01/05/2026
One thing UK households don't find out until after installation.
You cannot export excess energy from your home solar system in the UK without meeting one specific requirement.
The grid will not pay for your surplus energy unless your property qualifies for the Smart Export Guarantee (SEG).
The SEG is the only legitimate route for UK households to earn from their excess solar generation, but there are specific criteria you need to meet first.
Here's what you need to qualify:
- You must be based in the UK, only UK-based households are eligible for SEG payments.
- Your system capacity must be under 5 megawatts, the renewable energy system you install must fall below the 5MW threshold to qualify.
- Your installation must be MCS certified, the Microgeneration Certification Scheme (MCS) ensures your installation meets the required quality and safety standards.
- You must not be receiving FiT payments, if you are still receiving Feed-in Tariff (FiT) payments, you must be able to opt out of these before becoming eligible for SEG.
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