       {id: 'other',       column: 1},
 
       {id: 'useful_demand_electric',     column: 2, label: "electricity"},
-      {id: 'useful_demand_heat_cold',   column: 2, label: "heat cold"},
+      {id: 'useful_demand_heat_cold',   column: 2, label: "heat/cold"},
       {id: 'useful_demand_transport',   column: 2, label: "transport"},
       {id: 'useful_demand_non_energetic',   column: 2, label: "non-energetic"},
 

      {left: 'other',      right: 'useful_demand_heat_cold', gquery: 'other_to_useful_demand_heat_cold_in_sankey_ufp', color: 'red'},
      {left: 'other',      right: 'useful_demand_transport', gquery: 'other_to_useful_demand_transport_in_sankey_ufp', color: 'green'},
      {left: 'other',      right: 'useful_demand_non_energetic', gquery: 'other_to_useful_demand_non_energetic_in_sankey_ufp', color: 'black'},
      {left: 'buildings',      right: 'useful_demand_heat_cold', gquery: 'buildings_to_useful_demand_heat_cold_in_sankey_ufp', color: 'red'},
    ]



D3.sankey =
  data :
    nodes: [
      {id: 'coal_and_derivatives',     column: 0, label: "coal"},
      {id: 'oil_and_derivatives',        column: 0, label: "oil"},
      #{id: 'useful_demand',         column: 0},
      #{id: 'non_renewable_waste',         column: 0},
      #{id: 'geo_solar_wind_water_ambient',     column: 0},
      {id: 'natural_gas',        column: 0, label: "gas"},
      {id: 'nuclear',       column: 0, label: "nuclear"},
      {id: 'biomass_products',       column: 0, label: "biomass"},
      {id: 'mixed_flows',       column: 0, label: "mixed flows"},
      {id: 'electricity',       column: 0, label: "renewable electricity"},

      {id: 'households',  column: 1},
      {id: 'buildings',   column: 1},
