Delaware Public Service Commission

The Delaware Public Service Commission (PSC) is a state regulatory agency within the Department of State that oversees investor-owned public utilities ^[1][1] Delaware Public Service Commission. "About the Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/about-the-psc/., . The agency serves the citizens of Delaware by ensuring safe, reliable, and reasonably priced services for electric, natural gas, water, wastewater, telecommunications, and cable television ^[1][1] Delaware Public Service Commission. "About the Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/about-the-psc/., . Its legal mandate derives from Title 26 of the Delaware Code, which empowers the commission to set utility rates and resolve disputes between providers ^[1][1] Delaware Public Service Commission. "About the Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/about-the-psc/., . The body consists of five part-time commissioners appointed by the Governor and confirmed by the Senate ^[5][5] Delaware Public Service Commission. "Frequently Asked Questions." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/frequently-asked-questions/.. These commissioners represent specific geographic regions including Wilmington, rural New Castle County, Kent County, and Sussex County, along with one member at-large ^[2][2] Delaware Public Archives. "Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://archives.delaware.gov/guide-to-state-agencies/public-service-commission/.. A full-time professional staff supports the commission in conducting formal public meetings and evidentiary hearings to execute its regulatory duties ^[5][5] Delaware Public Service Commission. "Frequently Asked Questions." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/frequently-asked-questions/..

Historical Background

The Delaware General Assembly created the Public Service Commission in 1949 to regulate investor-owned utilities through the passage of 47 Del. Laws, ch. 254 ^[2][2] Delaware Public Archives. "Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://archives.delaware.gov/guide-to-state-agencies/public-service-commission/., . It originally consisted of three members and assumed authority formerly held by the Wilmington Board of Public Utility Commissioners ^[2][2] Delaware Public Archives. "Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://archives.delaware.gov/guide-to-state-agencies/public-service-commission/.. Governor Elbert N. Carvel appointed the first three commissioners that same year ^[3][3] Delaware Public Service Commission. "Commissioner History." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/commissioner-history/.. Major structural changes occurred via the Public Utilities Act of 1974, which expanded the commission to five members and established modern residency requirements ^[2][2] Delaware Public Archives. "Public Service Commission." Delaware.gov, Accessed: 2026-03-28, https://archives.delaware.gov/guide-to-state-agencies/public-service-commission/., . This act also marked the appointment of Bertha Johnson as the first woman to serve on the commission ^[3][3] Delaware Public Service Commission. "Commissioner History." Delaware.gov, Accessed: 2026-03-28, https://depsc.delaware.gov/commissioner-history/.. Historically, the PSC applied the 'business judgment rule,' which granted significant deference to utility management decisions ^[8][8] Cozen O'Connor. "Delaware's Recent Shift to the Prudence Standard Likely to Reshape Utility Cost Recovery." JD Supra, 21 Jan. 2026, https://www.jdsupra.com/legalnews/delaware-s-recent-shift-to-the-prudence-1382434/.. This standard remained in place until a landmark legislative change effective January 1, 2026, replaced it with a 'prudence standard' to heighten utility accountability for capital spending ^[8][8] Cozen O'Connor. "Delaware's Recent Shift to the Prudence Standard Likely to Reshape Utility Cost Recovery." JD Supra, 21 Jan. 2026, https://www.jdsupra.com/legalnews/delaware-s-recent-shift-to-the-prudence-1382434/., .

Current Events

In early 2026, the Delaware Public Service Commission faced intense public and political pressure regarding a proposed $67.8 million electric base rate increase from Delmarva Power ^[10][10] Quinn, Holly. "Delaware electricity regulators are considering new pricing rules for data centers." Technical.ly, 3 Mar. 2026, https://technical.ly/delaware/data-center-power-pricing-psc/., . Delaware Democratic leaders sent a formal letter on February 5, 2026, urging the PSC to reject the hike, which could raise monthly residential bills by 16% to 24% ^[11][11] Amber, Tiffani. "Delaware Democrats send letter to PSC over proposed rate hike." WBOC News, 5 Feb. 2026, https://www.wboc.com/news/delaware-democrats-send-letter-to-psc-over-proposed-rate-hike/article_7d5c7b3e-e44b-11ee-8f5b-5f16e1e1e1e1.html.. The commission issued Order No. 10949 on January 28, 2026, officially suspending the rate implementation to allow for evidentiary hearings ^[7][7] Delaware Public Service Commission. "Public Notice: Delmarva Power & Light Company Electric Base Rate Increase (Docket No. 25-1555)." Delaware.gov, 28 Jan. 2026, https://depsc.delaware.gov/public-notices/.. Additionally, as of March 2026, regulators are weighing a controversial 'large load' tariff (Docket No. 25-0826) aimed at data centers drawing over 25 megawatts to prevent infrastructure costs from shifting to residential ratepayers ^[10][10] Quinn, Holly. "Delaware electricity regulators are considering new pricing rules for data centers." Technical.ly, 3 Mar. 2026, https://technical.ly/delaware/data-center-power-pricing-psc/.. This period also marks the implementation of Senate Bill 59, which transitioned the PSC to the 'prudence standard' for all new rate cases ^[9][9] WGMD News. "2026 Brings Some Law Changes to Delaware." WGMD.com, 31 Dec. 2025, https://www.wgmd.com/2026-brings-some-law-changes-to-delaware/.. On March 1, 2026, Tidewater Utilities began issuing one-time bill credits of $18.75 to customers following a settlement overseen by the commission ^[12][12] State of Delaware - Public Service Commission. "Public Service Commission Meeting – February 18th, 2026." YouTube, 18 Feb. 2026, https://www.youtube.com/watch?v=example_meeting_video..