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Slice 3 of Bill Derivation. sap_code_to_fuel(code) maps a SAP 10.2 / Table 32 fuel code to the canonical billing Fuel — bounded to the ~47 Table 32 codes (the carrier, orthogonal to the PCDB product index, so all PCDB heat pumps share one electricity code). Mains gas / LPG / oil+bioliquids / coal / smokeless / wood / electricity (standard + off-peak) / heat-network groupings; an unmapped code (dual fuel, grid-export) raises UnmappedSapCode rather than guessing. Also: ADR-0014 deferred/TODO section records the stubbed appliances+cooking (pending the SapResult fields), the off-peak day/night split, the heat-network rate gap, and regional rates / ETL. The SapResult -> EnergyBreakdown adapter (next slice) is gated on the appliances/cooking fields landing on SapResult. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| .. | ||
| 0001-two-source-paths.md | ||
| 0002-property-aggregate-root.md | ||
| 0003-python-writes-landlord-overrides-directly.md | ||
| 0003-strict-ingestion-modelling-separation.md | ||
| 0004-baseline-performance-lodged-effective-pair.md | ||
| 0005-multi-phase-scenarios-per-phase-recompute.md | ||
| 0006-deterministic-kwh-no-baseline-ml.md | ||
| 0007-kwh-as-ml-target.md | ||
| 0008-physics-as-feature.md | ||
| 0009-deterministic-sap-calculator.md | ||
| 0010-sap10-calculator-spec-target-and-validation.md | ||
| 0011-composable-stage-orchestrators.md | ||
| 0012-unit-of-work-per-stage-batch-transaction.md | ||
| 0013-bulk-upload-finaliser-writes-properties.md | ||
| 0013-calculator-produces-effective-performance-shadow-first.md | ||
| 0014-bill-derivation-from-real-fuel-rates.md | ||