By the PPA Funding team Last updated
The Smart Export Guarantee (SEG) requires larger energy suppliers to pay for surplus renewable electricity you export to the grid. For business solar it is a useful bonus, but the bigger value comes from using your own generation on site, where it replaces expensive grid power.
How the SEG works
Under the SEG, eligible suppliers pay you a rate for each unit of surplus electricity you export. Rates vary by supplier, so it is worth comparing. Export earnings sit on top of the savings you make by using solar yourself.
Self-consumption beats export
Every unit you use on site saves you the full grid price, which is almost always higher than the export rate. That is why commercial systems are sized around your own demand — export is the surplus, not the goal.
Where battery storage fits
Battery storage lets you keep more of your generation for your own use rather than exporting it cheaply, increasing self-consumption and overall value.
This guide is general information, not financial or tax advice. Your circumstances determine what applies — please confirm with your accountant or advisor. Get a tailored proposal →
Frequently asked questions
Should I size my system to maximise export?
No. Using your own solar saves you the full grid price, which beats the export rate, so systems are sized around your on-site demand. Export is a useful bonus on genuine surplus.
Who receives the export payments under a PPA?
Arrangements vary by agreement. We explain clearly how self-consumption, savings and any export are treated in your specific proposal.
Related guides
- Commercial EV charging and solar: a natural pairing
- Commercial solar panel types explained
- How solar cuts your Scope 2 emissions and supports carbon reporting
See our funding options, commercial solar and solar by industry pages.