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):
Big energy companies have had to participate in the SEG since the beginning of 2020.
All energy suppliers with 150,000 or more customers must provide at least one SEG tariff.
A fixed SEG tariff will pay a determined rate per kWh of electricity exported over the length of the contract.
