According to a report released by the American Council on Renewable Energy (ACORE) on February 8, 2023, adding 1 GW of transmission capacity during Winter Storm Elliott could have saved electricity consumers nearly $100 million over the course of the five-day storm.[1] The report, titled The Value of Transmission During Winter Storm Elliott, analyses the benefits more transmission could have provided during Winter Storm Elliot, which caused record winter electricity demand and rolling blackouts across much of the Central and Eastern U.S. in December 2022. About 1.7 million service disruptions occurred during the peak of Winter Storm Elliott. The report found that congested power lines prevented the region from importing lower-cost electricity when energy use spiked during Winter Storm Elliott. The ACORE report also found that additional transmission into the Duke/Progress utility area in the Carolinas and the Tennessee Valley Authority (TVA) region would have yielded savings of $85 million and $95 million, respectively. In addition, a 1 GW transmission line between the Electric Reliability Council of Texas (ERCOT) and TVA would have also provided $1 billion in savings to Texans during Winter Storm Uri in February 2021.
[1] https://acore.org/wp-content/uploads/2023/02/ACORE-The-Value-of-Transmission-During-Winter-Storm-Elliott.pdf
