Tariff window

Tariff window means the time period in which a tariff price, rate band or supplier schedule applies, such as an off-peak import period, peak period, half-hourly smart-tariff slot or managed EV charging window. It is a timing label within a tariff or tariff-linked service, not the tariff itself, a meter register, standing charge, export rate, export MPAN, smart-meter data route, device-control mode, SEG eligibility decision, DNO approval or proof that a household will save money.