Solar Export Tariff Rates: A Homeowner’s Guide to SEG Payments in London & Kent

How much can I earn exporting solar electricity? Homeowners can typically earn between £150 and £675 per year through the Smart Export Guarantee (SEG), depending on their system size, battery storage, and chosen tariff. Rates currently range from approximately 3p to 25p per kWh. By switching to a high-paying export tariff, you can significantly improve your solar panel return on investment. ## What is the Smart Export Guarantee (SEG)? The Smart Export Guarantee (SEG) is a government-backed initiative that requires larger energy suppliers to pay small-scale renewable generators for the surplus electricity they export back to the national grid. Unlike the legacy Feed-in Tariff (FiT), which paid for both generation and export, the SEG focuses exclusively on the energy you do not use yourself. For residents in London and Kent, this means that every kilowatt-hour (kWh) of solar energy you generate but don't consume is a potential revenue stream. ## How do solar export tariff rates work? SEG rates are not fixed by the government; instead, each energy supplier sets its own rates. These can be fixed or variable and often fluctuate based on wholesale energy market conditions. Suppliers generally offer two types of tariffs: 'open-to-all' rates, which are available regardless of who supplies your electricity, and 'exclusive' rates, which are reserved for customers who also purchase their import electricity from that same provider. In many cases, switching your import supplier to one that offers a competitive export rate can triple your annual earnings. ## Why does a solar battery change the game? For homeowners in Kent and London, installing a solar battery is one of the most effective ways to boost export income. Without a battery, your system automatically exports energy during the day when the sun is shining—often when grid demand is low and export rates are less favourable. With a battery, you can store that energy and discharge it during peak hours or when your specific tariff offers the highest payout. This flexibility allows you to move away from 'passive' exporting and into a more strategic management of your home energy. ## How can I choose the best tariff for my home? When comparing rates, consider these three factors: 1. Import vs. Export: Are you willing to switch your main electricity supplier to unlock a higher export rate? Often, the best export deals are bundled with specific import tariffs. 2. Time-of-Use: Some advanced tariffs pay different rates depending on the time of day. If you have a smart meter and a battery, these can be highly lucrative. 3. Contract Flexibility: Check if the tariff is fixed or variable. While variable rates can be higher, they also carry the risk of dropping if wholesale prices fall. Always verify the latest rates on the supplier’s official website before committing, as these figures change frequently. ## Key Takeaways - Earnings Potential: You can potentially earn hundreds of pounds annually by selecting a high-paying SEG tariff. - Independence: You do not need to use the same supplier for your import electricity and your export payments. - Battery Advantage: Adding a battery allows you to store energy and export it when rates are at their peak. - Eligibility: Ensure your system is MCS-certified and you have a smart meter installed to qualify for payments. - Tax Status: For most domestic households in the UK, income generated through the SEG is tax-free.