Powering Tomorrow: Arnette Pattern Company’s Fabrication Expertise in the Heart of the Energy Boom

Deep in the industrial heartland of Granite City, Illinois, Arnette Pattern Company operates two state-of-the-art facilities dedicated to precision metal fabrication. While our capabilities span industries, one sector stands out as both a cornerstone of our business and a beacon for the future: the power industry. From massive transformer components to critical generator assemblies, we deliver fully finished, start-to-finish fabrications that keep America’s grid strong, reliable, and ready for the next generation of energy demand.

And with the power sector surging forward on trillions in investment, the outlook for fabricators like us—rooted in the Midwest and built on American steel—has never been more electrifying.

The Power Sector Is Booming—And It Needs Fabricators Like Never Before

The data is undeniable. Global energy investment is projected to reach $3.3 trillion in 2025, according to the International Energy Agency, with power infrastructure leading at $1.5 trillion—outpacing oil, gas, and coal combined by 50%. Renewable energy alone saw $386 billion in the first half of 2025, per BloombergNEF, with solar and wind capacity now growing faster than electricity demand itself.

But this isn’t just about clean energy. Grid modernization, data center expansion, and industrial electrification are driving unprecedented demand for heavy-duty, high-precision fabricated components. LandGate forecasts $1.4 trillion in U.S. energy infrastructure spending through 2030—including over 28,000 miles of new transmission lines and thousands of upgraded substations.

That’s where fabrication shops like Arnette thrive.

Start-to-Finish Fabrication: Built for Power, Delivered with Precision

At our two Granite City-area facilities, we don’t just cut and weld—we own the entire process. Every power component we produce is engineered, fabricated, tested, finished, and shipped 100% in-house:

• Design & Cutting: Complex patterns are developed in CAD, then precision-cut using our high-definition plasma burn tables and advanced waterjet systems—ensuring zero distortion and perfect fit-up on thick plate up to several inches.
• Assembly & Welding: Heavy structural frames, outer enclosures, and internal support kits are welded by certified technicians using robotic and manual processes to AWS and ASME standards.
• Testing & Quality: Full dimensional inspection, weld integrity testing, and pressure checks are performed on-site—no shortcuts, no surprises.
• Finishing: Components go through shot blasting to a clean SP-10 surface, followed by multi-coat industrial paint systems applied in controlled environments for lasting corrosion protection and a flawless appearance.

The result? Ready-to-install power components that meet the toughest utility and OEM specifications.

Key Power Projects We Deliver:

• Large transformer outer core boxes—massive steel enclosures that house the heart of high-voltage transformers
• Internal frame kits—precision-welded structural assemblies that ensure stability under extreme electrical and thermal loads
• Generator end bells—critical rotating components for industrial-scale power generation equipment

These aren’t off-the-shelf parts. They’re custom-engineered, heavy-fabricated solutions built to withstand decades of service in substations, power plants, and renewable installations nationwide.

Why the Power Sector Is a Fabricator’s Dream

This isn’t a passing trend—it’s a structural shift. The EIA’s Annual Energy Outlook 2025 projects steady growth in U.S. electricity demand through 2050, fueled by:

• AI data centers adding 10%+ to national power load by 2030
• Widespread electrification of transport, heating, and industry
• Replacement of aging infrastructure (over 50% of U.S. substations are 40+ years old)

Deloitte’s 2025 Power Outlook calls it a “demand-driven, de-risked market”—meaning long-term contracts, stable pricing, and predictable workflows for domestic fabricators.

For shops with heavy plate capability, welding expertise, and finishing capacity—like Arnette—this translates to full order books and multi-year backlog visibility.

Built in the Heartland, Powering the Nation

We didn’t chase the power boom—it found us. Our decades of experience in heavy fabrication, combined with strategic investments in waterjet, plasma, robotic welding, and finishing systems, positioned us perfectly to serve this high-growth sector.

Today, components rolling off our lines in Granite City are installed in substations from the Midwest to the Gulf Coast, supporting everything from renewable integration to grid resilience.

And we’re just getting started.

The Future Is Fabricated—And It’s Bright

To fabrication shops across the country: the power sector isn’t going anywhere—it’s expanding. With trillions in infrastructure spending locked in, the need for precision-cut, expertly welded, fully finished components will only grow.

At Arnette Pattern Company, we’re all in. Two facilities. Full vertical integration. A relentless focus on quality. And a front-row seat to America’s energy evolution.

The grid of tomorrow is being built today—plate by plate, weld by weld, right here in Granite City.