GQL Statement
demand_share_of_households_in_distribution_network = 
  DIVIDE(
    V(households_final_demand_mt_steam_hot_water,demand),
    SUM(
      V(households_final_demand_mt_steam_hot_water,demand),
      V(buildings_final_demand_mt_steam_hot_water,demand),
    )
  );
households_mt_indoor_capital_costs = 
  PRODUCT(
    Q(heat_infrastructure_mt_indoor_capital_costs),
    demand_share_of_households_in_distribution_network
  );
households_mt_indoor_depreciation_costs = 
  DIVIDE(
    Q(heat_infrastructure_households_mt_indoor_investment_costs),
    V(energy_distribution_mt_steam_hot_water,technical_lifetime)
  );
annual_household_indoor_infrastructure_capex = 
  SUM(
    households_mt_indoor_capital_costs,
    households_mt_indoor_depreciation_costs
  );
DIVIDE(
  annual_household_indoor_infrastructure_capex,
  V(households_space_heater_district_heating_mt_steam_hot_water,number_of_units)
)
Result
| 2019 | 0.0 | euro | 
| 2050 | 0.0 | euro | 
Description
Annual capex of indoor heat infrastructure per household, 
comprised of the indoor household depreciation costs
and indoor capital costs by demand share of households in the distribution network.
 
Characteristics
| Groups |  | 
| Unit | euro | 
| File path | /app/tmp/etsource/gqueries/output_elements/output_series/vertical_stacked_bar_mt_district_heating_costs_per_household/households_mt_indoor_infrastructure_costs_per_household/households_mt_indoor_heat_infrastructure_capex_per_household.gql | 
References