It’s hard not to notice how much has changed in the large power transformer world this year. Demand kept rising, projects kept increasing, and the grid continued modernizing. None of that was a surprise, but what did evolve this year was the understanding of what it actually takes to keep these big, complicated projects moving.

The lessons from 2025 weren’t about discovering anything brand new. Instead, they were about seeing what truly matters when the stakes are high and the schedules are unforgiving.

Here are the major lessons this year had to offer and what they mean as we head into 2026.

Lesson 1: Earlier Coordination Made Projects Run Smoother

One of the most noticeable changes this year was just how much earlier teams started getting aligned. Longer project cycles are nothing new for LPTs, but as demand intensified, early communication with core partners became incredibly valuable.

That earlier alignment helped everyone operate from the same playbook by answering questions up front and reducing the surprises that typically cause delays. Everyone had more clarity about what needed to happen and when, which made handoffs smoother and timelines more predictable. As the industry faces another year of tight production windows and heavy workloads, this proactive coordination will only grow more vital.

Lesson 2: Material Stability Was a Major Advantage

While steady demand for electrical steel has been expected for years, 2025 highlighted just how important reliable material access has become. Companies that built strong alignment with their electrical steel and core partners, planning earlier and communicating more frequently, were able to maintain consistent production.

Instead of reacting to material constraints, teams that planned ahead were able to move forward with confidence, knowing core production was sequenced with their build needs. When planning and production are aligned, it creates a smoother path from the first cut to final assembly.

In a year where demand remained strong, that kind of predictability became a real advantage, and it will only grow more important in 2026.

Lesson 3: LPT Demand Isn’t Slowing Any Time Soon

If anyone entered 2025 thinking that demand for large power transformers might cool off, this year proved otherwise. The factors driving growth not only continued but became even more visible:

1. Data centers kept expanding at an incredible pace.

The growth of AI and digital infrastructure pushed regional capacity. Some campuses now require hundreds of megawatts of support, which translates into more (and larger) transformers.

2. Industrial reshoring kept building momentum.

Manufacturing investments across the U.S. and Mexico continued rising, increasing electricity demand in regions that haven’t seen this level of industrial load in decades.

3. Renewable integration reshaped grid needs.

New generations require new interconnections, and new interconnections require transformers.

On top of all that, the aging grid remains a major factor, as many LPTs in service today are already 25 to 40 years old. Replacement cycles are only just beginning.

The takeaway is that these aren’t temporary surges. They’re long-term shifts that will continue shaping 2026 and beyond.

Lesson 4: Efficiency and Lifecycle Performance Became Central

2025 was also the year when long-term performance truly entered the spotlight. With more transformers entering service each year and staying there for decades, maximizing efficiency and reliability from day one became a focal point. This led to even more focus on electrical steel optimization, lamination quality, and core performance compared to previous years.

When a transformer remains in service for that many years, even small improvements in efficiency result in meaningful operational and economic gains. Core manufacturers who invested in better lamination and production consistency saw considerable advantages in both quality and customer confidence.

Lesson 5: Precision and Material Utilization Made a Real Impact

This lesson hit home for anyone involved in core and lamination production: precision mattered more than ever in 2025. Scrap reduction, cutting accuracy, and assembly consistency became key performance levers. Instead of simply aiming to meet minimum requirements, companies took a harder look at how to improve them. Every pound of electrical steel carried greater value this year, and that made efficient core production incredibly important.

Accurate stacking played an important role in keeping builds on track, helping cores move through testing and installation smoothly. Consistent production supported clean handoffs into assembly, and strong repeatability meant teams could stay focused on progress. The result was a year where control over the smallest technical details contributed directly to meeting ambitious delivery timelines.

Looking Ahead to 2026

If 2025 was the year the industry found clarity, 2026 will be the year it puts that clarity to work.

As we look to the year ahead, we’re keeping a few key points in mind:

• Demand isn’t slowing.
  Grid load, industrial growth, and data infrastructure will continue shaping large power transformer lifespans and needs.
• Early coordination will matter even more.
  Planning ahead means fewer delays and smoother project execution.
• Material stability will stay high on the priority list.
  Reliable material supply will remain a key differentiator.
• Efficiency expectations will keep rising.
  Large power transformers require quality components that allow them to perform better and last longer.

At the center of all of it remains a simple truth: great large power transformers start with great cores, and great cores start with Corefficient. That’s our focus heading into 2026.