Comment by applied_heat
13 hours ago
Transformers and turbines of any significance are not off the shelf parts and can have lead times of years
13 hours ago
Transformers and turbines of any significance are not off the shelf parts and can have lead times of years
> Transformers and turbines of any significance are not off the shelf parts and can have lead times of years
Bloomberg had a decent article[0] about transformers and their lead time. They're currently a bottleneck on building. It wasn't paywalled for me.
"The Covid-19 pandemic strained many supply chains, and most have recovered by now. The supply chain for transformers started experiencing troubles earlier — and it’s only worsened since. Instead of taking a few months to a year, the lead time for large transformer delivery is now three to five years. " [0]
[0] https://www.bloomberg.com/features/2025-bottlenecks-transfor...
How do they not have backups??
Enough for the entire grid? There are some amount of reserves on hand (eg drunk runs into a telephone pole), but nothing that could replace a targeted attack with the explicit goal of taking out the most vital infrastructure.
And those pole mounted transformers are tiny. The big ones require special transports and can weigh a few hundred tons. Some are so large they are best transported via boat if possible.