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Renewable Energy Technology

The Renewable Energy Technology (RET) program offers premier workforce training through a 9-month Certificate and/or a 2-year Associate of Applied Science (AAS) degree. This nationally-recognized program prepares students to work with automated electronic technologies in a variety of industries including renewable energy, advanced manufacturing, and engineering.

Students practice tower climbing, working in a confined space, and rescue techniques. The climbing tower on the The Dalles Campus is an essential part of the first-year RET curriculum.

The renewable energy field is driving rapid growth in technology, creating jobs which will require thousands of highly skilled workers over the next two decades. Building on a solid foundation in math, writing, and computers, our students learn in a rigorous, hands-on environment and are well-prepared to tackle the challenges of this and other technology-focused industries. RET graduates work for a variety of agencies and companies such as Bonneville Power Administration, Portland General Electric, Cloudcap Technology, Insitu, SDS Lumber, Cardinal Glass, Intel, and many different wind farms and solar installation companies.

How to Apply

The RET program is a limited entry program that begins in September. Application deadline: OPEN UNTIL FILLED

For more information, please contact: Suzanne Burd at or (541) 506-6123. Download an RET Admissions Packet here.

Job Opportunities

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Find out where you can work with an RET degree.

Alumni Testimonials

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Read what RET graduates are saying about the program.


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Learn about financial assistance for RET students.


Course Name Credits Description
EET 111 DC Circuits 5

Covers SI units, engineering notation and prefixes, unit conversion, definitions of conductors and insulators, current, voltage, resistance, power, work/energy, capacity factor, and efficiency. Includes analysis of series, parallel, and series/parallel DC circuits using Ohm's and Kirchoff's Laws and Thevenin and Norton equivalent circuits. Introduces circuit simulation software, lab practices, soldering and de-soldering, schematic reading, circuit construction and troubleshooting, and lab equipment and instrumentation. Includes a 3-hour per week laboratory session. Prerequisite: MTH 95 or placement into MTH 111, WR 115, RD 115, and CAS133. Audit available.

EET 112 AC Circuits 5

Introduction of capacitance, inductance, RC/RL transient response, sinusoidal waveforms, reactance and impedance, AC power, phasor analysis of RLC circuits, node voltage and mesh current analysis, superposition, Thevenin's and Norton's network theorems. Includes a 3-hour per week laboratory. Prerequisite: MTH 111, EET 111. Audit available.

EET 113 AC Power 5

Covers AC power, AC analysis, transformers, 3 phase AC analysis, resonant circuits, and passive filters. Includes a 3-hour per week laboratory session. Prerequisite: EET112 or department approval. Audit available.

EET 141 Electrical Motor/Generator Control 5

Examines electrical circuits, electromagnetism, AC and DC electrical theory, industrial sensors, voltage and relays, motor controls, AC and DC motors and generators, and power distribution systems. Prerequisite: EET 112.

EET 219 Programmable Logic Controllers 3

Introduces the Allen Bradley programmable logic controller, logic circuits, input output, power supplies, data sheets, safety programming, types of processors and software (RSLOGIX5000, RS LINX) memory organization, PLC architecture, ladder logic, and task oriented programming methods. Includes a three hour per week lab. Prerequisites: EET 251. Audit available.

EET 221 Semiconductor Devices and Circuits 5

Examines the characteristics of semiconductor devices and biasing of diodes and transistors. Covers design and analysis of semiconductor circuits using diodes, bipolar transistors, field effect transistors, SCR’s, MOSFET’s, and IGBT’s.  Covers use of transistors as switches. Includes 3 hour lab that explores the application of semiconductor devices, configurations, and computer tools in circuit design, evaluation, and analysis. Prerequisite: EET 113. Audit available.

EET 222 Operational Amplifier Circuits 5

Examines the characteristics and applications of operational amplifiers (op-amps). Develops skills in the design and analysis of op-amp amplifiers, comparators, voltage and current regulators, summers, integrators, and differentiators. Covers calculation and analysis of frequency response of op-amp circuits and application of the op-amp in power supplies and control systems.  Includes a 3-hour per week laboratory in project design, evaluation, documentation, and use computer tools. Prerequisites: EET 221. Audit available.

EET 242 Microcontroller Systems 5

Introduces the student to a popular variety of microcontrollers. Includes the hardware, software, and interfacing of microcontrollers. Emphasizes interfacing the microcontroller to real-world devices such as switches, displays, motors, A/D converters, and sensors through assembly language and C language programming. Includes robotics projects. Prerequisite: EET 252, and EET 222.  Audit available.

EET 251 Digital Electronics 1: Programmable Logic Devices 5

Covers digital systems, binary numbers, combinational logic, expression simplification, and common functions of combinational logic systems using programmable logic devices and fixed function integrated circuits. Introduces data flow and structural modeling using hardware definition language. Includes a 3 hour per week laboratory. Prerequisites: EET 113. Audit available.

EET 252 Digital Electronics 2: Programmable Logic Devices 5

Covers behavioral modeling, sequential logic, latches, flip flops, finite state machines analysis and design, registers, memory, microprocessors, and digital signal processing using programmable logic devices and fixed function integrated circuits. Includes a 3 hour per week laboratory. Prerequisites: EET 251. Audit available.

EET 273 Electronic Control Systems 3

Covers electronic control systems, open-loop and closed-loop, proportional, integral, derivative, PI, and PID control modes, power control devices, relays, transistors, thyristors, and sensors. Includes temperature control, DC motor control, and stepper motor control. Includes lab exercises in temperature control and motor control circuits. Prerequisite: EET 222. Audit available.

MEC 120 Hydraulics 5

Introduces the basic principles of hydraulics and applies these principles to build, maintain and troubleshoot industrial transmission hydraulic circuits. Covers theory, generation, storage, transmission, and usage of hydraulic energy, pressure, and flow. Introduces hydraulic schematics and circuits as well as identification and operation of basic hydraulic components. Introduces basic ladder logic and PLCs to automate, control and modify an electrically controlled hydraulic system with solenoid-operated directional control valves. Includes a 3-hour per week laboratory session. Prerequisite: MTH 65. Audit available.

MEC 121 Mechanical Power 1 5

Focuses on fundamentals of mechanical power, emphasizing the different mechanical components from nuts and bolts to gears, gear boxes, shafts and bearings. Demonstrates the importance of lubrication in maintaining gears and other movable parts. Covers basic alignment and mechanical physics, including aerodynamics. Audit available.

MEC 122 Mechanical Power 2 5

Introduces the process of power generation. Covers construction techniques involving cranes, rigging, and mechanical alignment procedures. Includes the disassembly and assembly of a functioning power generating turbine and participation in a safety workshop at a local wind farm. Prerequisites: WR 115, RD 115 and MTH 20 or equivalent placement test scores; MEC 121. Audit available.

RET 101 Introduction to Wind Turbine Operations 2

Introduces the basic concepts, terminology, and technology used by industrial scale horizontal axis wind turbine generators to capture wind energy and transform it into electrical energy. Prerequisites: EET 111. Audit available.

RET 102 Alternate Energy Resources 1

Introduces potential alternatives to carbon-based power generation (coal and oil) including biomass/biofuel, geothermal, hydrogen and fuel cells, hydroelectric, ocean wave, solar, wind, and nuclear energy. Discusses the potential role of clean coal as a bridge to implementing long-term environmental solutions.Explores micro-grids (community-based renewable power generation systems) as an alternative to utility-scale technologies. Audit available.

RET 103 Wind Turbine Safe Access and Rescue 1

Provides the skills and information necessary to safely access and work at height on onshore wind turbines. Includes trainingin the use, care, and selection of emergency rescue and evacuation devices.

RET 223 Power Generation 5

Introduces the principles of distributed and centralized power generation. Introduces motor/generator principles for asynchronous, synchronous, DFIG, and PM synchronous generators. Discusses photovoltaic module and utility interactive inverter specifications, array sizing, and orientation.  Prepares individuals to perform solar resource assessment and solar site analysis using publicly available resources, instrumentation, and software simulation. Introduces power electronics circuits to perform rectification/inversion functions. Includes a 3-hour per week laboratory session. Prerequisite: EET222. Audit available.

SAF 188 Industrial Safety and OSHA 10 2

Introduces safety practices in the electronics industry and covers industry OSHA-10 Construction Safety Training. Includes handling hazardous materials; safe use of flammable and combustible liquids; types of Personal Protective Equipment; fall protection; crane, ladder and scaffolding safety; safe use of hand and power tools. An OSHA 10 card will be earned through the satisfactory, in-class completion of OSHA 10 construction safety and health requirements.

Faculty and Staff

Namesort icon Title Email Phone
Jim Pytel Jim Pytel Renewable Energy Technology Instructor (541) 506-6000, ext. 7157
Bill Marsh Renewable Energy Technology Instructor (541) 506-6181
Tom Lieurance Tom Lieurance Renewable Energy Technology Instructor (541) 506-6175
Candy Gruner
Computer Applications/Office Systems Instructor
Renewable Energy Technology Instructor
Suzanne Burd Community Education Coordinator/RET Program Coordinator (541) 506-6123