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Pepco (Maryland) MGT LV II + SOS — EV fast-charging electricity cost

Pepco MD MGT LV II + SOS is the filed rate schedule ForgeAsset models for DC fast-charging sites in Pepco territory in Maryland. Energy prices at 17.9¢/kWh–19.8¢/kWh by time of day; the demand side bills $6.39/kW of monthly peak. For one reference Supercharger site held constant across the whole library, that works out to 34.1¢/kWh per dispensed kWh — rank 47 of 96 filed tariffs (1 = least expensive).

Modeled rates

Pepco's Maryland medium general service rate for the Washington suburbs — Silver Spring, Bethesda, Rockville, Takoma Park, and the Prince George's County side — which is the class a 150-to-500-kilowatt fast-charging site is assigned to rather than elects. Energy carries a filed three-period time-of-use supply strip that resets quarterly, and the demand charge is a plain per-kilowatt charge on the month's maximum 30-minute demand with no ratchet. The demand figure sums the distribution charge, the all-months transmission maximum-demand charge, and the summer on-peak transmission charge weighted across the year; those last two bill different measured quantities, so the summed figure is the upper bound and holds exactly when the month's overall peak falls inside the weekday noon-to-8 p.m. window. Figures fold the 2.0408% gross receipts surcharge on the transmission and distribution components, the EmPOWER Maryland and multi-year-plan riders, the delivery tax surcharge, the administrative credit that returns part of the standard-offer administrative charge to delivery customers, and Maryland's 6% sales tax; the Montgomery County non-residential fuel and energy tax and the state environmental surcharge are added outside that 6% because Maryland's regulation excludes a county tax and the environmental surcharge from the taxable price. A Prince George's County site pays about 0.4 cents per kilowatt-hour less. The procurement cost adjustment folded here is the average of the three published months, June through August 2026, while the supply strip runs September through November; the September-onward adjustment is not yet posted and trues up in November. The Maryland book contains no commercial EV or fast-charging schedule — the distribution demand-charge credit rider closed to applications in 2021 and its credit term ended in 2023 — so a third-party site pays the full demand charge. A rate case is pending with no final order, a revenue-deferral recovery surcharge applies in November and December 2026 at a level not yet filed, and the supply strip resets December 1, 2026. The monthly customer charge, the tiered universal-service charge that keys off the prior year's distribution bill, and the monthly bill-stabilization adjustment are not modeled. A site whose PJM peak-load contribution reaches 600 kilowatts transfers to the hourly-priced class, a structure this model does not express. Maryland tax defaults apply on address resolve; the business-personal-property anchor in that profile is a Baltimore County rate and is editable per site.

Source: Pepco (Maryland) filed rate schedule. Rates are digit-verified against the utility's own filed sheets and update within two weeks of any revision; derivations are on the methodology page.

What the reference site pays here

Reference site: 8 Tesla V4 stalls at 235 kWh/stall/day (57,183 kWh dispensed per month), a 150kW per-stall demand assumption, the model's default time-of-use mix, and a 12% loss gross-up — identical to the full utility ranking, where this tariff sits at position 47 of 96.

The rest of the Maryland picture

The tariff is one layer. State taxes, incentives, clean-fuels programs, and the charging market shape the remainder — Tesla Supercharger ROI in Maryland covers them, and the US Supercharger Economics Map shows every US Supercharger over utility territories colored by this same effective-cost derivation.

Pepco (Maryland) MGT LV II + SOS — questions

What does Pepco (Maryland) charge for energy on MGT LV II + SOS?

The modeled rates are 17.9¢/kWh–19.8¢/kWh by time of day. At the model's default time-of-use mix (30% peak, 45% off-peak, 25% super-off-peak) that blends to 18.5¢/kWh.

Does MGT LV II + SOS carry a demand charge?

Yes: $6.39/kW of monthly peak. For a reference 8-stall site at 150 kW per stall that comes to about $7,663 per month.

What does electricity cost per kWh dispensed on this tariff?

For the reference site — 8 Tesla V4 stalls dispensing 235 kWh per stall per day, with a 12% loss gross-up — the all-in utility cost works out to 34.1¢/kWh per dispensed kWh, rank 47 of 96 tariffs in the library (1 = least expensive).

ForgeAsset is software, not investment, tax, or legal advice — outputs are model estimates from your inputs, not guarantees. Rates current as of research; verify current terms with the utility's filed schedule before committing capital.