Extra-high-voltage transformers, 2024: DOE via NLR

DOE put extra-high-voltage transformer lead times at up to 60 months, as cited in the May 2026 NLR report.

Up to 60 months Large power · 2024 · US

“For the extra-high-voltage transformer units, lead time can extend up to 60 months (U.S. Department of Energy 2024) due to complex engineering requirements, which creates significant risks for project scheduling and grid reliability.”
Class on the chart
Large power and substation transformers
Transformer type
Extra-high-voltage large power transformer
Size / class
Extra-high-voltage (EHV)
Region
US
As of
2024
Lead time as stated
Up to 60 months
Publisher
US DOE (2024), cited by the National Laboratory of the Rockies (May 2026)
Original source
U.S. Department of Energy 2024
Source type
government
Verified

Sources

  1. Large Power Transformer Supply Chain Gap Analysis and Domestic Content Strategies for Hydropower Rehabilitation: Supplemental Report (NLR/TP-5700-96742, May 2026) accessed 2026-11-09

Cite this reading

US DOE (2024), cited by the National Laboratory of the Rockies (May 2026), as compiled by Transformer Lead Times: “Extra-high-voltage transformers, 2024: DOE via NLR”. https://transformerleadtimes.com/doe-ehv-2024/ (accessed 9 Nov 2026).

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