Connect a Micro-Generator
Micro-Generator is a source of electrical energy which operates in parallel with ESB Networks LV System and rated up to and including:
- 25 amperes (6kW) at low voltage [230 volts] when the connection is single phase
- 16 amperes(11kW) at low voltage [230/400 volt] when the connection is three-phase
- To familiarise yourself with the process, please read the associated notes 1, 2 & 3 below before reading the document Conditions Governing the Connection & Operation of Micro Generation Policy | PDF 111 KB. Also see Step by Step Guide at the end of this page.
Note 1: Text in Section 2.2 should now read "Table 1 below displays the specific Irish Settings ". Protection settings as per I.S. EN50438:2013 are not acceptable. New settings were issued in the Oct 2018 edition of Conditions Governing the Connection and Operation of Micro-Generation.
Note 2: I.S. EN50438: 2103 has now been withdrawn by CENELEC and replacement standard is now EN 50549-1:2019/AC:2019-04 for which test certificates for inverters should be provided.
Note 3: The current 'Conditions Governing the Connection & Operation of Microgenereation' DOC-230206-BRL is being revised and a new version will be issued in the latter half of 2021.
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.
European Network Codes
Types of Micro-Generators
The following are examples of different types of Micro-Generators:
- Wind-power (Turbines)
- Solar-power (PV panels)
- Small hydroelectric schemes
- Micro combined-heat-and-power (CHP)
- Combined renewable Micro Generator and storage systems