Solar Glossary

Export Rate

The export rate is the price per kWh you are paid for solar electricity you send back to the grid, which is typically much lower than the retail price you pay to import electricity.

Export Rate explained

The export rate is the price per kilowatt-hour paid to you when your solar panels generate more electricity than you're using and the surplus flows into the grid. In the UK, this is determined by your SEG (Smart Export Guarantee) tariff.

Current export rates in the UK (2024–2026):

  • Standard SEG tariffs: 3–15p/kWh
  • Time-of-use export tariffs (e.g. Octopus Flux, Agile): can reach 20–40p/kWh during peak grid demand (typically 4–7 pm weekdays)
  • Old FIT export tariff: 3–5.5p/kWh (fixed for existing contracts)

Compare this to the typical import rate of 24–28p/kWh — export earnings are substantially less than the value of self-consumed power. This gap makes battery storage increasingly attractive: storing midday solar surplus to use in the evening means using power worth 24–28p/kWh instead of receiving just 6–12p/kWh for export.

The export rate gap also explains why EV charging, immersion heaters, and smart appliances are valuable solar accessories — they convert surplus solar into avoided fuel costs (petrol/diesel savings for EVs, lower gas bills for hot water heating) at rates far exceeding what you'd earn exporting.

How this affects your solar decision

The export rate you can achieve determines whether battery storage, smart appliances, or EV charging offers better financial returns than simply exporting surplus solar. Use the Solar Savings Calculator to compare your options.

Compare export income vs battery storage savings for your systemSolar Savings Calculator

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