GQL Statement

share_of_residences_connected_to_heat_network = 
  SUM(
    V(households_space_heater_district_heating_ht_steam_hot_water_aggregator,share_of_households_useful_demand_for_space_heating_after_insulation),
    V(households_space_heater_district_heating_mt_steam_hot_water_aggregator,share_of_households_useful_demand_for_space_heating_after_insulation),
    V(households_space_heater_district_heating_lt_steam_hot_water_aggregator,share_of_households_useful_demand_for_space_heating_after_insulation)
  );
    
IF(share_of_residences_connected_to_heat_network <= 0.2,
  AREA(heat_length_of_connection_pipelines_in_meter_per_residence_first_bracket),
  IF(share_of_residences_connected_to_heat_network <= 0.4,
      AREA(heat_length_of_connection_pipelines_in_meter_per_residence_second_bracket),
      IF(share_of_residences_connected_to_heat_network <= 0.6,
        AREA(heat_length_of_connection_pipelines_in_meter_per_residence_third_bracket),
        IF(share_of_residences_connected_to_heat_network <= 0.8,
          AREA(heat_length_of_connection_pipelines_in_meter_per_residence_fourth_bracket),
          AREA(heat_length_of_connection_pipelines_in_meter_per_residence_fifth_bracket)))))

Result

2019 0.19 ms
1.7
meter
2050 0.08 ms
1.7
meter

Description

This query calculates the average length of the connection
pipelines per connected residence. This length depends on the share of residences
connected to the network. The more objects are connected to the network, the
higher the average pipeline length per connection. This is calculated by
distinguishing different length brackets.
It is assumed that the total share of all temperature levels of district heating
determines the bracket.
See https://github.com/quintel/documentation/blob/master/general/heat_infrastructure_costs.md
for more info

Characteristics

Groups
Unit meter
File path /app/tmp/etsource/gqueries/general/costs/heat_infrastructure/overall_support_queries/heat_length_of_connection_pipelines_in_meter_per_residence.gql

References

Gquery heat_infrastructure_ht_connection_pipelines_investment_costs
Gquery heat_infrastructure_lt_connection_pipelines_investment_costs
Gquery heat_infrastructure_mt_connection_pipelines_investment_costs
Gquery heat_length_of_connection_pipelines_in_meter_per_residence