GQL Statement
share_of_households_in_district_heating_demand = 
  DIVIDE(
    V(households_final_demand_mt_steam_hot_water,demand),
    V(energy_distribution_mt_steam_hot_water,demand)
  );
  
  PRODUCT(
    SUM(
      Q(heat_infrastructure_mt_primary_pipelines_depreciation_costs),
      Q(heat_infrastructure_mt_primary_pipelines_capital_costs)
    ),
    share_of_households_in_district_heating_demand
  )
Result
| 
2019
 | 
0.0 
 | 
euro | 
| 
2050
 | 
0.0 
 | 
euro | 
Description
Annual maintenance costs of primary pipelines for households,
by share of household heat demand in the total district heating 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_outdoor_infrastructure_costs_per_household/support_queries/households_mt_primary_pipelines_capex.gql
 | 
References