Transformer lead time data

60 observations and 27 manufacturers, free to reuse under CC BY 4.0. Last verified 9 Nov 2026.

Observations CSV Observations JSON Manufacturers CSV Manufacturers JSON

How to cite

Credit “Transformer Lead Times (transformerleadtimes.com)” and link the observation page you used. Each page also names the original publisher, so you can cite both.

Transformer Lead Times (2026). Transformer lead times: dated, sourced observations. https://transformerleadtimes.com/ (CC BY 4.0)

What is in each file

One row per observation: the period it describes, transformer type and size, region, low and high weeks, the source’s own wording, any price change and its baseline, publisher, original report, source type, the verbatim quote, the verified date and every source URL. Empty cells mean the source does not state the value. Months and years stay as the source wrote them.

Observation fields

14 fields

transformer_type: The transformer type as the source names it.
size_class: Size or class as the source states it, for example Large power / GSU or Pad-mounted 3-phase.
region: Market the figure describes: US, EU, US/EU or global.
as_of: The period the number describes (YYYY, YYYY-MM or YYYY-Qn), not the publication date.
lead_time_weeks_min (weeks): Lower bound in weeks, only when the source states weeks. Equals the high value when the source gives one average.
lead_time_weeks_max (weeks): Upper bound in weeks. Empty when the source gives an open-ended figure such as 'more than 160 weeks'.
lead_time_note: The source's own wording. Month and year figures are shown as stated (months or years).
price_change_pct (%): Price change in percent; the lower bound when the source gives a range.
price_change_pct_max (%): Upper bound when the source gives a price range.
price_baseline: What the price change is measured against.
publisher: Who published the number, and through whom when cited second-hand.
original_source: The underlying report when the number is cited second-hand.
source_type: Where the source sits in our hierarchy: primary survey or index, government, association, manufacturer, utility, analyst or secondary press.
quote: The source sentence or chart value, copied exactly.

Manufacturer fields

6 fields

headquarters: Manufacturer headquarters as verified.
transformer_types: Product types as the manufacturer lists them, separated by semicolons.
us_manufacturing: true when a US plant is verified; false when none was found; empty when not yet verified.
announced_capacity_expansions: Announced capacity expansions, with the source in brackets.
parent: Parent company, when there is one.
verification_note: What we have not yet verified for this manufacturer.