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Tariff data · 2026-08-26

MD · Investor Owned · serves 402 ZIP codes

Potomac Electric Power Co rate plans

2 residential plans are currently open to new customers. None of them price by hour, so shifting when you use power won’t change your bill here.

What does Potomac Electric Power Co's residential rate cost?

Potomac Electric Power Co files a single residential tariff, so there is no plan to choose between — everyone served here is on the same terms. That makes this page short on comparison and long on one question instead: what does that tariff actually do to a bill?

Priced hour by hour across a full year, a small apartment on this tariff comes to about $975 and a three-bedroom house with central air to about $1,881 — an effective 20.0¢ and 19.9¢ per kilowatt-hour once the fixed charge is spread across everything used.

With one plan and no hourly pricing, the only lever left is using less. Moving laundry or car charging to the middle of the night changes nothing here, which is worth knowing before you rearrange your evenings for no reason.

Expect the bill to swing with the weather rather than with anything you decide: the same house costs around $235 in July and $110 in February. Budget against the higher figure and the summer bill stops being a surprise.

Which plan would cost you least?

No bill upload, no sign-up. Tell us roughly what you use and what runs on electricity — we price every plan against the same household and show you the gap.

What else runs on electricity

That adds up to 7,914 kWh a year. Compare it to the total on your bill and adjust until it’s close.

Same usage, different plan

$92a year

That is the gap between the cheapest plan you could be on — Residential Apartments-Master Meter-Schedule MMA — and the priciest. Not by using less power. By being billed differently for the same power.

PlanPer yearVs best
Residential Apartments-Master Meter-Schedule MMAThe hour never matters here — only the season. Rates peak November–May.$1,462
Residential - Schedule RThe hour never matters here — only the season. Rates peak November–May.$1,554+$92

An estimate, not a quote. Supply charges move month to month, and your real usage pattern is not exactly this one. What it does show reliably is the gap between plans — both are priced off the same assumptions.

Making sense of the bill

Every plan, in detail

Hour-by-hour schedules, tier thresholds, and the tariff each one comes from.