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Slice 102f-prep.11: Track 6 ASHP cohort fixtures + register 7 golden pins

Browse source 
Fetches the API JSON for each of the 6 previously-missing ASHP
cohort certs (0350, 2225, 2636, 3800, 9285, 9418) into
tests/fixtures/golden/ so they're tracked alongside cert 0380 (the
cohort anchor lodged earlier). Each cert's residual against its
GOV.UK EPC lodgement is pinned in `_GOLDEN_EXPECTATIONS`:
  - SAP integer residual = 0 across all 7 certs (cascade rounds to
    the lodged value exactly).
  - PE residual: -7.93 to -14.79 kWh/m² (cascade UNDER-estimates
    primary energy by ~8-15 — likely PV cascade self-consumption
    β-factor split per Appendix M §3, untouched by this workstream).
  - CO2 residual: +0.16 to +0.28 t/yr (cascade OVER-estimates by ~0.2).

The pins lock the current cascade state so future mapper / cascade
changes fire loudly when they shift the 7-cohort residuals (the same
pin-tracking convention as the existing 8 boiler golden certs).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Khalim Conn-Kowlessar 2026-05-27 16:59:47 +00:00 • committed by Jun-te Kim
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domain/sap10_calculator/rdsap/tests/fixtures/golden/0350-2968-2650-2796-5255.json vendored Normal file
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{
"uprn": 100110215925,
"roofs": [
{
"description": "Pitched, 300 mm loft insulation",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
"walls": [
{
"description": "Cavity wall, filled cavity and external insulation",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
"floors": [
{
"description": "Solid, no insulation (assumed)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
{
"description": "To external air, no insulation (assumed)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
}
],
"status": "entered",
"tenure": 2,
"window": {
"description": "High performance glazing",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"addendum": {
"addendum_numbers": [
8
]
},
"lighting": {
"description": "Good lighting efficiency",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"postcode": "CA7 2HG",
"hot_water": {
"description": "From main system",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 5
},
"post_town": "WIGTON",
"built_form": 4,
"created_at": "2026-05-22 14:30:29",
"door_count": 2,
"region_code": 9,
"report_type": 2,
"sap_heating": {
"number_baths": 1,
"cylinder_size": 3,
"shower_outlets": [
{
"shower_wwhrs": 1,
"shower_outlet_type": 2
}
],
"number_baths_wwhrs": 0,
"water_heating_code": 901,
"water_heating_fuel": 29,
"cylinder_thermostat": "Y",
"main_heating_details": [
{
"has_fghrs": "N",
"main_fuel_type": 29,
"heat_emitter_type": 1,
"emitter_temperature": 0,
"main_heating_number": 1,
"main_heating_control": 2206,
"main_heating_category": 4,
"main_heating_fraction": 1,
"mcs_installed_heat_pump": "false",
"central_heating_pump_age": 0,
"main_heating_data_source": 1,
"main_heating_index_number": 104568
}
],
"immersion_heating_type": "NA",
"cylinder_insulation_type": 1,
"has_fixed_air_conditioning": "false",
"cylinder_insulation_thickness": 50
},
"sap_version": 10.2,
"sap_windows": [
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 8,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.72,
"window_height": 1.27,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 8,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.19,
"window_height": 1.19,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 8,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.77,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 8,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.14,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
}
],
"schema_type": "RdSAP-Schema-21.0.1",
"uprn_source": "Energy Assessor",
"country_code": "ENG",
"main_heating": [
{
"description": "Air source heat pump, radiators, electric",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 5
}
],
"air_tightness": {
"description": "(not tested)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"dwelling_type": "Mid-terrace house",
"language_code": 1,
"pressure_test": 4,
"property_type": 0,
"address_line_1": "8 The Muslins",
"address_line_2": "Plumbland",
"address_line_3": "Aspatria",
"assessment_type": "RdSAP",
"completion_date": "2026-05-22",
"inspection_date": "2026-05-18",
"extensions_count": 1,
"measurement_type": 1,
"total_floor_area": 91,
"transaction_type": 5,
"conservatory_type": 1,
"heated_room_count": 4,
"registration_date": "2026-05-22",
"sap_energy_source": {
"mains_gas": "N",
"meter_type": 2,
"pv_batteries": [
{
"battery_capacity": 5
}
],
"pv_connection": 2,
"pv_battery_count": 1,
"photovoltaic_supply": [
[
{
"pitch": 3,
"peak_power": 1.5,
"orientation": 4,
"overshading": 1
}
],
[
{
"pitch": 3,
"peak_power": 1.5,
"orientation": 8,
"overshading": 1
}
]
],
"wind_turbines_count": 0,
"gas_smart_meter_present": "false",
"is_dwelling_export_capable": "true",
"wind_turbines_terrain_type": 2,
"electricity_smart_meter_present": "true"
},
"secondary_heating": {
"description": "None",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"extract_fans_count": 2,
"lzc_energy_sources": [
9,
11
],
"sap_building_parts": [
{
"identifier": "Main Dwelling",
"wall_dry_lined": "N",
"wall_thickness": 400,
"floor_heat_loss": 7,
"roof_construction": 4,
"wall_construction": 4,
"building_part_number": 1,
"sap_floor_dimensions": [
{
"floor": 0,
"room_height": {
"value": 2.48,
"quantity": "metres"
},
"floor_insulation": 1,
"total_floor_area": {
"value": 42.32,
"quantity": "square metres"
},
"party_wall_length": {
"value": 5.49,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 20.96,
"quantity": "metres"
}
},
{
"floor": 1,
"room_height": {
"value": 2.41,
"quantity": "metres"
},
"total_floor_area": {
"value": 42.32,
"quantity": "square metres"
},
"party_wall_length": {
"value": 5.49,
"quantity": "metres"
},
"heat_loss_perimeter": {
"value": 15.5,
"quantity": "metres"
}
}
],
"wall_insulation_type": 6,
"construction_age_band": "D",
"party_wall_construction": 0,
"wall_thickness_measured": "Y",
"roof_insulation_location": 2,
"roof_insulation_thickness": "300mm",
"wall_insulation_thickness": "100mm",
"floor_insulation_thickness": "NI"
},
{
"identifier": "Extension 1",
"wall_dry_lined": "N",
"wall_thickness": 400,
"floor_heat_loss": 1,
"roof_construction": 4,
"wall_construction": 4,
"building_part_number": 2,
"sap_floor_dimensions": [
{
"floor": 0,
"room_height": {
"value": 2.41,
"quantity": "metres"
},
"floor_insulation": 1,
"total_floor_area": {
"value": 5.9,
"quantity": "square metres"
},
"party_wall_length": {
"value": 5.46,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 2.16,
"quantity": "metres"
}
}
],
"wall_insulation_type": 6,
"construction_age_band": "D",
"party_wall_construction": 0,
"wall_thickness_measured": "Y",
"roof_insulation_location": 2,
"roof_insulation_thickness": "300mm",
"wall_insulation_thickness": "100mm",
"floor_insulation_thickness": "NI"
}
],
"solar_water_heating": "N",
"habitable_room_count": 4,
"heating_cost_current": {
"value": 788,
"currency": "GBP"
},
"insulated_door_count": 2,
"co2_emissions_current": 0.5,
"energy_rating_average": 60,
"energy_rating_current": 84,
"lighting_cost_current": {
"value": 63,
"currency": "GBP"
},
"main_heating_controls": [
{
"description": "Programmer, TRVs and bypass",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 3
}
],
"has_hot_water_cylinder": "true",
"heating_cost_potential": {
"value": 707,
"currency": "GBP"
},
"hot_water_cost_current": {
"value": 506,
"currency": "GBP"
},
"insulated_door_u_value": 1.1,
"mechanical_ventilation": 0,
"percent_draughtproofed": 100,
"suggested_improvements": [
{
"sequence": 1,
"typical_saving": {
"value": 81,
"currency": "GBP"
},
"indicative_cost": "\u00a35,000 - \u00a310,000",
"improvement_type": "W2",
"improvement_details": {
"improvement_number": 58
},
"improvement_category": 5,
"energy_performance_rating": 86,
"environmental_impact_rating": 96
},
{
"sequence": 2,
"typical_saving": {
"value": 44,
"currency": "GBP"
},
"indicative_cost": "\u00a34,000 - \u00a37,000",
"improvement_type": "N",
"improvement_details": {
"improvement_number": 19
},
"improvement_category": 5,
"energy_performance_rating": 87,
"environmental_impact_rating": 96
}
],
"co2_emissions_potential": 0.4,
"energy_rating_potential": 87,
"lighting_cost_potential": {
"value": 63,
"currency": "GBP"
},
"schema_version_original": "21.0.1",
"hot_water_cost_potential": {
"value": 454,
"currency": "GBP"
},
"renewable_heat_incentive": {
"water_heating": 2707.44,
"space_heating_existing_dwelling": 7230.68
},
"draughtproofed_door_count": 2,
"energy_consumption_current": 56,
"has_fixed_air_conditioning": "false",
"multiple_glazed_proportion": 100,
"calculation_software_version": "5.02r0344",
"energy_consumption_potential": 48,
"environmental_impact_current": 96,
"current_energy_efficiency_band": "B",
"environmental_impact_potential": 96,
"has_heated_separate_conservatory": "false",
"potential_energy_efficiency_band": "B",
"co2_emissions_current_per_floor_area": 5,
"low_energy_fixed_lighting_bulbs_count": 9,
"incandescent_fixed_lighting_bulbs_count": 0
}

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{
"uprn": 10000889035,
"roofs": [
{
"description": "Pitched, 300 mm loft insulation",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
"walls": [
{
"description": "Cavity wall, filled cavity and external insulation",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
}
],
"floors": [
{
"description": "Solid, no insulation (assumed)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
}
],
"status": "entered",
"tenure": 2,
"window": {
"description": "High performance glazing",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"addendum": {
"addendum_numbers": [
8
]
},
"lighting": {
"description": "Good lighting efficiency",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"postcode": "CA12 4QS",
"hot_water": {
"description": "From main system",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 5
},
"post_town": "KESWICK",
"built_form": 3,
"created_at": "2026-05-22 10:17:43",
"door_count": 2,
"region_code": 9,
"report_type": 2,
"sap_heating": {
"number_baths": 1,
"cylinder_size": 3,
"number_baths_wwhrs": 0,
"water_heating_code": 901,
"water_heating_fuel": 29,
"cylinder_thermostat": "Y",
"main_heating_details": [
{
"has_fghrs": "N",
"main_fuel_type": 29,
"heat_emitter_type": 1,
"emitter_temperature": 0,
"main_heating_number": 1,
"main_heating_control": 2206,
"main_heating_category": 4,
"main_heating_fraction": 1,
"mcs_installed_heat_pump": "false",
"central_heating_pump_age": 0,
"main_heating_data_source": 1,
"main_heating_index_number": 104568
}
],
"immersion_heating_type": "NA",
"cylinder_insulation_type": 1,
"has_fixed_air_conditioning": "false",
"cylinder_insulation_thickness": 50
},
"sap_version": 10.2,
"sap_windows": [
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 0.61,
"window_height": 0.98,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 6,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.72,
"window_height": 1.27,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 2,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.75,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.16,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 0.61,
"window_height": 0.95,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 2,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.1,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 2,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.75,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 2,
"window_type": 1,
"glazing_type": 14,
"window_width": 0.64,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 6,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.74,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 6,
"window_type": 1,
"glazing_type": 14,
"window_width": 1.16,
"window_height": 0.97,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"orientation": 4,
"window_type": 1,
"glazing_type": 14,
"window_width": 0.62,
"window_height": 0.94,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
}
],
"schema_type": "RdSAP-Schema-21.0.1",
"uprn_source": "Energy Assessor",
"country_code": "ENG",
"main_heating": [
{
"description": "Air source heat pump, radiators, electric",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 5
}
],
"air_tightness": {
"description": "(not tested)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"dwelling_type": "End-terrace house",
"language_code": 1,
"pressure_test": 4,
"property_type": 0,
"address_line_1": "1 The Orchard",
"address_line_2": "Bassenthwaite",
"assessment_type": "RdSAP",
"completion_date": "2026-05-22",
"inspection_date": "2026-05-22",
"extensions_count": 0,
"measurement_type": 1,
"total_floor_area": 82,
"transaction_type": 5,
"conservatory_type": 1,
"heated_room_count": 5,
"registration_date": "2026-05-22",
"sap_energy_source": {
"mains_gas": "N",
"meter_type": 2,
"pv_batteries": [
{
"battery_capacity": 5
}
],
"pv_connection": 2,
"pv_battery_count": 1,
"photovoltaic_supply": {
"pv_arrays": [
{
"pitch": 3,
"peak_power": 3.28,
"orientation": 4,
"overshading": 1
}
]
},
"wind_turbines_count": 0,
"gas_smart_meter_present": "false",
"is_dwelling_export_capable": "true",
"wind_turbines_terrain_type": 2,
"electricity_smart_meter_present": "true"
},
"secondary_heating": {
"description": "None",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"extract_fans_count": 2,
"lzc_energy_sources": [
9,
11
],
"sap_building_parts": [
{
"identifier": "Main Dwelling",
"wall_dry_lined": "N",
"wall_thickness": 400,
"floor_heat_loss": 7,
"roof_construction": 4,
"wall_construction": 4,
"building_part_number": 1,
"sap_floor_dimensions": [
{
"floor": 0,
"room_height": {
"value": 2.41,
"quantity": "metres"
},
"floor_insulation": 1,
"total_floor_area": {
"value": 41.49,
"quantity": "square metres"
},
"party_wall_length": {
"value": 4.69,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 21.44,
"quantity": "metres"
}
},
{
"floor": 1,
"room_height": {
"value": 2.44,
"quantity": "metres"
},
"total_floor_area": {
"value": 41,
"quantity": "square metres"
},
"party_wall_length": {
"value": 4.69,
"quantity": "metres"
},
"heat_loss_perimeter": {
"value": 21.44,
"quantity": "metres"
}
}
],
"wall_insulation_type": 6,
"construction_age_band": "D",
"party_wall_construction": 0,
"wall_thickness_measured": "Y",
"roof_insulation_location": 2,
"roof_insulation_thickness": "300mm",
"wall_insulation_thickness": "50mm",
"floor_insulation_thickness": "NI"
}
],
"solar_water_heating": "N",
"habitable_room_count": 5,
"heating_cost_current": {
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{
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}

417
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{
"uprn": 100110213833,
"roofs": [
{
"description": "Pitched, 300 mm loft insulation",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
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{
"description": "Cavity wall, filled cavity and external insulation",
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},
{
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],
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},
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},
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},
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},
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],
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}
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{
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"low_energy_fixed_lighting_bulbs_count": 10,
"incandescent_fixed_lighting_bulbs_count": 0
}

485
domain/sap10_calculator/rdsap/tests/fixtures/golden/3800-8515-0922-3398-3563.json vendored Normal file
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{
"uprn": 10000889036,
"roofs": [
{
"description": "Pitched, 300 mm loft insulation",
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],
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}
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{
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{
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{
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{
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],
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{
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"environmental_efficiency_rating": 5
}
],
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},
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],
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}
}
],
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},
{
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{
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},
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{
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},
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"low_energy_fixed_lighting_bulbs_count": 10,
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}

416
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{
"uprn": 100110214652,
"roofs": [
{
"description": "Pitched, 200 mm loft insulation",
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"environmental_efficiency_rating": 4
}
],
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{
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}
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{
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}
],
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},
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8
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},
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},
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},
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{
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],
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}
],
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},
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{
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{
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},
{
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{
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},
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11
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},
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},
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"co2_emissions_current_per_floor_area": 5,
"low_energy_fixed_lighting_bulbs_count": 10,
"incandescent_fixed_lighting_bulbs_count": 0
}

475
domain/sap10_calculator/rdsap/tests/fixtures/golden/9418-3062-8205-3566-7200.json vendored Normal file
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@ -0,0 +1,475 @@
{
"uprn": 10000888732,
"roofs": [
{
"description": "Pitched, 300 mm loft insulation",
"energy_efficiency_rating": 5,
"environmental_efficiency_rating": 5
}
],
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},
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],
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}
],
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{
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{
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{
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],
"schema_type": "RdSAP-Schema-21.0.1",
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{
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"environmental_efficiency_rating": 5
}
],
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},
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"pressure_test": 4,
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],
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"peak_power": 1.64,
"orientation": 1,
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],
[
{
"pitch": 3,
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}
]
],
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"lzc_energy_sources": [
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11
],
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{
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{
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},
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{
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}
],
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},
{
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}
],
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"roof_insulation_location": 4,
"roof_insulation_thickness": "ND",
"wall_insulation_thickness": "100mm",
"floor_insulation_thickness": "NI"
},
{
"identifier": "Extension 2",
"wall_dry_lined": "N",
"wall_thickness": 400,
"floor_heat_loss": 7,
"roof_construction": 5,
"wall_construction": 4,
"building_part_number": 3,
"sap_floor_dimensions": [
{
"floor": 0,
"room_height": {
"value": 2.35,
"quantity": "metres"
},
"floor_insulation": 1,
"total_floor_area": {
"value": 1.21,
"quantity": "square metres"
},
"party_wall_length": {
"value": 0,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 3.48,
"quantity": "metres"
}
}
],
"wall_insulation_type": 6,
"construction_age_band": "D",
"party_wall_construction": "NA",
"wall_thickness_measured": "Y",
"roof_insulation_location": 4,
"roof_insulation_thickness": "ND",
"wall_insulation_thickness": "100mm",
"floor_insulation_thickness": "NI"
}
],
"solar_water_heating": "N",
"habitable_room_count": 3,
"heating_cost_current": {
"value": 542,
"currency": "GBP"
},
"insulated_door_count": 2,
"co2_emissions_current": 0.4,
"energy_rating_average": 60,
"energy_rating_current": 85,
"lighting_cost_current": {
"value": 58,
"currency": "GBP"
},
"main_heating_controls": [
{
"description": "Programmer, TRVs and bypass",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 3
}
],
"has_hot_water_cylinder": "true",
"heating_cost_potential": {
"value": 462,
"currency": "GBP"
},
"hot_water_cost_current": {
"value": 678,
"currency": "GBP"
},
"insulated_door_u_value": 1.1,
"mechanical_ventilation": 0,
"percent_draughtproofed": 100,
"suggested_improvements": [
{
"sequence": 1,
"typical_saving": {
"value": 80,
"currency": "GBP"
},
"indicative_cost": "\u00a35,000 - \u00a310,000",
"improvement_type": "W2",
"improvement_details": {
"improvement_number": 58
},
"improvement_category": 5,
"energy_performance_rating": 86,
"environmental_impact_rating": 96
},
{
"sequence": 2,
"typical_saving": {
"value": 80,
"currency": "GBP"
},
"indicative_cost": "\u00a34,000 - \u00a37,000",
"improvement_type": "N",
"improvement_details": {
"improvement_number": 19
},
"improvement_category": 5,
"energy_performance_rating": 89,
"environmental_impact_rating": 97
}
],
"co2_emissions_potential": 0.3,
"energy_rating_potential": 89,
"lighting_cost_potential": {
"value": 58,
"currency": "GBP"
},
"schema_version_original": "21.0.1",
"hot_water_cost_potential": {
"value": 584,
"currency": "GBP"
},
"renewable_heat_incentive": {
"water_heating": 2670.41,
"space_heating_existing_dwelling": 6894.01
},
"draughtproofed_door_count": 2,
"energy_consumption_current": 59,
"has_fixed_air_conditioning": "false",
"multiple_glazed_proportion": 100,
"calculation_software_version": "5.02r0344",
"energy_consumption_potential": 47,
"environmental_impact_current": 96,
"current_energy_efficiency_band": "B",
"environmental_impact_potential": 97,
"has_heated_separate_conservatory": "false",
"potential_energy_efficiency_band": "B",
"co2_emissions_current_per_floor_area": 5,
"low_energy_fixed_lighting_bulbs_count": 8,
"incandescent_fixed_lighting_bulbs_count": 0
}

101
domain/sap10_calculator/rdsap/tests/test_golden_fixtures.py
View file

@ -236,6 +236,107 @@ _EXPECTATIONS: tuple[_GoldenExpectation, ...] = (
# remains in fixtures/golden/ as reference data per ADR-0010 §10;
# will be subsumed by a BRE worked-example fixture covering the
# heat-network path during P5.
# 7-cert ASHP cohort — air source heat pump certs validated end-to-end
# against Elmhurst dr87 worksheets. Each cert closes to SAP integer
# = lodged at residual = 0; the unrounded SAP delta sits in a tight
# +0.030..+0.060 cluster from the systematic PSR-denominator HLC×ΔT
# drift documented in HANDOVER_CERT_0380_MIT_CASCADE.md (BRE web
# confirmed max_output_kw = 4.39 for record 104568 and 3.933 for
# 102421 — both match the cascade exactly, so the drift is in the
# HLC × 24.2 K design-heat-loss denominator, not the numerator).
# All 7 share PCDB 104568 (Mitsubishi PUZ-WM50VHA) except 9418
# (Daikin EDLQ05CAV3 / PCDB 102421).
_GoldenExpectation(
cert_number="0380-2471-3250-2596-8761",
actual_sap=89,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-14.7865,
expected_co2_resid_tonnes_per_yr=+0.2774,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, semi-detached bungalow "
"TFA 60.43 age D, PV 3 kWp. Worksheet SAP 88.5104 — slice "
"102f-prep.1-9 closed cohort cascade SAP residual integer "
"to 0. PE residual -14.79 stems mostly from PV cascade "
"self-consumption β-factor split (Appendix M §3) — PE is "
"computed at PCDB Table 172 postcode climate (demand pass) "
"vs rating SAP at UK-avg, so PV self-consumption captures "
"different export/import fractions."
),
),
_GoldenExpectation(
cert_number="0350-2968-2650-2796-5255",
actual_sap=84,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-7.9281,
expected_co2_resid_tonnes_per_yr=+0.1697,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, ASHP cohort cert. "
"Worksheet SAP 84.1367 — cascade integer matches lodged."
),
),
_GoldenExpectation(
cert_number="2225-3062-8205-2856-7204",
actual_sap=89,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-11.9175,
expected_co2_resid_tonnes_per_yr=+0.2617,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, ASHP cohort cert with "
"PV. Worksheet SAP 88.7921. Slice 102f-prep.8 closed the "
"shower_outlets=None default (SAP residual -0.31 → +0.04)."
),
),
_GoldenExpectation(
cert_number="2636-0525-2600-0401-2296",
actual_sap=86,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-9.7153,
expected_co2_resid_tonnes_per_yr=+0.2189,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, ASHP cohort cert with "
"PV + 3.74 m² cantilever exposed floor + 12.76 m² alt wall. "
"Worksheet SAP 86.2641. Slice 102f-prep.9 (cantilever) and "
"102f-prep.10 (alt-wall opening allocation per "
"window_wall_type) brought cascade walls to spec-exact "
"20.024 and SAP from +0.49 → +0.03."
),
),
_GoldenExpectation(
cert_number="3800-8515-0922-3398-3563",
actual_sap=86,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-9.7551,
expected_co2_resid_tonnes_per_yr=+0.2598,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, ASHP cohort cert. "
"Worksheet SAP 86.1458."
),
),
_GoldenExpectation(
cert_number="9285-3062-0205-7766-7200",
actual_sap=84,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-8.1110,
expected_co2_resid_tonnes_per_yr=+0.1559,
notes=(
"Mitsubishi PUZ-WM50VHA PCDB 104568, ASHP cohort cert. "
"Worksheet SAP 84.1369."
),
),
_GoldenExpectation(
cert_number="9418-3062-8205-3566-7200",
actual_sap=85,
expected_sap_resid=+0,
expected_pe_resid_kwh_per_m2=-9.5795,
expected_co2_resid_tonnes_per_yr=+0.2311,
notes=(
"Daikin Altherma EDLQ05CAV3 PCDB 102421 (heating_duration "
"code '24' — continuous, all days at Th). Worksheet SAP "
"84.6305. Slice 102f-prep.7 closed the Table N4 fixed-"
"duration MIT cascade (-2°C → +0.03)."
),
),
)