What is Grid-Tied System?
A solar system connected to the electricity grid, allowing import of power when needed and export of surplus.
Quick Answer
Almost all residential solar installations in Ireland are grid-tied. The system connects to the ESB Networks grid via your existing electricity supply. Grid-tied systems benefit from export payments under the Microgeneration Support Scheme. Off-grid systems are rare in Ireland and only found in very remote locations.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Grid-Tied System Explained
A grid-tied (or grid-connected) solar system is connected to the local electricity grid. When solar production exceeds household demand, surplus electricity is exported to the grid for payment. When demand exceeds production (at night or on cloudy days), electricity is imported from the grid normally. Grid-tied systems are the most common type of residential solar installation. They do not provide power during grid outages due to anti-islanding protection.
How Does Grid-Tied System Work in Ireland?
Almost all residential solar installations in Ireland are grid-tied. The system connects to the ESB Networks grid via your existing electricity supply. Grid-tied systems benefit from export payments under the Microgeneration Support Scheme. Off-grid systems are rare in Ireland and only found in very remote locations.
Frequently Asked Questions
Can I go off-grid with solar in Ireland?
Technically possible but impractical and expensive for most homes. You would need a very large battery bank to cover winter shortfalls. Grid-tied with export payments is far more cost-effective.
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John Rooney is the founder of Solar Info and has been covering the Irish solar energy market since 2023. He fact-checks all content against official SEAI data and maintains relationships with SEAI-registered installers across Ireland.