assessment-model/src/lib/services
Khalim Conn-Kowlessar 1cd48bc78e fix(reporting): negative scenario carbon impact — move carbon fragments to effective baseline
"Total carbon saved" on the reporting scenario overlay went negative
(portfolio 796: -10,673 t/yr, £/tCO2 -8,195). Cause: the baseline side
(getTotals → carbonSql) summed bp.lodged_co2_emissions_t_per_yr, which
is NULL for predicted-only properties (12,064 of 796's 31,919 — no
mirrored lodged estimate is written), so they contributed nothing to
the baseline. The scenario side counted their plans' post_co2_emissions
(21,046 t) in full, dragging saved below zero. The same subtraction fed
£-per-tonne-CO2 and average-per-unit.

carbonSql and energyConsumptionSql were left on lodged_* when ADR-0002
(effective performance is the canonical current, superseding "reporting
stays on lodged") migrated the SAP fragments — the same reporting cards
were already mixing effective SAP with lodged carbon. Move both to
effective_*, which is populated for every property with a baseline row
and is the figure the plans' post_* values were scored against. All
call sites (reporting averages/totals, both scenario metrics routes,
portfolio table CO2 column/filter) are current-state surfaces, so none
wanted lodged. Legacy branch untouched.

Verified live on 796: baseline and scenario totals computed in one
snapshot with the shared fragment give saved = +4,059 t/yr (a plan
regeneration was writing 796 mid-diagnosis, so values drift run-to-run;
pre-fix the same snapshot maths gives ~ -13k and worsening as plans
land). Legacy portfolio 433 totals unchanged.

No regression-test seam exists for cross-query consistency (no DB test
harness); consistency is structural — both sides compose the same
carbonSql fragment.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 14:52:21 +00:00
..
epcSources.test.ts fix(reporting): age-band and property-type breakdowns for new-approach properties 2026-07-02 11:43:32 +00:00
epcSources.ts fix(reporting): negative scenario carbon impact — move carbon fragments to effective baseline 2026-07-02 14:52:21 +00:00
propertyDeletion.ts delete plan works 2026-01-15 13:38:31 +00:00
provenance.test.ts feat(epc): provenance signals + effective-baseline portfolio table 2026-06-23 22:21:33 +00:00
provenance.ts feat(epc): provenance signals + effective-baseline portfolio table 2026-06-23 22:21:33 +00:00