{
 "id": "mcs_panel_age_adjustment",
 "name": "Whether the MCS method allows for panels ageing",
 "category": "payback",
 "value_num": null,
 "display": "No adjustment for the age of the panels",
 "unit": "MGD 003 clause 4.4.2, as applied to the self-use estimate",
 "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 method takes no account of panels getting older, and its output estimate is for the first year. Neither MCS document states how fast panels lose output, so we do not either. If someone gives you a rate, ask where it came from.",
 "next": null,
 "url": "https://hearthsum.co.uk/api/mcs_panel_age_adjustment.json"
}