What is Grid Connection?
The link between your solar panel system and the national electricity grid, allowing import and export of power.
Quick Answer
In the UK, residential solar systems connect to the local DNO (Distribution Network Operator) grid. Systems up to 3.68kW (single phase) can connect under the G98 notification process. Your MCS-certified installer handles this paperwork. The process typically takes 2–4 weeks. Grid connection notification is free for small domestic systems.
Fact-checked by John Rooney, Solar Energy Editor. Editorial policy
Grid Connection Explained
Grid connection refers to the physical and regulatory link between a solar PV system and the national electricity grid. A grid-connected system allows you to draw electricity from the grid when solar output is insufficient and export surplus generation when output exceeds demand. Grid connection requires approval from the local distribution network operator, compliance with technical standards, and appropriate metering.
How Does Grid Connection Work in the UK?
In the UK, residential solar systems connect to the local DNO (Distribution Network Operator) grid. Systems up to 3.68kW (single phase) can connect under the G98 notification process. Your MCS-certified installer handles this paperwork. The process typically takes 2–4 weeks. Grid connection notification is free for small domestic systems.
Frequently Asked Questions
Is there a fee for grid connection in the UK?
No. Grid connection notification for domestic systems up to 3.68kW (single phase) is free in the UK. Your MCS-certified installer submits the G98 notification to your DNO on your behalf.
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John Rooney is the founder of Solar Info and has been covering the UK solar energy market since 2023. He fact-checks all content against official MCS and Ofgem data and maintains relationships with MCS-certified installers across the UK.