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Table 2 Differences between central power plants and wellhead power plants [2, 56]

From: Central versus wellhead power plants in geothermal grid electricity generation

  Parameters Central power plant Wellhead power plant
1 Setup period Takes more than 2 years to set up Takes between 3 and 6 months
2 Customization Not site specific Customized to specific site conditions
3 Number of wells Fed by multiple steam wells Normally operate on a single well
4 Capacity factor Higher capacity factor Lower capacity factor
5 Operating efficiency Higher efficiency Lower efficiency
6 Power evacuation High voltage Can use low voltage
7 Non-condensable gases Well dependent Well dependent
8 Flexibility and portability Not flexible and not portable Flexible and portable
9 Specific steam consumption Low specific steam consumption High specific steam consumption