{
 "id": "mcs_self_use_home_all_day",
 "name": "Share of solar output used at home, MCS method, home all day",
 "category": "payback",
 "value_num": [
  29,
  36
 ],
 "display": "29% to 36% of what the panels make, home all day, no battery",
 "unit": "percent of annual generation used in the home, PV only, for a home using 3,500 to 3,999 kWh a year, across generation bands from 2,700 to 4,199 kWh",
 "period_start": "2022-04-01",
 "period_end": null,
 "period_kind": "page_date",
 "deadline": null,
 "source_url": "https://mcscertified.com/wp-content/uploads/2022/04/MGD-003-Solar-PV-Self-Consumption-Issue-2.0-Final.pdf",
 "source_org": "MCS",
 "checked_at": "2026-09-08",
 "recheck_by": "2027-03-08",
 "history": [],
 "public_note": "MCS's own table for a home with someone in during the day, using the electricity a typical British home uses. The share falls as the system grows, because a bigger system makes more at midday than the house can take. It is an average for similar homes, not a forecast for yours.",
 "next": null,
 "url": "https://hearthsum.co.uk/api/mcs_self_use_home_all_day.json"
}