In depth · Energy · Europe

ShareXLinkedIn

Transformer and blade plants have not caught up with the orders

Wind blades, transformers, and switchgear are the hardware of decarbonisation. Many of the plants that make them would be familiar to a supervisor from 1998.

The Industrial Brief · Editorial · 8 September 2026 · 7 min

The large white blade-factory building in Hull behind a security fence, under a clear blue sky
Siemens' wind-turbine blade factory at Alexandra Dock, Hull, in November 2016. Photo: Ian S / Geograph, CC BY-SA 2.0 (cropped)

A wind blade is a composite aircraft wing the length of a football pitch, made largely by hand. The energy transition depends on objects like this — blades, nacelles, HV transformers, breakers, busbars — whose factories look nothing like a semiconductor bay and very little like the software-defined plants in vendor brochures. Labour content is high. Cycle times are long. Scrap is expensive and often visible from the mezzanine.

That is not an insult. It is a map of where industrial AI and better process control would actually move the needle. A 2 percent yield gain on a blade line is a different economic event from a 2 percent gain on a phone. Grid-equipment lead times have been a bottleneck on factory interconnection; some of that is copper and grain-oriented steel. Some of it is plants that cannot add a shift because they cannot find people who will do the work.

The shortage is in the factories that make the hardware: curing ovens, winding machines, and supervisors who have a reason to stay.

Get the Monday briefing

The week in manufacturing, for people who specify and buy. Eight minutes, before the first meeting.

Subscribe

Further reading