Solar Export Limitation Explained

By Home Solar Guide Team||educational
Independently written | Plain-English guide
Export limitation
Export limits cap what you send to the grid — but with a battery, the impact is minimal.

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Export tariffs pay very differently depending on your system size and whether you have a battery. See what setup would actually earn you the most at your home.

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Free. Uses your postcode and usage — no phone number needed.

Grid export
Generation
Battery solution
Savings impact

Want to know what system suits this tariff?

Export tariffs pay very differently depending on your system size and whether you have a battery. See what setup would actually earn you the most at your home.

Size a System for This Tariff

What is solar export limitation?

Export limitation means your DNO caps how much electricity you can send back to the grid — typically at 3.68kW (single phase). This does NOT limit how much you GENERATE — only how much you EXPORT at any moment. Impact: On a sunny day, a 6kW system generating 5kW while you use 1kW wants to export 4kW — but is limited to 3.68kW. Result: 0.32kW is 'curtailed' (wasted). Annual curtailment on a 6kW system: typically 1-5% of total generation. With a battery: almost zero curtailment because surplus charges the battery instead of exporting. Bottom line: export limitation is a minor issue for most homes and should NOT stop you installing a larger system.

Frequently Asked Questions

Want to know what system suits this tariff?

Export tariffs pay very differently depending on your system size and whether you have a battery. See what setup would actually earn you the most at your home.

Size a System for This Tariff

Free. Uses your postcode and usage — no phone number needed.