anchor.diff:  Activation curve,E_total_req_W,W,Electricity required by the district energy system,black
   Activation curve,E_total_to_grid_W_negative,W,Electricity sold to the grid,grey
   Activation curve,NG_used_CCGT_W,W,Natural Gas import to run CCGT plant,grey
  -,,,,
  +
   Cost Analysis,Capex_a_ACH,$USD(2015),Annualized CAPEX of absorption chiller,red
   Cost Analysis,Capex_a_CCGT,$USD(2015),Annualized CAPEX of combined cycle gas turbine,orange
   Cost Analysis,Capex_a_CT,$USD(2015),Annualized CAPEX of cooling tower,blue
  
positive.code: demand,Q_gain_lat_vent_kWh,kWh,Latent heat gain from ventilation and infiltration,purple_lighter
  demand,Q_gain_sen_data_kWh,kWh,Sensible heat gain from data centres,black
  demand,Q_loss_sen_ref_kWh,kWh,Sensible heat loss from refrigeration systems,grey
  ,,,,
  demand,DH_ww_kWh,kWh,District heating for hotwater demand,orange_light
  demand,DH_ww_MWhyr,MWh/yr,District heating for hotwater demand,orange_light
  demand,DH_ww0_kW,kW,Nominal district heating for hotwater demand,orange_light
  ,,,,
  demand,DH_hs_kWh,kWh,District heating for space heating demand,orange
  demand,DH_hs_MWhyr,MWh/yr,District heating for space heating demand,orange
  demand,DH_hs0_kW,kW,Nominal district heating for space heating demand,orange
  ,,,,
  demand,COAL_ww_kWh,kWh,Coal consumption due to hotwater,grey
  demand,COAL_ww_MWhyr,MWh/yr,Coal consumption due to hotwater,grey
  demand,COAL_ww0_kW,kW,Nominal Coal consumption due to hotwater,grey
  ,,,,
  demand,COAL_hs_kWh,kWh,Coal consumption due to space heating,black
  demand,COAL_hs_MWhyr,MWh/yr,Coal consumption due to space heating,black
  demand,COAL_hs0_kW,kW,Nominal Coal consumption due to space heating,black
  ,,,,
  demand,NG_ww_kWh,kWh,NG consumption due to hotwater,red_light
  demand,NG_ww_MWhyr,MWh/yr,NG consumption due to hotwater,red_light
  demand,NG_ww0_kW,kW,Nominal NG consumption due to hotwater,red_light
  ,,,,
  ,,,,
  supply,NG_CCGT_MWhyr,MWh/yr,NG-fired CGGT unit,blue_light
  ,,,,
  demand,NG_hs_kWh,kWh,NG consumption due to space heating,red
  demand,NG_hs_MWhyr,MWh/yr,NG consumption due to space heating,red
  demand,NG_hs0_kW,kW,Nominal NG consumption due to space heating,red
  ,,,,
  demand,OIL_ww_kWh,kWh,OIL consumption due to hotwater,orange_light
  demand,OIL_ww_MWhyr,MWh/yr,OIL consumption due to hotwater,orange_light
  demand,OIL_ww0_kW,kW,Nominal OIL consumption due to hotwater,orange_light
  ,,,,
  demand,OIL_hs_kWh,kWh,OIL consumption due to space heating,orange
  demand,OIL_hs_MWhyr,MWh/yr,OIL consumption due to space heating,orange
  demand,OIL_hs0_kW,kW,Nominal OIL consumption due to space heating,orange
  ,,,,
  demand,WOOD_ww_kWh,kWh,WOOD consumption due to hotwater,brown_light
  demand,WOOD_ww_MWhyr,MWh/yr,WOOD consumption due to hotwater,brown_light
  demand,WOOD_ww0_kW,kW,Nominal WOOD consumption due to hotwater,brown_light
  ,,,,
  demand,WOOD_hs_kWh,kWh,WOOD consumption due to space heating,brown
  demand,WOOD_hs_MWhyr,MWh/yr,WOOD consumption due to space heating,brown
  demand,WOOD_hs0_kW,kW,Nominal WOOD consumption due to space heating,brown
  ,,,,
  demand,SOLAR_ww_kWh,kWh,Solar energy consumption due to hotwater,yellow_light
  demand,SOLAR_ww_MWhyr,MWh/yr,Solar energy consumption due to hotwater,yellow_light
  demand,SOLAR_ww0_kW,kW,Nominal solar energy consumption due to hotwater,yellow_light
  ,,,,
  demand,SOLAR_hs_kWh,kWh,Solar energy consumption due to space heating,yellow
  demand,SOLAR_hs_MWhyr,MWh/yr,Solar energy consumption due to space heating,yellow
  demand,SOLAR_hs0_kW,kW,Nominal solar energy consumption due to space heating,yellow
  ,,,,
  ,,,,
  demand,Epro_MWhyr,MWh/yr,Electricity supplied to industrial processes,brown_lighter
  demand,Edata_MWhyr,MWh/yr,Electricity consumption for data center,blue_lighter
  demand,Eal_MWhyr,MWh/yr,Electricity consumption due to appliances and lighting,green
  
negative.code: Thermal Network,Q_dem_heat,kWh,Aggregated heat supplied by network,blue
  Thermal Network,Q_dem_cool,kWh,Aggregated cooling load supplied by network,blue_light
  Thermal Network,Q_dem_kWh,kWh,Aggregated load supplied by network,blue_light
  
  Operation costs,DH_hs_cost_yr,$USD(2015)/yr,Operation costs due to space heating,orange
  Operation costs,DH_ww_cost_yr,$USD(2015)/yr,Operation costs due to hotwater,orange_lighter
  
  Operation costs,DC_cs_cost_yr,$USD(2015)/yr,Operation costs due to space cooling,blue
  Operation costs,DC_cdata_cost_yr,$USD(2015)/yr,Operation costs due to space heating,blue_light
  Operation costs,DC_cre_cost_yr,$USD(2015)/yr,Operation costs due to hotwater,blue_lighter
  
  Operation costs,NG_ww_cost_yr,$USD(2015)/yr,Operation costs of NG due to hotwater,red_light
  Operation costs,NG_hs_cost_yr,$USD(2015)/yr,Operation costs of NG due to space heating,red
  
  Operation costs,COAL_ww_cost_yr,$USD(2015)/yr,Operation costs of coal due to hotwater,grey
  Operation costs,COAL_hs_cost_yr,$USD(2015)/yr,Operation costs of coal due to space heating,black
  
  Operation costs,WOOD_ww_cost_yr,$USD(2015)/yr,Operation costs of wood due to hotwater,brown_light
  Operation costs,WOOD_hs_cost_yr,$USD(2015)/yr,Operation costs of wood due to space heating,brown
  
  Operation costs,OIL_ww_cost_yr,$USD(2015)/yr,Operation costs of oil due to hotwater,yellow_light
  Operation costs,OIL_hs_cost_yr,$USD(2015)/yr,Operation costs of oil due to space heating,yellow
  
  Operation costs,SOLAR_ww_cost_yr,$USD(2015)/yr,Operation costs due to solar collectors for space heating,yellow_light
  Operation costs,SOLAR_hs_cost_yr,$USD(2015)/yr,Operation costs due to solar collectors for hotwater,yellow
  
  Operation costs,GRID_cost_yr,$USD(2015)/yr,Electricity supply from the grid,green
  Operation costs,GRID_cost_m2yr,$USD(2015)/m2.yr,Electricity supply from the grid,green
  
  Operation costs,PV_cost_yr,$USD(2015)/yr,Electricity supply from PV,green_light
  Operation costs,PV_cost_m2yr,$USD(2015)/yr,Electricity supply from PV,green_light
  
  Installed capacities,CT_kW,kW,Installed capacity of cooling towers,yellow
  Installed capacities,PV_m2,m2,Installed capacity of PV panels,brown
  Installed capacities,SC_FP_m2,m2,Installed capacity of flat-plate solar collectors,brown
  