Power Generation

This is what we do. These projects are massive and complicated. That’s why the major utilities rely on Harder for safe, quality construction and installation.

We Tackle the Tough Stuff

We specialize in power generation—the complex parts like turbine installs, centerline erection, and high-pressure pipeline construction. Nationally recognized as an industry leader, we leverage capabilities few others possess. Every aspect of construction demands precision execution, from materials handling to welding technique. That’s exactly what we deliver.

12 Wärtsilä 50SG

At PGE, Harder installed 12 Wärtsilä 50SG reciprocating engines–the largest gas engine in the world–each with an output of 18 MW

Experts in All Methods of Power Generation Construction

Harder specializes in the fabrication and installation of all balance plant piping and turbine installations/center line erections for the Power Generation industry. We also self-perform all civil, foundation, and structural steel erection work associated with the setting and aligning of all other associated equipment.

As experts in all plant piping, Harder has ASME-qualified welding processes and procedures for virtually all materials including chrome-moly P11 through P91. Harder is also an OEM fabricator of process skids for the power generation industry.

Power Generation Services

Harder Mechanical offers a wide range of comprehensive services to meet the needs of our clients. Our Power Generation clients count on us to deliver a high-quality installation of their process systems.

Concrete Installation

A rock-solid foundation for your project—any size, any place. Expert prep and pour for performance you can count on.


End-to-end mechanical installations, delivering the systems you need and the above-and-beyond service you deserve.

Design Services

In-house design-assist services lower costs, boost constructability, and reduce overall schedules for success from the very start.

Equipment Installation

Decades of experience with the most demanding equipment challenges means we get the job done—and we mean the whole job.


Specializing in complete single-source piping solutions that achieve optimal results. You name it, we build it.


Sophisticated, not complicated, for peak performance at any scale. Proven processes keep your projects on track.

Process Piping

Powering innovation and infrastructure for every industry. Specialized systems you can rely on for the long haul.

Service Department

Our dedicated service team will work with you to create a customized maintenance plan that satisfies the needs of your facility.

Sheet Metal

Harder's sheet metal division provides complete HVAC and industrial duct fabrication and installation for all major industries.

Skids & Modularization

Prefabrication reduces downtime and labor costs while minimizing the impact on your operations, no matter where you’re located.

Structural Steel

Strong, safe, secure—infrastructure that holds to the highest standards. Discover workmanship backed by 80 years of experience.

Tank Installation & Modification

Smooth, disruption-free service for every phase of your project. Our expertise guarantees safety and success.

Virtual Design & Construction

State-of-the-art tech for designs that deliver. We combine leading-edge tools with decades of experience to envision and execute with excellence.


Port Westward Unit 2

At PGE Port Westward, Harder self-performed everything from the concrete pour to process piping.

Map of Harder locations

Where We Are

From our headquarters in Oregon to our newest offices in Texas, our teams are ready to deliver the highest quality in mechanical construction services wherever they’re needed.

Let Us Join You

Our Power Generation industry experts are ready to partner with you on your next project.