21 OPC UA DataTypes 
21.1 EnergySourceEnumeration
This data type is an enumeration of the energy source types. The enumeration values are defined in Table 72.
Table 72 – EnergySourceEnumeration values
| Value | Description |
|---|---|
| Electric_0 | Electrical heating |
| Gas_1 | Gas heating |
| Steam_2 | Steam heating |