When does the Delmarva Power (Delaware) rate change take effect?

The proposed effective date is July 9, 2026, subject to DE PSC approval.

How much will my Delmarva Power (Delaware) bill change?

About $9.3 per month for a typical residential customer using 1,000 kWh. See the summary for details.

← Delmarva Power (Delaware)

Delmarva Power (Delaware) rate case — 25-01555

filed

Proposed bill impact (1,000 kWh)

$9.3/mo

Requested

$67,800,000

residential: 16.2%

Proposed effective

July 9, 2026

filed December 9, 2025

Delmarva Power's pending Delaware electric base rate case; filed Dec. 9, 2025 seeking a $67.8 million total base-rate revenue increase ($44.6 million new plus $23.2 million already collected via the DSIC). A typical non-space-heating residential bill rises about $9.30/month (16.2%). Interim rates (subject to refund) effective July 9, 2026; a decision is expected late 2026.

View the official filing → File a public comment with the DE PSC →