Guide
The SEG is how you get paid for surplus solar electricity you export to the grid. Here’s how it works.
The Smart Export Guarantee requires larger licensed energy suppliers to offer a tariff paying homeowners for renewable electricity exported to the grid. If your panels generate more than you use, the surplus earns you money.
You generally need an MCS-certified (or equivalent) installation and an export meter — usually a smart meter capable of half-hourly export readings. Your installer will handle certification.
Crucially, SEG rates are set by each supplier, not fixed by government. They differ significantly, and you do not have to take the SEG tariff from the supplier you buy electricity from. Compare export rates once installed, and review them periodically.
Using your own electricity is almost always worth more than exporting it, because import rates exceed export rates. That is the main argument for battery storage — it shifts generation into your own usage rather than exporting it cheaply.
This article is general information. Costs and savings vary by property, energy use and tariff.
SEG eligibility normally requires accredited installation.