# Eaton Expands North American Power Transformer Capacity with $160 Million Investment to Meet 34.5 kV Data Center Demand

> Power management company Eaton has announced a $160 million manufacturing expansion across its Nacogdoches (Texas) and Waukesha (Wisconsin) transformer plants, significantly scaling production of three-phase pad-mounted and substation transformers rated up to 34.5 kV and 15 MVA.

- **Publish Date:** 2026-09-19
- **Category:** transformers-grid
- **Reading Time:** 4 min
- **Original Source Citation:** [Eaton Corporation Investor Relations](https://www.eaton.com/us/en-us/company/news-insights/news-releases/2026/eaton-expands-transformer-manufacturing-capacity-september-2026.html)
- **Tags:** Eaton, Power Transformer, Data Centers, 34.5 kV, Manufacturing Capacity, Substations, North America
- **Canonical URL:** https://voltformer.com/news/eaton-invests-160m-expand-power-transformer-production-data-center-growth
- **Markdown Source:** https://voltformer.com/news/eaton-invests-160m-expand-power-transformer-production-data-center-growth.md

## Scaling Up for Hyper-Density Artificial Intelligence Campuses

Surging demand from hyperscale cloud and AI data center developers has driven lead times for medium-voltage step-down transformers past 100 weeks.

Eaton’s expanded production lines feature automated coil winding, advanced vacuum pressure impregnation (VPI), and laser-guided core assembly, shortening standard delivery cycles by 35% for standardized utility-grade designs.

## Biodegradable Dielectric Fluid and Smart Monitoring Standardization

The new manufacturing cells will produce units factory-filled with environmentally friendly FR3 natural ester fluid, increasing thermal headroom and fire safety for high-density indoor and outdoor data center substations.

All manufactured units incorporate factory-integrated digital sensors for real-time dissolved gas analysis, tank pressure, and top-oil thermometry.

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