Maryland
Residential electricity rates · latest Apr 2026
Your rate vs. grid demand
PJM Interconnection demand · Maryland rateAmber = the grid region's average demand (GW, left). Red = the state's residential rate (¢/kWh, right). The rate line ends a couple months early because EIA reports retail data on a lag.
Homes vs. industry
Maryland · ¢/kWhWhat households pay (red) vs. large industrial users (dashed). The shaded band is the gap — the affordability story behind data-center load growth.
Most of Maryland's power runs through PJM Interconnection, where grid demand rose 8% over the same period — a signature of the always-on, data-center-driven load reshaping the grid.
EIA derives the rate as revenue ÷ electricity sold — a proxy, not a surveyed tariff. Rates rise for many reasons (fuel costs, grid upgrades, storms), not data centers alone, so this shows correlation, not causation. Note the rate is a statewide residential average while the demand is the regional grid operator's — related, but not the same geography.