diff --git a/definitions/variable/grids infrastructure/gas_grid.yaml b/definitions/variable/grids infrastructure/gas_grid.yaml
new file mode 100644
index 0000000..f12c34d
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+++ b/definitions/variable/grids infrastructure/gas_grid.yaml	
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+- Capacity|Natural Gas|Regasifier:
+        description: Regasifier upperbound capacity
+        unit: GW
+- Capacity|Hydrogen|Regasifier:
+        description: Regasifier upperbound capacity
+        unit: GW
+- Capacity|Natural Gas|Storage|Aquifer:
+        description: Aquifer storage capacity
+        unit: GWh
+- Capacity|Natural Gas|Storage|Salt Cavern:
+        description: Salt Cavern storage capacity
+        unit: GWh
+- Capacity|Natural Gas|Storage|Depleted Field:
+        description: Depleted Field storage capacity
+        unit: GWh
+- Injection Rate|Natural Gas|Storage|Aquifer:
+        description: Aquifer storage Injection Rate
+        unit: GW
+- Injection Rate|Gas|Storage|Salt Cavern:
+        description: Salt Cavern storage Injection Rate
+        unit: GW
+- Injection Rate|Gas|Storage|Depleted Field:
+        description: Depleted Field storage Injection Rate
+        unit: GW
+- Extraction Rate|Gas|Storage|Aquifer:
+        description: Aquifer storage Extraction Rate
+        unit: GW
+- Extraction Rate|Gas|Storage|Salt Cavern:
+        description: Salt Cavern storage Extraction Rate
+        unit: GW
+- Extraction Rate|Gas|Storage|Depleted Field:
+        description: Depleted Field storage Extraction Rate
+        unit: GW
+- Network|Gas|Natural Gas|Capacity:
+        description: Capacity of the pipeline
+        unit: GW/h
+- Network|Gas|Hydrogen|Capacity:
+        description: Capacity of the pipeline
+        unit: GW/h
+- Network|Gas|Hydrogen|Length:
+        description: Length of the pipeline
+        unit: km
+- Network|Gas|Natural Gas|Length:
+        description: Length of the pipeline
+        unit: km
+- Network|Gas|Natural Gas|Offshore Length:
+        description: Length of the offshore part of the pipeline
+        unit: km
+- Network|Gas|Hydrogen|Offshore Length:
+        description: Length of the offshore part of the pipeline
+        unit: km
+- Network|Gas|Hydrogen|Reversible:
+        description: If the carrier can flow in both directions
+        unit:
+- Network|Gas|Natural Gas|Reversible:
+        description: If the carrier can flow in both directions
+        unit:
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