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Solar PV / Micro-generation Connection Certificate

The Irish Solar PV / Micro-generation Connection Certificate records the interface protection settings and commissioning tests for a grid-connected solar PV or other micro-generation installation under I.S. EN 50549-1, supporting the ESB Networks Micro-Generation Protection Settings Confirmation Certificate (NC6-01-R6). It confirms MPRN, generator/inverter details, the prescribed ESB Table 3 protection settings, and PV-specific commissioning tests under I.S. EN 62446-1.

I.S. EN 50549-1 (LV network connection requirements for generating plants), I.S. 10101 Rule 712.6.101, I.S. EN 62446-1, ESB Networks "Conditions Governing the Connection and Operation of Micro-Generation" (DTIS-230206-BRL)Valid: No fixed expiry — attached to the installation and grid connection

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Sample Solar/Micro-gen Connection certificate

Sample Solar PV / Micro-generation Connection Certificate certificate created with CertBox, showing the professional PDF layout with customer, mprn and site details, generator/inverter manufacturer, model, phase and type test certificate number, pv array details (module, capacity, mounting) where applicable

Sample Solar/Micro-gen Connection with fictional data. All personal details shown are fake.

What it covers

  • Customer, MPRN and site details
  • Generator/inverter manufacturer, model, phase and Type Test Certificate number
  • PV array details (module, capacity, mounting) where applicable
  • ESB Table 3 protection settings (under-voltage, 2-stage over-voltage, under/over frequency, RoCoF, vector shift) with real ESB Networks prescribed values for single and three-phase
  • Commissioning tests: insulation resistance, earth continuity, polarity, functional and isolator tests
  • Installer Safe Electric registration and signature

Who needs a Solar/Micro-gen Connection?

Safe Electric registered solar/renewable installers
Homeowners installing solar PV or micro-generation
Businesses connecting micro-generation to the ESB Networks grid

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Frequently asked questions about Solar/Micro-gen Connection

Does this replace the ESB Networks NC6 form?
No. This certificate is CertBox's own record of the protection settings and commissioning tests, built to support your NC6-01-R6 (Micro-Generation Protection Settings Confirmation Certificate) submission — you must still file your NC6 notification via esbnetworks.ie, together with the completed NC6-01-R6 and type-test certificate.
What are the I.S. EN 50549-1 protection settings?
ESB Networks Table 3 prescribes: under-voltage, a 2-stage over-voltage setting, under-frequency, over-frequency, rate of change of frequency (RoCoF), and vector shift (not permitted). Exact values differ for single-phase and three-phase connections — no deviation is permitted without written ESB Networks permission.
What size solar/micro-generation system can connect without special approval?
Single-phase connections are generally limited to 25A (approx. 6kVA); three-phase to 16A per phase (approx. 11kVA). Larger systems fall under ESB Networks' mini-generation or full generator connection processes instead.

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