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Delmarva Power (Maryland) rates

Delmarva Power has 3 residential plans modeled here. For a typical Maryland home using 945 kWh a month, the cheapest plan open to any household is R, at about $225 a month.

Investor-owned 186,368 residential customers (EIA-861, 2024) Tariffs checked September 28, 2026

Typical all-in priceR

23.8¢/kWh
R$225/mo
R-TOU-ND$226/mo
R-PIV$231/mo

Prices assume Delmarva's Standard Offer Service supply (Maryland retail choice).

Residential plans

PlanTypeFixed/moJuly pricesJanuary pricesJuly weekday windows
R
Residential Service
Flat $9.75 22.3¢ all hours 23.1¢ all hours None
R-TOU-ND
Optional Residential Time of Use Non Demand
Time-of-use $9.75 Off-peak 21.1¢ · Peak 26.7¢ Off-peak 21.9¢ · Peak 27.5¢ Peak 2 pm–7 pm
R-PIV
Residential With Plug-In Vehicle Charging Service
Time-of-useEV $9.75 Off-peak 19.2¢ · Peak 30.5¢ Off-peak 19.4¢ · Peak 37.2¢ Peak noon–8 pm

R-TOU-ND: price by hour

July weekday. Summer pricing Jun–Sep; winter Oct–May.

Off-peakPeak
21.1¢26.7¢21.1¢12a3a6a9a12p3p6p9p12a

R-PIV: price by hour

July weekday. Summer pricing Jun–Sep; winter Oct–May.

Off-peakPeak
19.2¢30.5¢19.2¢12a3a6a9a12p3p6p9p12a

Delmarva Power peak hours and cheapest times

What are Delmarva Power’s peak hours?

It depends on the plan. R-TOU-ND: Peak 2 pm–7 pm, on weekdays, in summer (in winter: Peak 6 am–9 am, Peak 5 pm–9 pm); weekends: off-peak all day. R-PIV: Peak noon–8 pm, on weekdays, all year; weekends: off-peak all day. Hours are local clock time.

When is electricity cheapest on Delmarva Power?

On summer weekdays the lowest price is R-TOU-ND: 7 pm–2 pm next day at 21.1¢/kWh, against 26.7¢ at the peak; R-PIV: 8 pm–noon next day at 19.2¢/kWh, against 30.5¢ at the peak. R charges the same price at every hour.

Which Delmarva Power plan is cheapest?

For a typical Maryland home using 945 kWh a month, R at about $225 a month (23.8¢/kWh all-in, before taxes). With an EV charged at its cheapest hour, R-PIV gives the lowest total.

Charging an EV on Delmarva Power

1,000 miles a month in a Tesla Model Y Long Range AWD (275 kWh from the wall, EPA 27.5 kWh/100 mi) at 7.2 kW, added to a typical Maryland home’s use, on each plan’s cheapest start hour versus plugging in at 6 pm. Averaged over the year.

PlanBest startCharging, best startCharging from 6 pmWhole bill with EV
RAny$63/mo$63/mo$288/mo
R-TOU-ND12 am$60/mo$70/mo$286/mo
R-PIV12 am$53/mo$84/mo$284/mo

With an EV charged at its best hour, the cheapest plan overall is R-PIV. Compare plans on your own usage.

Cost to charge each EV on Delmarva Power R-PIV

1,000 miles a month at 7.2 kW, starting at 12 am, the plan’s cheapest hour, added to a typical Maryland home’s bill. Full charge: the EPA range, at the plan’s lowest price (19.2¢/kWh). EPA efficiency, from the wall.

ModelkWh/100 mi1,000 mi a monthFull charge
Lucid Air Pure (2027)23.1$45/mo$18.62
Tesla Model Y Standard RWD (2026)24.3$47/mo$14.97
Tesla Model 3 Standard RWD (2026)24.3$47/mo$14.97
Tesla Model 3 Premium RWD (2026)24.6$48/mo$17.13
Toyota bZ (2027)25.5$49/mo$15.36
Hyundai Ioniq 6 RWD (2025)26$50/mo$17.06
Tesla Model S (2026)27.1$52/mo$21.32
Tesla Model Y Long Range AWD (2026)27.5$53/mo$17.26
Nissan Leaf 75 kWh (2026)27.8$54/mo$16.16
Chevrolet Bolt (2027)28.2$55/mo$14.18
BMW i4 eDrive40 (2026)28.5$55/mo$18.21
Kia EV3 Long Range FWD (2027)29$56/mo$17.86
Volvo EX30 Single Motor (2026)29.2$56/mo$14.62
Kia EV6 Long Range RWD (2026)29.6$57/mo$18.12
Volkswagen ID.4 (2026)29.8$58/mo$16.64
Hyundai Ioniq 5 RWD (2027)30$58/mo$18.31
Ford Mustang Mach-E RWD Extended Range (2026)30.7$59/mo$18.85
Chevrolet Equinox EV FWD (2027)31.1$60/mo$19.04
Tesla Model X (2026)32.2$62/mo$21.75
Chevrolet Blazer EV FWD (2027)32.3$62/mo$19.34
Honda Prologue FWD (2026)32.5$63/mo$19.21
Nissan Ariya FWD 87 kWh (2026)34.4$67/mo$19.08
Cadillac Lyriq RWD (2027)36.8$71/mo$23.02
Hyundai Ioniq 9 AWD (2027)38$74/mo$23.33
Kia EV9 Long Range RWD (2026)38$74/mo$22.24
Tesla Cybertruck AWD (2026)42.9$83/mo$26.75
Rivian R1S Premium (2027)42.9$83/mo$24.70
Rivian R1T Premium (2027)42.9$83/mo$24.70
Chevrolet Silverado EV Extended Range WT (2026)47.8$92/mo$38.89
Ford F-150 Lightning Extended Range (2025)47.9$93/mo$29.41

How Delmarva Power’s plans work

R (Residential Service). One price per kWh at every hour: 22.3¢ in July and 23.1¢ in January. Shifting use to other hours changes nothing on this plan; using less is the only lever. Fixed charge: $9.75 a month.

R-TOU-ND (Optional Residential Time of Use Non Demand). Peak 2 pm–7 pm on July weekdays; 5 of 24 hours carry the top price of 26.7¢. The cheapest July weekday hour costs 21.1¢, so moving 1 kWh out of the top hours saves 5.6¢. January weekdays range from 21.9¢ to 27.5¢. Summer pricing applies Jun–Sep; winter pricing Oct–May. Weekends differ: off-peak all day. Fixed charge: $9.75 a month.

R-PIV (Residential With Plug-In Vehicle Charging Service). Peak noon–8 pm on July weekdays; 8 of 24 hours carry the top price of 30.5¢. The cheapest July weekday hour costs 19.2¢, so moving 1 kWh out of the top hours saves 11.3¢. January weekdays range from 19.4¢ to 37.2¢. Summer pricing applies Jun–Sep; winter pricing Oct–May. Weekends differ: off-peak all day. Fixed charge: $9.75 a month.

Prices on this page are all-in per kWh, before taxes: base rates, supply and every per-kWh rider in the utility’s current tariff sheets. Your bill shows them as separate lines, and riders can change between tariff revisions.

As a cross-check, Delmarva Power billed its residential customers an average of 20.22¢ per kWh in 2024 (revenue ÷ sales, EIA-861). A plan taken from URDB is shown only if its all-in price is consistent with that figure, adjusted for Maryland’s price change since.

Sources for each plan

PlanEffectiveSeasonsSolar exportsSource and status
R
Transcribed from the utility’s tariff
September 1, 2026 Summer pricing Jun–Sep; winter Oct–May Net Metering Checked September 28, 2026
Delmarva Power Maryland Electric Tariff P.S.C. Md. No. 12 (update eff. Sept 1, 2026): Leaves 45, 46, 46b (monthly rates R, R-TOU-ND, R-PIV), 57-60c, Riders USP, SOS, AC, BSA, E-MD, DRS, GRC, MYP, RRC · Delmarva MD Procurement Cost Adjustment, rates effective June 1, 2026 (Sep-26 residential value) · Delmarva MD Bill Stabilization Adjustment, rates effective 2026-2027 (Sep-26 R value) · Delmarva MD Administrative Credit, rates effective June 1, 2026 · Delmarva MD Schedule R 12-month trailing average supply rate posting (Sept 2026 monthly supply rate 0.1344258) · Delmarva MD sample bill explainer 2026 (bill line items: Std Offer Svc/Trans, PCA, EmPOWER, Admin Cr, Franchise Tax, Environmental Surcharge; no gross receipts line) · Delmarva MD proposed tariff leaves filed Aug 21, 2026 (Oct 1, 2026 SOS administrative charge true-up, pending)
R-TOU-ND
Transcribed from the utility’s tariff
September 1, 2026 Summer pricing Jun–Sep; winter Oct–May Net Metering Checked September 28, 2026
Delmarva Power Maryland Electric Tariff P.S.C. Md. No. 12 (update eff. Sept 1, 2026): Leaves 45, 46, 46b (monthly rates R, R-TOU-ND, R-PIV), 57-60c, Riders USP, SOS, AC, BSA, E-MD, DRS, GRC, MYP, RRC · Delmarva MD Procurement Cost Adjustment, rates effective June 1, 2026 (Sep-26 residential value) · Delmarva MD Bill Stabilization Adjustment, rates effective 2026-2027 (Sep-26 R value) · Delmarva MD Administrative Credit, rates effective June 1, 2026 · Delmarva MD Schedule R 12-month trailing average supply rate posting (Sept 2026 monthly supply rate 0.1344258) · Delmarva MD sample bill explainer 2026 (bill line items: Std Offer Svc/Trans, PCA, EmPOWER, Admin Cr, Franchise Tax, Environmental Surcharge; no gross receipts line) · Delmarva MD proposed tariff leaves filed Aug 21, 2026 (Oct 1, 2026 SOS administrative charge true-up, pending)
R-PIV
Transcribed from the utility’s tariff
September 1, 2026 Summer pricing Jun–Sep; winter Oct–May Net Metering Checked September 28, 2026
Delmarva Power Maryland Electric Tariff P.S.C. Md. No. 12 (update eff. Sept 1, 2026): Leaves 45, 46, 46b (monthly rates R, R-TOU-ND, R-PIV), 57-60c, Riders USP, SOS, AC, BSA, E-MD, DRS, GRC, MYP, RRC · Delmarva MD Procurement Cost Adjustment, rates effective June 1, 2026 (Sep-26 residential value) · Delmarva MD Bill Stabilization Adjustment, rates effective 2026-2027 (Sep-26 R value) · Delmarva MD Administrative Credit, rates effective June 1, 2026 · Delmarva MD Schedule R 12-month trailing average supply rate posting (Sept 2026 monthly supply rate 0.1344258) · Delmarva MD sample bill explainer 2026 (bill line items: Std Offer Svc/Trans, PCA, EmPOWER, Admin Cr, Franchise Tax, Environmental Surcharge; no gross receipts line) · Delmarva MD proposed tariff leaves filed Aug 21, 2026 (Oct 1, 2026 SOS administrative charge true-up, pending)

Plans marked “Checked” were transcribed from the utility’s current tariff and rider sheets, all charges included, and are re-checked on the date shown in each file. Other plans come from the OpenEI U.S. Utility Rate Database (CC BY 4.0) and have not yet been checked line by line against the utility’s tariff. Always confirm the current rates on your utility’s website before switching plans.

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