0 abbreviation for Smart Export Guarantee: an arrangement by which companies in the UK that supply electricity pay customers for extra renewable electricity those customers have produced and returned to the National Grid (= a system of special wires that take electricity from power stations to all parts of a country):
A fixed SEG tariff will pay a determined rate per kWh of electricity exported over the length of the contract.
All energy suppliers with 150,000 or more customers must provide at least one SEG tariff.
Big energy companies have had to participate in the SEG since the beginning of 2020.
