- Volcanic Geothermal Systems production of electricity would need to be connected to either utility grids or local microgrids. Depending on the electricity production and the electricity demand details, a range of power and voltage may be utilised.
- Examples of Geothermal Power Plant production can range from a few MW up to over 100 MW. Multiple individual power generators can be installed or larger units can also be utilised if installation, operational, and maintenance constraints permit.
- The site power generation equipment output rated voltage could be as low as 400V but for medium to large machines it could be between 6.6kV to 11kV. Some large scale systems directly connected to HV grids have been 20kV, 24kV, or even up to 36kV.
- Grid distribution line rated voltages could be from 33kV MV up to 132kV HV depending on the local power demand requirements / characteristics and distances to power users.
- Adjacent to a typical medium scale geothermal project site would be a transfer station that includes equipment buildings/containers, communications systems, control systems monitoring and controlling electrical equipment, metering equipment, circuit breakers, medium-voltage switchgear, transformer(s), conductor and IPS aluminum tube busbars, lightening arresters, and earthing systems.
- The detailed requirements of either the utility grid or local microgrid operators would govern the equipment specifications and selection. For remote locations, redundancy would be important as well as security and safety systems to protect communities and the environment.
