A large power transformer is wound by hand, built to specification, in factories running at 98% of global capacity. When one is destroyed, the replacement enters a queue averaging 128 to 144 weeks. The U.S. imports roughly 80%. One company makes the specialized core steel domestically.
Everybody got in line at once. Storm-damaged utilities, data centers chasing 125 gigawatts of new load, renewable interconnection, EV charging buildout, all bidding on the same factory slots while April's restructured tariffs raised every input cost. Two billion in new domestic factory capacity has been announced. It comes online in 2028.
Some argue the shortage is partly a procurement coordination problem, and they may be right. It doesn't help the co-op whose substation transformer blew this spring.
Lead times 128 wks standard, 144 wks generator step-up — Wood Mackenzie Q2 2025
Price Up 60–80% since 2020
Core steel Cleveland-Cliffs: sole U.S. producer of grain-oriented electrical steel. Prices nearly doubled since 2020
Demand Generator step-up orders +274%, 2019–2025. Billion-dollar weather events: 8 in 2014, 27 in 2024
Tariffs 50% duty on copper and steel inputs at full customs value. 15% transitional rate on finished imports expires Dec. 31, 2027, then reverts to 25%
New capacity ~$2B announced. Major builds (Hitachi Energy, Siemens Energy) online 2028
Contested Broker Patrick Tarver: "There is not a shortage." Analysts counter that large units are highly customized and testing-protocol-intensive