Model/docs/adr
Khalim Conn-Kowlessar 6c966ffe2b docs: handover for Table 3c two-profile combi loss → close 4 Elmhurst fixtures
Rewrites HANDOVER_NEXT.md for the next agent. Two-ticket sequence:

1. Table 3c (immediate): implement SAP10.2 Appendix J §J3 two-profile
   combi-loss formula + route PCDB records with separate_dhw_tests=2
   through it. Closes 000477/000480/000487/000516 from SAP delta
   +1/+12/+11/+12 to delta=0. Currently those fall through to Table 3a
   keep-hot 600 kWh/yr default = ~25× overshoot.
2. RdSAP API integration test (end-state): real RdSAP10 API response
   → EpcPropertyDataMapper → cert_to_inputs → SAP integer == lodged.
   User generating exotic fixtures to pressure-test first.

SPEC_COVERAGE §4 row updated to call out the Table 3c gap. ADR-0010
gains a "Cohort residual hunt + SAP 10.2 rating constants" amendment
documenting the 5 component closures (secondary heating, ventilation
cert lodgement, Table 4f pumps_fans, SAP 10.2 rating constants,
000477 partial) and naming the deferred Table 3c work.

Carries a PCDF parser concern: raw row at index 52 has 13.729 which
looks like F2-annual-kWh but parser reads F2 from fields[55] = 0.0.
Verify field positions per BRE PCDF Spec §7.11 before assuming F2=0.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-22 12:14:00 +00:00
..
0001-two-source-paths.md added architechtural decisions, added to prd 2026-05-13 21:26:18 +00:00
0002-property-aggregate-root.md added architechtural decisions, added to prd 2026-05-13 21:26:18 +00:00
0003-strict-ingestion-modelling-separation.md added architechtural decisions, added to prd 2026-05-13 21:26:18 +00:00
0004-baseline-performance-lodged-effective-pair.md scaffolding for ml pipeline 2026-05-16 14:15:56 +00:00
0005-multi-phase-scenarios-per-phase-recompute.md scaffolding for ml pipeline 2026-05-16 14:15:56 +00:00
0006-deterministic-kwh-no-baseline-ml.md scaffolding for ml pipeline 2026-05-16 14:15:56 +00:00
0007-kwh-as-ml-target.md scaffolding for ml pipeline 2026-05-16 14:15:56 +00:00
0008-physics-as-feature.md docs: ADR-0008 physics-as-feature + v16.0.0 schema bump 2026-05-17 11:20:40 +00:00
0009-deterministic-sap-calculator.md ADR-0009: pivot to deterministic SAP 10.3 calculator (Accepted) 2026-05-17 21:27:21 +00:00
0010-sap10-calculator-spec-target-and-validation.md docs: handover for Table 3c two-profile combi loss → close 4 Elmhurst fixtures 2026-05-22 12:14:00 +00:00