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Model/tests/domain/sap10_calculator
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Khalim Conn-Kowlessar a97ff60b01 fix(water-heating): complete RdSAP Table 28 cylinder-size map (codes 5 + 6) 
`_CYLINDER_SIZE_CODE_TO_LITRES` held only codes 2/3/4 (Normal/Medium/Large →
110/160/210 L); codes 5 (Inaccessible) and 6 (Exact) fell through to None,
so the Table-13 high-rate fraction AND the cylinder storage loss were skipped
for those certs (20 code-6 certs in the API sample).

Per RdSAP 10 Specification (10-06-2025) §10.5 Table 28 (PDF p.55):
- Code 6 "Exact": use the lodged measured volume. The gov API carries it in
  `cylinder_size_measured` (e.g. 150 L) — now plumbed through the 21.0.0/21.0.1
  schema → mapper → `SapHeating.cylinder_volume_measured_l`.
- Code 5 "Inaccessible": 210 L if off-peak electric dual immersion, 160 L from
  a solid-fuel boiler, otherwise 110 L (n=0 in the current sample, but
  spec-complete).

New `_cylinder_volume_l_from_code` centralises Table 28 resolution and replaces
the three raw-dict call sites (`_hot_water_cylinder_volume_l`, the cylinder
storage-loss path, and the PCDB performance check) so all three honour codes
5/6 identically. `_cylinder_inaccessible_volume_l` applies the code-5 context
rule via the existing immersion/off-peak-meter/solid-fuel-boiler detectors.

Worksheet harness UNAFFECTED (47/47, 0 divergers): the Summary path lodges
neither code 5/6 nor a measured volume. API gauge: within-0.5 64.4% -> 65.1%
(mean|err| 1.085 -> 1.075) — the 20 code-6 certs now size their cylinder from
the measured volume. 4 AAA tests (code 6 measured; code 5 solid-fuel/default/
off-peak-dual-immersion). pyright net-zero.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-11 10:02:39 +00:00
..
climate Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
rdsap fix(water-heating): complete RdSAP Table 28 cylinder-size map (codes 5 + 6) 2026-06-11 10:02:39 +00:00
validation Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
worksheet fix(heat-transmission): apply dry-lining Table 14 R=0.17 to the main wall 2026-06-11 09:43:50 +00:00
__init__.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_bre_worked_examples.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_calculator.py feat(calculator): thread per-end-use fuel codes + PV export onto SapResult 2026-06-05 18:59:24 +00:00
test_pcdb_etl.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_pcdb_lookup.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_pcdb_table_322_lookup.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_pcdb_table_329_lookup.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_pcdb_table_362_lookup.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_postcode_weather.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_table_12.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
test_table_12a.py fix(tariff): Unknown meter + storage/CPSU main → off-peak (§12) 2026-06-06 19:02:34 +00:00
test_table_13.py fix(water-heating): 18-/24-hour immersion DHW bills 100% low-rate (Table 12a scope) 2026-06-10 22:01:35 +00:00
test_table_32.py Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00