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Closes the high-SAP under-prediction gap diagnosed in 16h. 40% of SAP-85+ properties have PV; predicted_ecf was 1.74 mean at that band -> SAP ~88 via the formula, vs label SAP 90+. Inverse: PV homes had HIGHER predicted_ecf than non-PV at the same band because cost reconstruction had zero export credit. New helper: predicted_pv_generation_kwh(kWp, region) -> kWh/yr from a SAP10.2 Table 6e regional yield factor (UK avg 850 kWh/kWp/yr; Highland 650; Thames 920). predicted_total_fuel_cost_gbp now subtracts pv_kwh * standard electricity price (Table 32 code 30, both self-consumption and export at 13.19 p/kWh). New feature column predicted_pv_generation_kwh exposed alongside the adjusted cost so the model sees both signals. VERSION 2.0.0 -> 2.1.0 (MINOR: column added; existing column semantics shifted but pre-deploy so no consumer break). |
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| .. | ||
| domain | ||
| fetchers | ||
| repos | ||
| utils | ||
| README.md | ||
Shared packages
Workspace packages consumed by services/*. Each package is its own Python distribution with its own pyproject.toml; services import via the workspace dependency mechanism ({ workspace = true }).
| Package | Purpose |
|---|---|
domain/ |
Shared domain types — Property, BaselinePerformance, Plan, Scenario, EpcPropertyData, etc. No persistence, no IO, no business logic. |
repos/ |
Persistence layer — one repo per aggregate. Owns the SQL. Depends on domain. |
fetchers/ |
External API clients (gov EPC, Ofgem, Google Solar, etc.). Depend on domain for response shapes. |
utils/ |
Cross-cutting infra — logging, S3, CloudWatch URL builders, SQS task helpers. |
Adding a new shared package
Only when a real second consumer materialises. Don't pre-shatter (repos-epc, repos-property, ...) — split when a deployment needs to drop a dep, not before.
See ../ara_backend_design.md §11 for the broader monorepo layout and ../CONTEXT.md for the domain glossary that names the types living in domain/.