Building Electricity Bridges: The Critical Role of High-Voltage Direct Current Lines
- Oct 2, 2025
- 1 min read
How supply chain bottlenecks and long lead times threaten U.S. HVDC deployment.
Demand for HVDC components (transformers, cables, converter stations) in the U.S. is outstripping supply. Factories are at capacity, lead times have doubled, and financing risk increases when delivery schedules slip.
Transformer lead times have doubled to 120+ weeks.
Large CAPEX and regulatory uncertainty deter investors when projects risk overruns.
Technical/logistical challenges: siting, converter station build, manufacturing capacity.
Bidders prioritize “strategic” customers when factories are backlogged.
“The fundamental challenges in securing financing for long-distance HVDC transmission lines are easy to identify: large upfront costs; lengthy development timelines; regulatory complexity and uncertainty …”
“Utilities’ lead time for procuring new transformers has doubled to 120 weeks or more in recent years.”
CONCLUSION
The article captures how the supply chain is now the choke point for HVDC in the U.S. We can treat these warnings as marching orders: diversify suppliers, plan for lead times, and build domestic manufacturing partnerships.
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