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Khalim Conn-Kowlessar 4e9ff7c3cb feat(calculator): thread per-end-use fuel codes + PV export onto SapResult
ADR-0014 BillDerivation attributes each end-use (HEATING / HOT_WATER /
SECONDARY / APPLIANCES / COOKING) to a fuel carrier and credits PV
export. SapResult already carried the per-end-use kWh but not WHICH
fuel each end-use burns, nor the annual exported kWh — so a downstream
SapResult->EnergyBreakdown adapter could not pick the right tariff.

Surfaces five output-only fields, threaded exactly like the recently
merged appliances/cooking change (2f039aeb):
  main_heating_fuel_code      RdSAP10 Table 32 / SAP 10.2 Table 12 fuel
  main_2_heating_fuel_code    code column (the lodged fuel code, e.g.
  secondary_heating_fuel_code mains gas 26). None when the corresponding
  hot_water_fuel_code         system is absent / fuel not resolvable.
  pv_exported_kwh_per_yr      SAP 10.2 Appendix M1 §3-4 annual export kWh
                              (0.0 when no PV).

cert_to_inputs.py populates the four fuel codes from the existing
resolvers the cost/CO2 cascade already uses — `_main_fuel_code`,
`_secondary_fuel_code`, `_water_heating_fuel_code` (not reinvented);
Main 2 is the second `main_heating_details` entry, guarded for length.
There is a single CalculatorInputs construction site (cert_to_demand_
inputs delegates to cert_to_inputs). `pv_exported_kwh_per_yr` already
existed on CalculatorInputs; SapResult collapses its Optional to 0.0.

HARD CONSTRAINT honoured — output-only, zero rating drift. These fields
do NOT feed ECF / total_fuel_cost_gbp / co2_kg_per_yr / primary_energy_*
/ sap_score / any monthly value. Every golden-fixture, Elmhurst e2e
SapResult pin, section cascade pin, and heating-corpus residual stays
byte-identical: calculator suite 1658 -> 1661 passed (+3 new tests),
4 skipped, 0 failed before and after. pyright net-zero (51 -> 51 in
domain/; no new errors in the touched test files).

New tests: a synthetic threading test (four fuel codes + PV export pass
unchanged through calculate_sap_from_inputs; None PV collapses to 0.0)
and a cert-level pin (mains-gas combi cert 000516 -> main fuel code 26,
no Main 2, secondary 30, HW 26). Synthetic CalculatorInputs / SapResult
fixtures updated for the new SapResult fields (defaults cover Inputs).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-02 18:16:40 +00:00
.devcontainer pr review, move domain and orhcestration 2026-06-01 14:00:31 +00:00
.github/workflows ddd tests 2026-06-02 15:31:42 +00:00
.idea scaffolding for ml pipeline 2026-05-16 14:15:56 +00:00
.vscode added utils to allow easier subtask management 2026-03-02 15:15:39 +00:00
applications Merge branch 'main' of https://github.com/Hestia-Homes/Model into feature/per-cert-mapper-validation 2026-06-02 16:10:41 +00:00
asset_list Remove EPC and asset_list changes unrelated to SAL handler 2026-05-22 15:36:46 +00:00
backend Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
backlog implemented onboarding 2026-04-21 20:23:33 +00:00
datatypes docs(baseline): Bill Derivation design — fuel as calculator output + rebaselining is assemble-and-score 2026-06-02 18:04:55 +00:00
deployment/terraform if you change the descript it destories and make a new one instead of edit 2026-06-02 09:36:31 +00:00
docs docs(baseline): Bill Derivation design — fuel as calculator output + rebaselining is assemble-and-score 2026-06-02 18:04:55 +00:00
domain feat(calculator): thread per-end-use fuel codes + PV export onto SapResult 2026-06-02 18:16:40 +00:00
epr_data_exports allowing carbon and energy otimisation by removing slack 2025-07-31 19:13:16 +01:00
etl booking status 2026-06-01 16:28:47 +00:00
infrastructure Remove EPC and asset_list changes unrelated to SAL handler 2026-06-01 16:39:09 +00:00
model_data/requirements its working the way khalim wanted wiht postcode and then search that 2026-01-22 15:17:13 +00:00
orchestration Merge branch 'main' of https://github.com/Hestia-Homes/Model into feature/per-cert-mapper-validation 2026-06-02 16:10:41 +00:00
recommendations save 2026-05-07 15:55:44 +00:00
repositories refactor(fuel-rates): name the adapter aggregate-first per house convention 2026-06-02 17:21:27 +00:00
sap worksheets/heating systems examples Add heating-systems corpus PDF fixtures so CI can run the residual pins 2026-06-02 15:38:03 +00:00
scripts Move sap10_calculator tests to tests/domain/sap10_calculator/ for CI 2026-06-02 16:58:00 +00:00
sfr/principal_pitch added added historic epc data class with shape 2026-05-08 12:03:35 +00:00
survey_report quidos site notes extraction 2025-02-18 19:49:29 +00:00
tests feat(calculator): thread per-end-use fuel codes + PV export onto SapResult 2026-06-02 18:16:40 +00:00
utilities get rid of comments 2026-05-20 13:21:11 +00:00
utils rename files in sharepoint to desired structure 2026-05-20 16:26:07 +00:00
.coveragerc fixed unit tests 2023-10-05 16:04:12 +01:00
.dockerignore deployment from infrastructure 2026-05-19 12:55:30 +00:00
.gitignore fixed merge conflicts from main 2026-05-26 11:21:09 +00:00
__init__.py added checking for directory before creation and made some minor style changes 2023-08-25 15:21:17 +01:00
ara_backend_design.md docs(ara): next-agent handover for Property Baseline (SAP calc) + Modelling 2026-06-01 16:20:06 +00:00
BaseUtility.py fixed missing task and subtask for single remote assessments 2025-11-27 17:50:26 +00:00
CLAUDE.md fixed merge conflicts from main 2026-05-26 11:21:09 +00:00
conftest.py working on integrating new EPC api into address2UPRN 2026-04-27 11:32:44 +00:00
CONTEXT.md docs(baseline): Bill Derivation design — fuel as calculator output + rebaselining is assemble-and-score 2026-06-02 18:04:55 +00:00
devcontainer.sh add dev container 2026-04-17 14:50:57 +00:00
Dockerfile.test fix: address 22 project-wide test failures from previous sweep 2026-05-26 13:34:51 +00:00
Dockerfile.test.dockerignore deployment from infrastructure 2026-05-19 12:55:30 +00:00
Makefile adding to dev container to create shared network on start up 2026-04-25 15:03:07 +00:00
MEMORY.md memory 2026-04-02 10:24:31 +00:00
package-lock.json restructuring openUrpn code 2023-07-20 11:41:43 +01:00
package.json restructuring openUrpn code 2023-07-20 11:41:43 +01:00
pyproject.toml slice 14a: ml_training_data pkg + sample.py (CSV filter + random sample) 2026-05-16 17:39:43 +00:00
pyrightconfig.json slice 14d: build_features wires bulk reader -> mapper -> EpcMlTransform 2026-05-16 18:38:41 +00:00
pytest.ini test suite to pick it up 2026-06-02 15:33:46 +00:00
README.md adding to dev container to create shared network on start up 2026-04-25 15:03:07 +00:00
run_lambda_local.sh debugging local lambda run and updating the sap point checking condition 2023-09-13 18:47:12 +01:00
serverless.yml added logic to add to serverless 2026-04-22 12:39:44 +00:00
test.requirements.txt tests wrong environemnt 2026-05-29 16:17:06 +00:00
tox.ini removing playright install for integration test 2026-04-30 20:08:13 +00:00
UBIQUITOUS_LANGUAGE.md standardist Address 2026-06-01 16:32:48 +00:00

Model Repository

This repository contains the code pertaining to the development of the data science and machine learning products being utilised by Hestia.

The different folders in this repository relate to services that can be used independently, or can be imported and used as part of a larger application

Getting Started

Prerequisites

Dev Container Setup

This repo uses a Docker Compose-based dev container. The model-backend service joins a shared-dev Docker network so it can communicate with other local services (e.g. a frontend container) running on your machine.

VS Code users: The initializeCommand in devcontainer.json creates the shared-dev network automatically before the container starts. No manual step required — just open the repo and select Reopen in Container.

Non-VS Code / CI workflows: Run the following once before starting the container:

make dev-setup

This is idempotent and safe to re-run if the network already exists.

Folders

backend/

This folder contains the code for the fastapi backend service, which provides an interface to much of the functionality in this repository, for the frontend

model_data/

This folder contains related to the reading and preparation of assessment model data, including pulling out epc attributes

Testing

All tests can be run, against the configuration in pytest.ini running

pytest

This will run the complete panel of tests and report on coverage in the locations specified by the pytest.ini file.

To run tests in a specific service, e.g. inside of model_data, simply run

pytest --cov-config=model_data/.coveragerc --cov=model_data

This will produce the test results and coverage reports