Next Stop Ireland: Plug-in Solar Gains Momentum

The international plug-in solar movement continues to gain momentum—and Ireland may soon take a major step toward legalization as well. Irish Energy Minister Darragh O’Brien has publicly expressed his support for approving plug-in solar systems for the first time and has instructed the relevant institutions to prioritize the creation of the regulatory framework required for their safe deployment. The minister specifically highlighted that plug-in PV can serve as an important tool to help households cope with high electricity costs. Ireland’s leading news outlets are already covering the issue extensively.

Ireland’s grid operator (yes, singular), ESBN, also appears to have taken a clear position. The company has now assured the minister of its general support for the safe and proportionate deployment of small plug-in solar and battery systems. Specifically, ESBN has indicated openness toward systems up to 800 watts AC, provided that:

• customer and public safety are ensured and remain the highest priority;
• grid integrity and power quality are maintained under all operating conditions;
• the distribution system operator (DSO) has adequate visibility of connected generation through a simple registration process; and
• devices comply with relevant technical and product standards.

These principles are not new. They essentially mirror the German model: safety and grid compatibility are first clarified through studies. This is followed by the development of more or less clearly defined technical standards, simplified registration procedures, and finally the establishment of legal guardrails. In the end, the conclusion is usually the same: the initially feared problems fail to materialize, while millions of users benefit. This is precisely the development Germany has gone through over the past ten years.

ESBN is also already coordinating with British institutions as well as relevant stakeholders in Northern Ireland in order to develop harmonized rules wherever possible. European guidelines are likewise being incorporated into the process. The European plug-in solar revolution we helped initiate is now finally continuing to grow organically. That is very good news. At the same time, the process will need to be monitored closely, because—as we have already seen in the United States and the United Kingdom—opponents of citizen-led energy transition remain highly active. We will therefore continue to follow developments in Ireland closely as well.