Dominion Energy South Carolina Seeks Approval for Comprehensive Electric Rate Case Settlements
Dominion Energy South Carolina, Inc. (DESC), a wholly owned subsidiary of Dominion Energy, has submitted a series of comprehensive settlement agreements to the Public Service Commission of South Carolina (PSC) as part of its ongoing general electric rate case. The agreements, developed in collaboration with a broad range of stakeholders and intervening parties, aim to balance the company’s need to recover rising infrastructure and operational costs while minimizing the impact on customers.
The settlements represent months of negotiations between DESC and consumer advocates, regulatory agencies, environmental groups, commercial customers, and federal representatives. With the exception of one party involved in the proceedings, all other parties either signed, supported, or chose not to oppose the proposed agreements, signaling broad consensus around the framework presented to state regulators.
The utility’s filing comes at a time of rapid customer growth and increasing energy demand across South Carolina. Since 2023, DESC has added approximately 23,000 new electric customers to its service territory. To accommodate that growth and maintain system reliability, the company said it has invested approximately $1.4 billion into its electric infrastructure over the past two years. These investments have included upgrades to transmission and distribution systems, grid modernization initiatives, reliability enhancements, and other operational improvements designed to ensure safe and dependable electric service for homes and businesses.
DESC stated that the proposed settlements are intended to support continued investment in South Carolina’s expanding electric system while also responding to concerns raised by customers and stakeholders regarding affordability. The company emphasized that the agreements reflect a compromise that significantly lowers the original rate increase request filed earlier this year.
Under the proposed settlement terms, residential customers using 1,000 kilowatt-hours of electricity per month would see their average monthly bills increase by slightly less than $12 beginning July 1. The proposed increase represents a 7.62% adjustment. According to DESC, even with the increase, residential electric rates in South Carolina would remain below the national average.
The company originally requested a revenue increase of approximately $322 million when it filed the rate case in January. However, the negotiated settlements reduce the proposed increase to $207 million, representing a reduction of roughly 36% from the initial request. The revised figure reflects concessions made during negotiations with regulatory and consumer advocacy groups.
A significant portion of the settlements is focused on direct customer assistance measures. DESC shareholders would fund a total of $6 million in customer support initiatives if the agreements are approved by the PSC. The assistance package includes a one-time $3 million refund that would be returned to residential customers through bill credits later this year. In addition, the company committed to providing $1 million annually for the next three years to support payment assistance programs for low-income households and to help fund weatherization projects aimed at improving household energy efficiency.
Company officials said these programs are designed to provide targeted relief to customers who may face financial challenges due to higher energy costs. Weatherization efforts supported through the program could include insulation upgrades, efficiency improvements, and other measures intended to reduce energy consumption and lower utility bills over time.
The settlements also address several financial and regulatory parameters central to the rate case. Among the agreed terms is an authorized return on equity (ROE) of 9.99%, which represents the profit margin regulators would allow the utility to earn on investments made in its electric system. The proposed agreements also establish a regulatory capital structure equity component of 53.52%.
DESC said these financial provisions are necessary to maintain the utility’s ability to attract investment capital needed for long-term infrastructure improvements and continued service reliability. Utilities commonly rely on regulatory approval of such metrics to secure financing for large-scale energy projects and grid upgrades.
The PSC is scheduled to begin hearings on the proposed settlements on May 12. During the hearings, DESC and supporting parties will present evidence and testimony explaining the rationale behind the agreements and the expected impacts on customers and the state’s energy system. Following the review process, the PSC will determine whether to approve, modify, or reject the settlements.
DESC indicated that there would be no change to NYSEexisting financial guidance as a result of the settlements.
The wide range of participating stakeholders reflects the broad significance of the case for South Carolina’s energy future. Parties involved in the settlement discussions include the South Carolina Office of Regulatory Staff, the South Carolina Department of Consumer Affairs, the South Carolina Energy Users Committee, and business advocate Frank Knapp Jr.
Environmental and clean energy organizations also participated in negotiations, including Southern Alliance for Clean Energy, South Carolina Coastal Conservation League, Vote Solar, and Sierra Club. Their involvement highlights the growing focus on sustainability, clean energy development, and consumer protections within utility regulatory proceedings.
Several major commercial and industrial energy users also took part in the negotiations, including Google, Walmart, and CMC Steel South Carolina. Additionally, AARP and representatives from the U.S. Department of Defense and other federal executive agencies participated in the process, reflecting concerns about energy affordability, reliability, and long-term infrastructure planning.
The proposed settlements arrive amid broader industry trends affecting utilities across the United States. Electric utilities are facing rising costs associated with grid modernization, severe weather resilience, cybersecurity upgrades, renewable energy integration, and increasing electricity demand from population growth and economic development. Many utilities are also investing heavily in cleaner generation resources and transmission infrastructure to support long-term energy transition goals.
South Carolina, in particular, has experienced significant industrial expansion and population growth in recent years, contributing to higher electricity demand. Utilities operating in the state are under increasing pressure to maintain reliable service while balancing affordability and environmental priorities.
DESC officials described the settlement agreements as an effort to strike that balance by reducing the requested revenue increase while continuing to support investments in system reliability and customer service. The company noted that maintaining strong operational performance is critical as customer demand continues to rise and energy infrastructure requirements become more complex.
The PSC’s final decision on the settlements will play a key role in determining how DESC proceeds with future investments and customer programs. If approved, the agreements would establish the framework for cost recovery, customer assistance initiatives, and financial operations moving forward.
The hearings beginning May 12 are expected to provide regulators with detailed insight into the negotiated terms and the positions of the various stakeholders involved. Following the review process, the PSC will issue its final ruling and determine any approved adjustments to customer rates.
Source Link: https://www.businesswire.com/
