| 
2019
 | 
[
  #<Node energy_heat_backup_burner_lt_network_gas>,0
  #<Node energy_heat_boiler_lt_electricity>,1
  #<Node energy_heat_burner_lt_hydrogen>,2
  #<Node energy_heat_heatpump_drink_water_water_ts_lt_electricity>,3
  #<Node energy_heat_heatpump_surface_water_water_ts_lt_electricity>,4
  #<Node energy_heat_heatpump_waste_water_water_ts_lt_electricity>,5
  #<Node energy_heat_heatpump_water_water_lt_electricity>,6
  #<Node energy_heat_import_lt_steam_hot_water>,7
  #<Node energy_heat_production_lt_residual_heat>,8
  #<Node energy_heat_solar_lt_solar_thermal>,9
  #<Node energy_heat_well_shallow_lt_geothermal>,10
] 
 | 
nodes | 
| 
2050
 | 
[
  #<Node energy_heat_backup_burner_lt_network_gas>,0
  #<Node energy_heat_boiler_lt_electricity>,1
  #<Node energy_heat_burner_lt_hydrogen>,2
  #<Node energy_heat_heatpump_drink_water_water_ts_lt_electricity>,3
  #<Node energy_heat_heatpump_surface_water_water_ts_lt_electricity>,4
  #<Node energy_heat_heatpump_waste_water_water_ts_lt_electricity>,5
  #<Node energy_heat_heatpump_water_water_lt_electricity>,6
  #<Node energy_heat_import_lt_steam_hot_water>,7
  #<Node energy_heat_production_lt_residual_heat>,8
  #<Node energy_heat_solar_lt_solar_thermal>,9
  #<Node energy_heat_well_shallow_lt_geothermal>,10
] 
 | 
nodes |