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Date: 10/23/2025

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.

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    Work Activities

    Work Activities

    • Backfill piping trenches to protect pipes from damage.
    • Install and maintain geothermal system instrumentation or controls.
    • Prepare newly installed geothermal heat systems for operation by flushing, purging, or other actions.
    • Integrate hot water heater systems with geothermal heat exchange systems.
    • Apply coatings or operate systems to mitigate corrosion of geothermal plant equipment or structures.
    • Determine whether emergency or auxiliary systems will be needed to keep properties heated or cooled in extreme weather conditions.
    • Weld piping, such as high density polyethylene (HDPE) piping, using techniques such as butt, socket, side-wall, and electro-fusion welding.
    • Identify and correct malfunctions of geothermal plant equipment, electrical systems, instrumentation, or controls.
    • Adjust power production systems to meet load and distribution demands.
    • Calculate heat loss and heat gain factors for residential properties to determine heating and cooling required by installed geothermal systems.
    • Test water sources for factors, such as flow volume and contaminant presence.
    • Determine the type of geothermal loop system most suitable to a specific property and its heating and cooling needs.
    • Operate equipment, such as excavators, backhoes, rock hammers, trench compactors, pavement saws, grout mixers or pumps, geothermal loop reels, and coil tubing units (CTU).
    • Identify equipment options, such as compressors, and make appropriate selections.
    • Install and maintain geothermal plant electrical protection equipment.
    • Prepare and maintain logs, reports, or other documentation of work performed.
    • Install and maintain geothermal plant electrical protection equipment.
    • Maintain, calibrate, or repair plant instrumentation, control, and electronic devices in geothermal plants.
    • Maintain electrical switchgear, process controls, transmitters, gauges, and control equipment in accordance with geothermal plant procedures.
    • Maintain, calibrate, or repair plant instrumentation, control, and electronic devices in geothermal plants.
    • Install, maintain, or repair ground or water source-coupled heat pumps to heat and cool residential or commercial building air or water.
    • Install, maintain, or repair ground or water source-coupled heat pumps to heat and cool residential or commercial building air or water.
    • Dig trenches for system piping to appropriate depths and lay piping in trenches.
    • Dig trenches for system piping to appropriate depths and lay piping in trenches.
    • Prepare and maintain logs, reports, or other documentation of work performed.
    • Perform pre- and post-installation pressure, flow, and related tests of vertical and horizontal geothermal loop piping.
    • Monitor and adjust operations of geothermal power plant equipment or systems.
    • Design and lay out geothermal heat systems according to property characteristics, heating and cooling requirements, piping and equipment requirements, applicable regulations, or other factors.
    • Install and maintain geothermal system instrumentation or controls.
    • Identify and correct malfunctions of geothermal plant equipment, electrical systems, instrumentation, or controls.
    • Collect and record data associated with operating geothermal power plants or well fields.

    Skills

    • Learning Strategies

      Using the best training or teaching strategies for learning new things.

    • Mathematics

      Using math to solve problems.

    • Installation

      Installing equipment, machines, wiring, or computer programs.

    • Judgment and Decision Making

      Thinking about the pros and cons of different options and picking the best one.

    • Speaking

      Talking to others.

    • Operations Analysis

      Figuring out what a product or service needs to be able to do.

    • Negotiation

      Bringing people together to solve differences.

    • Active Learning

      Figuring out how to use new ideas or things.

    • Service Orientation

      Looking for ways to help people.

    • Time Management

      Managing your time and the time of other people.

    • Instructing

      Teaching people how to do something.

    • Management of Financial Resources

      Making spending decisions and keeping track of what is spent.

    • Persuasion

      Talking people into changing their minds or their behavior.

    • Operations Monitoring

      Watching gauges, dials, or display screens to make sure a machine is working.

    • Science

      Using scientific rules and strategies to solve problems.

    • Programming

      Writing computer programs.

    • Systems Analysis

      Figuring out how a system should work and how changes in the future will affect it.

    • Writing

      Writing things for co-workers or customers.

    • Social Perceptiveness

      Understanding people's reactions.

    • Technology Design

      Making equipment and technology useful for customers.

    • Repairing

      Repairing machines or systems using the right tools.

    • Management of Personnel Resources

      Selecting and managing the best workers for a job.

    • Troubleshooting

      Figuring out what is causing equipment, machines, wiring, or computer programs to not work.

    • Management of Material Resources

      Managing equipment and materials.

    • Critical Thinking

      Thinking about the pros and cons of different ways to solve a problem.

    • Systems Evaluation

      Measuring how well a system is working and how to improve it.

    • Reading Comprehension

      Reading work-related information.

    • Complex Problem Solving

      Noticing a problem and figuring out the best way to solve it.

    • Equipment Maintenance

      Planning and doing the basic maintenance on equipment.

    • Active Listening

      Listening to others, not interrupting, and asking good questions.

    • Monitoring

      Keeping track of how well people and/or groups are doing in order to make improvements.

    • Coordination

      Changing what is done based on other people's actions.

    • Quality Control Analysis

      Testing how well a product or service works.

    • Operation and Control

      Using equipment or systems.

    • Equipment Selection

      Deciding what kind of tools and equipment are needed to do a job.

    WorkKeys®

    Applied Math
    4
    Workplace Documents
    4
    Graphic Literacy
    4

    Abilities

    • Multilimb Coordination

      Using your arms and/or legs together while sitting, standing, or lying down.

    • Written Expression

      Communicating by writing.

    • Category Flexibility

      Grouping things in different ways.

    • Written Comprehension

      Reading and understanding what is written.

    • Far Vision

      Seeing details that are far away.

    • Depth Perception

      Deciding which thing is closer or farther away from you, or deciding how far away it is from you.

    • Sound Localization

      Noticing the direction that a sound came from.

    • Hearing Sensitivity

      Telling the difference between sounds.

    • Near Vision

      Seeing details up close.

    • Speed of Limb Movement

      Quickly moving your arms and legs.

    • Dynamic Strength

      Exercising for a long time without your muscles getting tired.

    • Spatial Orientation

      Knowing where things are around you.

    • Information Ordering

      Ordering or arranging things.

    • Originality

      Creating new and original ideas.

    • Number Facility

      Adding, subtracting, multiplying, or dividing.

    • Response Orientation

      Quickly deciding if you should move your hand, foot, or other body part.

    • Reaction Time

      Quickly moving your hand, finger, or foot based on a sound, light, picture or other command.

    • Wrist-Finger Speed

      Making fast, simple, repeated movements of your fingers, hands, and wrists.

    • Speed of Closure

      Quickly knowing what you are looking at.

    • Flexibility of Closure

      Seeing hidden patterns.

    • Perceptual Speed

      Quickly comparing groups of letters, numbers, pictures, or other things.

    • Oral Expression

      Communicating by speaking.

    • Visualization

      Imagining how something will look after it is moved around or changed.

    • Memorization

      Remembering words, numbers, pictures, or steps.

    • Deductive Reasoning

      Using rules to solve problems.

    • Mathematical Reasoning

      Choosing the right type of math to solve a problem.

    • Inductive Reasoning

      Making general rules or coming up with answers from lots of detailed information.

    • Speech Clarity

      Speaking clearly.

    • Dynamic Flexibility

      Quickly and repeatedly bending, stretching, twisting, or reaching out with your body, arms, and/or legs.

    • Gross Body Coordination

      Moving your arms, legs, and mid-section together while your whole body is moving.

    • Visual Color Discrimination

      Noticing the difference between colors, including shades and brightness.

    • Speech Recognition

      Recognizing spoken words.

    • Gross Body Equilibrium

      Keeping your balance or staying upright.

    • Night Vision

      Seeing at night or under low light.

    • Extent Flexibility

      Bending, stretching, twisting, or reaching with your body, arms, and/or legs.

    • Auditory Attention

      Paying attention to one sound while there are other distracting sounds.

    • Trunk Strength

      Using your lower back and stomach.

    • Rate Control

      Changing when and how fast you move based on how something else is moving.

    • Static Strength

      Lifting, pushing, pulling, or carrying.

    • Explosive Strength

      Jumping, sprinting, or throwing something.

    • Control Precision

      Quickly changing the controls of a machine, car, truck or boat.

    • Finger Dexterity

      Putting together small parts with your fingers.

    • Time Sharing

      Doing two or more things at the same time.

    • Oral Comprehension

      Listening and understanding what people say.

    • Glare Sensitivity

      Seeing something even if there is a glare or very bright light.

    • Peripheral Vision

      Seeing something to your side when your are looking ahead.

    • Arm-Hand Steadiness

      Keeping your arm or hand steady.

    • Selective Attention

      Paying attention to something without being distracted.

    • Manual Dexterity

      Holding or moving items with your hands.

    • Problem Sensitivity

      Noticing when problems happen.

    • Fluency of Ideas

      Coming up with lots of ideas.

    • Stamina

      Exercising for a long time without getting out of breath.

    Knowledge

    • Economics and Accounting

      Knowledge of economic and accounting principles and practices, the financial markets, banking, and the analysis and reporting of financial data.

    • Psychology

      Knowledge of human behavior and performance; individual differences in ability, personality, and interests; learning and motivation; psychological research methods; and the assessment and treatment of behavioral and affective disorders.

    • Geography

      Knowledge of principles and methods for describing the features of land, sea, and air masses, including their physical characteristics, locations, interrelationships, and distribution of plant, animal, and human life.

    • Foreign Language

      Knowledge of the structure and content of a foreign (non-English) language including the meaning and spelling of words, rules of composition and grammar, and pronunciation.

    • Transportation

      Knowledge of principles and methods for moving people or goods by air, rail, sea, or road, including the relative costs and benefits.

    • Telecommunications

      Knowledge of transmission, broadcasting, switching, control, and operation of telecommunications systems.

    • Therapy and Counseling

      Knowledge of principles, methods, and procedures for diagnosis, treatment, and rehabilitation of physical and mental dysfunctions, and for career counseling and guidance.

    • Law and Government

      Knowledge of laws, legal codes, court procedures, precedents, government regulations, executive orders, agency rules, and the democratic political process.

    • Personnel and Human Resources

      Knowledge of principles and procedures for personnel recruitment, selection, training, compensation and benefits, labor relations and negotiation, and personnel information systems.

    • Production and Processing

      Knowledge of raw materials, production processes, quality control, costs, and other techniques for maximizing the effective manufacture and distribution of goods.

    • Building and Construction

      Knowledge of materials, methods, and the tools involved in the construction or repair of houses, buildings, or other structures such as highways and roads.

    • Education and Training

      Knowledge of principles and methods for curriculum and training design, teaching and instruction for individuals and groups, and the measurement of training effects.

    • Fine Arts

      Knowledge of the theory and techniques required to compose, produce, and perform works of music, dance, visual arts, drama, and sculpture.

    • Philosophy and Theology

      Knowledge of different philosophical systems and religions. This includes their basic principles, values, ethics, ways of thinking, customs, practices, and their impact on human culture.

    • Public Safety and Security

      Knowledge of relevant equipment, policies, procedures, and strategies to promote effective local, state, or national security operations for the protection of people, data, property, and institutions.

    • Computers and Electronics

      Knowledge of circuit boards, processors, chips, electronic equipment, and computer hardware and software, including applications and programming.

    • Mathematics

      Knowledge of arithmetic, algebra, geometry, calculus, statistics, and their applications.

    • Physics

      Knowledge and prediction of physical principles, laws, their interrelationships, and applications to understanding fluid, material, and atmospheric dynamics, and mechanical, electrical, atomic and sub-atomic structures and processes.

    • Chemistry

      Knowledge of the chemical composition, structure, and properties of substances and of the chemical processes and transformations that they undergo. This includes uses of chemicals and their interactions, danger signs, production techniques, and disposal methods.

    • Engineering and Technology

      Knowledge of the practical application of engineering science and technology. This includes applying principles, techniques, procedures, and equipment to the design and production of various goods and services.

    • Medicine and Dentistry

      Knowledge of the information and techniques needed to diagnose and treat human injuries, diseases, and deformities. This includes symptoms, treatment alternatives, drug properties and interactions, and preventive health-care measures.

    • Administrative

      Knowledge of administrative and office procedures and systems such as word processing, managing files and records, stenography and transcription, designing forms, and workplace terminology.

    • Administration and Management

      Knowledge of business and management principles involved in strategic planning, resource allocation, human resources modeling, leadership technique, production methods, and coordination of people and resources.

    • Sales and Marketing

      Knowledge of principles and methods for showing, promoting, and selling products or services. This includes marketing strategy and tactics, product demonstration, sales techniques, and sales control systems.

    • Design

      Knowledge of design techniques, tools, and principles involved in production of precision technical plans, blueprints, drawings, and models.

    • Sociology and Anthropology

      Knowledge of group behavior and dynamics, societal trends and influences, human migrations, ethnicity, cultures, and their history and origins.

    • English Language

      Knowledge of the structure and content of the English language including the meaning and spelling of words, and rules of composition and grammar.

    • History and Archeology

      Knowledge of historical events and their causes, indicators, and effects on civilizations and cultures.

    • Communications and Media

      Knowledge of media production, communication, and dissemination techniques and methods. This includes alternative ways to inform and entertain via written, oral, and visual media.

    • Mechanical

      Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

    • Biology

      Knowledge of plant and animal organisms, their tissues, cells, functions, interdependencies, and interactions with each other and the environment.

    • Food Production

      Knowledge of techniques and equipment for planting, growing, and harvesting food products (both plant and animal) for consumption, including storage/handling techniques.

    • Customer and Personal Service

      Knowledge of principles and processes for providing customer and personal services. This includes customer needs assessment, meeting quality standards for services, and evaluation of customer satisfaction.

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    Pay

    • Ohio Annual Salary 47310/yr
    • Typical Salary
    • Ohio Hourly Wage 22.75/hr
    • Typical Hourly Wage

    Ohio Employment Trends

    • Currently Employed 5,390
    • Yearly Projected Openings 510

    Typical Education

    Personality

    Realistic: People interested in this work like activities that include practical, hands-on problems and solutions.They do well at jobs that need:
    • Attention to Detail
    • Dependability
    • Analytical Thinking
    • Integrity
    • Adaptability/Flexibility
    • Initiative

    Tools

    • Adjustable wrenches
    • Air samplers or collectors
    • Claw hammer
    • Coiled tubing units
    • Compactors
    • Deburring tool
    • Desktop computers
    • Flash butt welding machine
    • Grouting pump
    • Land drilling rigs
    • Locking pliers
    • Logging instruments for water wells
    • Microcontrollers
    • Notebook computers
    • Personal computers
    • Pipe bending tools
    • Pipe or tube cutter
    • Pipe vises
    • Pipe wrenches
    • Plaster or mortar mixers
    • Pneumatic impact wrenches
    • Power saws
    • Protective gloves
    • Pyrometers
    • Ratchets
    • Respirators
    • Safety glasses
    • Screwdrivers
    • Socket sets
    • Specialty wrenches
    • Spot welding machine
    • Stripping tools
    • Track excavators
    • Wire cutters

    Technology

    • Analytical or scientific software
    • Computer aided design CAD software
    • Electronic mail software
    • Enterprise resource planning ERP software
    • Geographic information system
    • Industrial control software
    • Office suite software
    • Spreadsheet software
    • Word processing software
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