The shortage of distribution system transformers is a relatively new issue and is separate from a longer-standing shortage of large bulk power system transformers. Both, however, are a threat to grid security and are driving up costs, say experts.
The cost of large transformers is up 20% to 50% since 2020, said Grid Assurance CEO Dave Rupert. The company stockpiles bulk power system equipment for subscribers, or for sale to nonsubscribers. Time to procure equipment has grown to 20 to 39 months from 16 to 20 months a year ago, Rupert said.
