What Is the Smart Export Guarantee (SEG) and How Much Can My Business Earn?

Smart electricity meter and 100 amp fuse fitted inside an outdoor UK meter cabinet with visible wiring.

The Smart Export Guarantee (SEG) allows eligible organisations with solar panels to receive payments for surplus electricity exported to the grid. How much a site can earn depends on how much electricity it exports, the tariff offered by the electricity supplier, and how much solar generation is used on-site rather than exported. The important thing […]

SEG Explained Simply: How SEG Export Rates Work

A large white industrial solar inverter mounted inside a metal-framed facility, with multiple black cables connected underneath and electrical control boxes mounted nearby, against a background of steel beams and translucent wall panels.

The Smart Export Guarantee (SEG) is the UK’s primary mechanism for rewarding homeowners who contribute to the grid. While the basic concept is simple—getting paid for every unit of solar power you don’t use—the market in 2026 has become highly competitive, with rates varying significantly based on whether you also buy your energy from the same supplier or own a home battery. While basic standalone rates are lower (typically 3p to 6p), tech-savvy households can maximize earnings by using smart, time-of-use tariffs that pay more during peak evening hours.

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