Updated: March 2026
Commercial rate guide for Washington Gas — Washington D.C., northern Virginia (Arlington, Fairfax, Alexandria), and suburban Maryland (Montgomery, Prince George's counties). Subsidiary of AltaGas Ltd.
Commercial non-heating (CNH) and commercial heating (CH) rate schedules. Purchased gas charge (PGC) for commodity pass-through. Revenue normalization adjustment (RNA). Separate tariffs by jurisdiction (DC, MD, VA).
Rising
6.7% distribution rate increase in D.C. effective January 2026; 5.9% increase in
6.7% distribution rate increase in D.C. effective January 2026; 5.9% increase in Virginia effective March 2026; 5.2% increase in Maryland effective April 2026
Property managers with Washington Gas accounts frequently encounter these billing challenges:
Three-jurisdiction billing complexity (DC, MD, VA rates differ)
Purchased gas charge volatility from wholesale market swings
Revenue normalization adjustment creating quarterly bill variability
Multi-property portfolio management across three jurisdictions
Estimated meter reads in dense urban environments
The utility is the sole provider in this service territory.
Gas distribution is regulated in all three Washington Gas jurisdictions. DC PSC, MD PSC, and VA SCC each regulate rates independently. Limited competitive gas supply options in Virginia. No supply choice in DC or MD.
Climate change compliance cost recovery under DC PSC review; accelerated pipe replacement surcharge petition pending in Virginia SCC
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