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Career overview · SOC 49-9099

Geothermal Technicians

Perform technical activities at power plants or individual installations necessary for the generation of power from geothermal energy sources. Monitor and control operating activities at geothermal power generation facilities and perform maintenance and repairs as necessary. Install, test, and maintain residential and commercial geothermal heat pumps.

Also called: Geothermal Service Technician · I and C Technician (Instrument and Controls Technician) · I and E Technician (Instrumentation and Electrical Technician) · I C and E Technician (Instrumentation, Control, and Electrical Technician) · Operations and Maintenance Technician (O and M Technician) · Operations Technician

Median pay (national)
$48,640
$35,270–$77,150 (10th–90th)
Employed (US)
183,690
BLS OEWS, May 2024
Outlook 2024–34
+2.4%
~21,500 openings/yr
Typical entry
High school diploma or equivalent

What the numbers say

Refit analysis ·Pay for geothermal technicians shows a broad range: the top 10% earn $77,150 versus $35,270 at the bottom 10% — 2.2x. The median of $48,640 leaves roughly 59% of headroom to the 90th percentile, which is where seniority, specialization, and the skills below tend to pay off.
Refit analysis ·Employment is projected to change +2.4% from 2024 to 2034 — about as fast as the 3% all-occupation average. Even so, BLS projects about 21,500 openings a year, mostly to replace workers who retire or change careers.
Refit analysis ·Where you work moves the number a lot. Across the 54 states with released data, Alaska pays the most for this role (median $80,230, +65% vs the national median), while Puerto Rico sits lowest at $26,650 — a 201% spread for the same job title.
Refit analysis ·O*NET rates Monitoring, Reading Comprehension, Critical Thinking as the highest-importance skills here — so a resume aimed at this role should lead with evidence of those, not a generic skills list.

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Top skills employers ask for

Ranked by O*NET importance for this occupation.

  • Monitoring
  • Reading Comprehension
  • Critical Thinking
  • Active Learning
  • Active Listening
  • Writing
  • Speaking
  • Mathematics
  • Science
  • Learning Strategies

What they actually do

Core O*NET tasks for this role.

  • Monitor and adjust operations of geothermal power plant equipment or systems.
  • Prepare and maintain logs, reports, or other documentation of work performed.
  • Collect and record data associated with operating geothermal power plants or well fields.
  • Determine whether emergency or auxiliary systems will be needed to keep properties heated or cooled in extreme weather conditions.
  • Perform pre- and post-installation pressure, flow, and related tests of vertical and horizontal geothermal loop piping.
  • Identify equipment options, such as compressors, and make appropriate selections.
  • Identify and correct malfunctions of geothermal plant equipment, electrical systems, instrumentation, or controls.
  • Adjust power production systems to meet load and distribution demands.
  • Maintain electrical switchgear, process controls, transmitters, gauges, and control equipment in accordance with geothermal plant procedures.
  • Install and maintain geothermal plant electrical protection equipment.

Tools & technology

  • Autodesk AutoCAD
  • SAP software
  • ClimateMaster GeoDesigner
  • Distributed control system DCS
  • Geographic information system GIS systems
  • Geothermal Properties Measurement Tool
  • Thermal Dynamics Ground Loop Design GLD
  • WaterFurnace International Ground Loop Design PREMIER
  • Email software
  • Microsoft Excel
  • Microsoft Office software
  • Microsoft Outlook
  • Microsoft Word

Knowledge areas

  • Mechanical
  • English Language
  • Physics
  • Education and Training
  • Public Safety and Security
  • Chemistry
  • Design
  • Mathematics