "Protection Settings for Pre 28/1/2022 EN 50438 and EN50549 Microgeneration Installations" were installed at the factory.  To verify that the settings on your unit conform to the required standard at the time of installation, we require your original installer or a Safe Electric Contractor you engage, to provide the following details and to sign section 5C on the NC6 Notification Form PDF | 135 KB.

• Serial Number 
• Model Number 
• Manufacturers Name 
• Copy of Type Test Cert and Reference Number. ( this should be available from Installer or from Manufacturer) 
• Confirmation that installation was wired in compliance with applicable NSAI  Regulations by Safe Electric Installer 
• Protection Settings applicable to pre-28/1/22 EN50438 and EN50549 Installations are shown in Table 2 below. 

Following receipt of an acceptable NC6 Notification Form PDF | 135 KB, we will be in a position to register your MEC as of the date of receipt.

(*) For relays that have settings step of 0.1 Hz then the frequency should be set to 52.1 Hz and 46.9 Hz receptively.

(**) reset interval should be set to >

Important Note:

* No deviations from the protection settings in the above Table shall be allowed without permission in writing from ESB Networks.

*If a deviation exists, please provide correspondence from ESB Networks confirming acceptance of this deviation to networkservicesbureau@esb.ie

Details of the Generator interface protection settings installed are as per those applicable in the  Conditions Governing the Connection and Operation of Micro-generation policy | 518KB (DTIS -23-206-BRL) current at date of application, and the actual settings installed on the Micro-Generator are as listed above. 

(*) For relays that have a setting step of 0.1Hz then the frequency should be set to 52.1 Hz and 46.9 Hz respectively.

(**) reset interval should be set to >0.6 seconds to detect step changes.

*** An explicit Loss of Mains functionality must be included. Established methods such as, but not limited to, Rate of Change of Frequency (ROCOF), Vector Shift or Source Impedance Measurement may be used. Where Source Impedance is measured, this must be achieved by purely passive means. Any implementation which involves the injection of pulses onto the DSO network, shall not be permitted.