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Khalim Conn-Kowlessar cda469dd7d slice 16e: predicted_total_fuel_cost / predicted_ecf / predicted_log10_ecf 
ECF reconstruction per SAP10 §20.1 (Mid physics, ADR-0008):

  total_cost_gbp = (space_kwh*p_space + dhw_kwh*p_dhw + light_kwh*p_elec) / 100
  ECF = 0.42 * total_cost / (TFA + 45)
  log10_ecf = log10(ECF)   [0 for non-positive]

p_* are Table 32 unit prices via fuel_unit_price_p_per_kwh. Standing
charges deliberately omitted (constant fuel-mix offset; ADR-0008).

predicted_sap_score is NOT emitted as a feature (ADR-0008 Mid not Deep):
the model is left to learn the piecewise log/linear transform from
log10_ecf -> SAP itself, keeping the data layer SAP-version-agnostic.

VERSION 0.3.0 -> 0.4.0 (MINOR).
2026-05-17 12:00:06 +00:00
..
src/domain slice 16e: predicted_total_fuel_cost / predicted_ecf / predicted_log10_ecf 2026-05-17 12:00:06 +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

README.md

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/.