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Gate community-heated dwellings from ASHP recommendation 🟩

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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Daniel Roth 2026-07-01 14:18:52 +00:00
parent 576fc948a6
commit 6eb2a02a6e
1 changed files with 5 additions and 1 deletions
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6
domain/modelling/generators/heating_recommendation.py
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@ -670,10 +670,14 @@ def _ashp_eligible(epc: EpcPropertyData, restrictions: PlanningRestrictions) ->
installability — the Optimiser owns the economics (ADR-0024), so floor area,
built form, fuel, and fabric are deliberately not gates. A conservation area
does not exclude ASHP (offered with a planning caveat); a listed/heritage
protection (`blocks_internal`) does."""
protection (`blocks_internal`) does. Community heating (SAP Table 4a codes
301–304 or category 6) is excluded by topology: replacing a shared heat
network with an individual ASHP is never appropriate."""
main: MainHeatingDetail = epc.sap_heating.main_heating_details[0]
if main.main_heating_category == _HEAT_PUMP_CATEGORY:
return False
if is_heat_network_main(main):
return False
if restrictions.blocks_internal:
return False
return _is_house_or_bungalow(epc)