Model/packages/domain
Khalim Conn-Kowlessar 831ebac2ae slice 18d: seasonal_efficiency category fallback for null SAP code (v2.6.0)
Many real certs carry main_heating_category=4 (heat pump) but null
sap_main_heating_code, so seasonal_efficiency() was returning the 0.80
gas-boiler default — a 3x COP under-count that dragged the high-SAP
heat-pump tail. Adds main_heating_category + main_fuel_type fallbacks:
cat=4 -> 2.30, cat=7 -> 1.00, cat=10 routes by fuel
(electric=1.00, gas=0.55, oil=0.65), cat=5 warm air -> 0.76.
Explicit SAP codes still win.
2026-05-17 18:13:47 +00:00
..
src/domain slice 18d: seasonal_efficiency category fallback for null SAP code (v2.6.0) 2026-05-17 18:13:47 +00:00
pyproject.toml slice 13: to_rows(properties) returns pd.DataFrame 2026-05-16 16:43:28 +00:00
README.md added potential file scaffolding: 2026-05-15 10:56:53 +00:00

domna-domain

Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.

Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.

Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.

Layout

src/domain/
├── __init__.py
├── property.py             # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py                 # Plan, PlanPhase, OptimisedPackage
├── scenario.py             # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
    ├── __init__.py
    ├── transform.py        # EpcMlTransform (versioned per §8.3)
    └── schema.py

When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.