Gas vs. electric driving costs · adjust vehicle and price period below
Why is it like this in Delaware?
Delaware's residential electricity rate of about 18.4¢/kWh has been climbing sharply. Delmarva Power raised electricity supply rates by roughly $10/month for average customers in June 2025, driven by a PJM capacity auction that cleared at prices roughly eight times higher than prior years. State legislators publicly opposed further increases but were unable to block them. Despite the sharp rate increases, electricity is still the cheaper per-mile option at the January 2026 baseline — though continued PJM-driven increases will narrow that margin further.
In the news · Delaware
Delmarva Power's electricity rates jumped roughly $10/month for average customers on June 1, 2025, driven by an 800%-higher PJM capacity auction price — narrowing the cost advantage of charging a PHEV versus filling the tank in Delaware.
Delaware legislators publicly opposed Delmarva Power's multi-part rate increase request, citing a 568% spike in PJM capacity costs being passed directly to ratepayers — context for why Delaware's electricity rate has been climbing and eroding the per-mile savings of EV-mode driving.
Delaware joined a tristate lawsuit to unlock frozen NEVI federal charging-infrastructure funds, highlighting how the state's public charging buildout has stalled — a practical barrier to PHEV owners who need to weigh whether home charging economics justify the switch from gasoline.
Curated coverage of Delaware's EV/PHEV cost, policy, and infrastructure story. External links open in a new tab.
Northeast region comparison
| State | Electric ¢/mi | Gas ¢/mi | Cheaper | Annual diff |
|---|---|---|---|---|
| Delaware | 5.0¢ | 7.7¢ | ⚡ Electric | $323/yr |
| Pennsylvania | 6.1¢ | 8.0¢ | ⚡ Electric | $224/yr |
| Maryland | 6.2¢ | 7.8¢ | ⚡ Electric | $188/yr |
| Vermont | 7.1¢ | 7.9¢ | ⚡ Electric | $97/yr |
| New Jersey | 7.0¢ | 7.3¢ | ⚡ Electric | $31/yr |
| New Hampshire | 8.0¢ | 7.4¢ | ⛽ Gas | $68/yr |
| New York | 8.6¢ | 7.8¢ | ⛽ Gas | $91/yr |
| Connecticut | 8.6¢ | 7.5¢ | ⛽ Gas | $128/yr |
| Rhode Island | 9.1¢ | 7.4¢ | ⛽ Gas | $204/yr |
| Maine | 9.3¢ | 7.6¢ | ⛽ Gas | $206/yr |
| Massachusetts | 9.4¢ | 7.6¢ | ⛽ Gas | $219/yr |