Dominion Energy South Carolina Awarded $27.4 Million Army Power Contract Boost
The Cayce, South Carolina utility received a $27.4 million modification to a 50-year Army energy supply deal, its largest federal award ever, to fold in state-approved tariff rate changes running through 2069.
CAYCE, SOUTH CAROLINA — Dominion Energy South Carolina Inc., the Cayce-based utility that serves central and western South Carolina, received an estimated $27.4 million modification to reset rates on a 50-year Army power supply deal, as announced on war.gov.
The adjustment (P00073) revises tariff rates on a 50-year base contract that carries no option periods and runs to a performance completion date of Nov. 18, 2069, according to war.gov. The Defense Logistics Agency Energy at Fort Belvoir, Virginia, funded the award with fiscal 2026 through 2070 Army operations and maintenance dollars.
The South Carolina Public Service Commission authorized the tariff rate changes that the modification incorporates, tying the federal contract to the same rate structure that governs the utility’s civilian customers. Dominion Energy provides electric or natural gas service across a 22,000-square-mile territory in central, southern and western South Carolina, according to greatersummerville.org. The utility is a subsidiary of Dominion Energy, Inc., the Richmond, Virginia power company that reported $16.5 billion in 2025 revenue and serves more than 5 million retail energy customers, according to wikipedia.org.
The modification carries clear stakes for both sides. Army installations gain rate certainty on long-term power supply, while Dominion locks in a decades-long federal customer whose payments now track state-sanctioned tariffs. Ratepayers and the Public Service Commission set the terms that flow through to the government, meaning the contract rises or falls with the same rate decisions that shape household bills.
The award ranks as the largest federal contract ever handed to Dominion Energy South Carolina Inc., topping a prior record of $25,222,626, according to firestore contract records. It is the company’s first Department of Defense contract of 2026 and the 12th such award in South Carolina this year. Against the wider Defense Logistics Agency portfolio, the sum sits near the low end, well below the agency’s 2026 year-to-date maximum of $1.5 billion.
For the average reader, the deal shows how military bases buy electricity through the same regulated utilities that power neighboring homes. Rate changes approved for civilian customers can travel straight into federal contracts, linking Pentagon spending to state utility decisions. Some South Carolina customers reported unusually high power bills in past cycles, according to wltx.com, underscoring how tariff shifts ripple across every class of user.
Long-term energy supply modifications like this one have happened before. The Defense Logistics Agency Energy routinely amends multi-decade utility contracts to absorb approved rate adjustments, a mechanism that keeps federal payments aligned with commission rulings rather than requiring a fresh bid.
The South Carolina Public Service Commission remains the next decision-maker whose rulings will govern future rate adjustments under the contract. A date for the next tariff decision affecting the agreement has not been announced.
Utility mergers have reshaped who powers South Carolina before. Dominion Energy completed its acquisition of SCANA Corporation in January 2019, absorbing the state utility after SCANA’s role in the abandoned V.C. Summer nuclear expansion, according to wikipedia.org. Dominion, whose corporate roots trace to the 1909 founding of the Virginia Railway & Power Company, folded the South Carolina operations into a portfolio spanning 27,000 megawatts of generation, according to wikipedia.org. That takeover left the Richmond company holding the federal supply contracts now serving the Army.
This contract represents the 1st contract awarded to Dominion Energy South Carolina Inc., in 2026, bringing the company’s total contract value for the year to $27,448,885. It is also the 12th Department of Defense contract awarded in South Carolina during 2026. This is the largest contract ever awarded to Dominion Energy South Carolina Inc., surpassing the company’s previous record of $25,222,626, and it is notable within the Defense Logistics Agency portfolio. Specifically, it falls between the 2026 Defense Logistics Agency portfolio’s year-to-date minimum of $9,000,000 and maximum of $1,525,000,000. Overall, this award was announced among 8 Department of Defense contracts issued nationwide on August 3, 2026.
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