Model/packages/domain
Khalim Conn-Kowlessar feef819814 §4 slice 8: line (64)m output from water heater
(64)m = max(0, (62)m + (63a)m + (63b)m + (63c)m + (63d)m)

The four (63 a-d) inputs are WWHRS, PV-diverter, solar HW and FGHRS
contributions — entered as negative quantities so the formula uses +,
not −. The max-clamp guards "if (64)m < 0 then set to 0" per the spec
worksheet text: a renewable-heavy summer can't show negative delivered
heat.

Both Elmhurst non-RR fixtures lodge zero for all four (no WWHRS, no PV
diverter, no solar, no FGHRS), so (64)m = (62)m for every month.
Validated end-to-end on both with abs=1e-3 kWh tolerance.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-20 16:08:18 +00:00
..
src/domain §4 slice 8: line (64)m output from water heater 2026-05-20 16:08:18 +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/.