{
 "id": "seg_rules",
 "name": "Smart Export Guarantee, how it works",
 "category": "seg",
 "value_num": null,
 "display": "Suppliers with 150,000 or more domestic customers must offer a tariff and set their own rate, which must be above zero. You need MCS or equivalent certification and a meter that records export half-hourly. Great Britain only.",
 "unit": "scheme rules",
 "period_start": "2020-01-01",
 "period_end": null,
 "period_kind": "data",
 "deadline": null,
 "source_url": "https://www.ofgem.gov.uk/environmental-and-social-schemes/smart-export-guarantee-seg",
 "source_org": "Ofgem",
 "checked_at": "2026-09-08",
 "recheck_by": "2026-10-08",
 "history": [],
 "public_note": "Once your panels are up you can be paid for the electricity you send back to the grid. Suppliers set their own rates and Ofgem does not set a floor beyond it having to be above zero, so the difference between the best and worst deals is enormous. Shopping around is the whole game.",
 "next": null,
 "url": "https://hearthsum.co.uk/api/seg_rules.json"
}