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Utility companies in San Antonio are warning home builders to pace projects due to transformer shortages. Transformer manufacturers have been hit hard by the pandemic and supply chain issues, which is ultimately impacting new installations of electricity by utility companies.

One transformer is needed for every four homes. They transform high voltage in the lines to the low voltage used in homes.

Maria Garcia is vice president of supply chain at CPS Energy. She said to keep up with demand for transformers from home developers, they have increased their list of potential suppliers. They've also asked home developers to weigh transformer options.

"There's a number of transformers. There's overhead, there's pad mount. So is there an opportunity where maybe developers looking for underground, which would be the pad mount transformer, is there an opportunity to now switch it to overhead," Garcia said.

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