G100 – Export Control

Ensuring Safe & Compliant Solar Energy Export to the Grid

As more homes and businesses embrace solar energy, the ability to export surplus electricity back to the grid has become an essential part of maximising energy efficiency and financial returns. However, exporting power comes with regulatory requirements to ensure grid stability. That’s where G100 Export Control comes in.

At Sunlight Solar, we provide expert G100-compliant export limitation solutions, helping homeowners and businesses safely and legally manage the electricity they send back to the grid.

What is G100 Export Control?

G100 is the Energy Networks Association (ENA) standard that regulates how distributed generation systems (such as solar PV) export electricity to the UK grid. It ensures that solar installations do not exceed network capacity limits, preventing grid overloading.

A G100-compliant export limitation system monitors and controls the amount of electricity being exported, ensuring it stays within the permitted limits set by the local Distribution Network Operator (DNO).

Do You Need G100 Export Limitation?

You may need a G100-compliant export control system if:

• Your solar PV system generates more power than your DNO allows for export.
• You want to maximize your solar energy use onsite while complying with grid regulations.
• You’ve been required by your DNO to implement export limitation as part of your solar installation approval.
• You’re installing a commercial-scale solar system with potential high export volumes.

Without an approved G100 export control system, your solar project could face delays or restrictions in connecting to the grid.