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Delaware solar permits

Permit timelines, fees, reviews and inspections for 1 Delaware jurisdictions. Across them, the median time to a residential solar permit is 11.5 business days.

Kent County11.5 business days

Delaware utility interconnection

Utility	Approval before install	Apply via	Fee	Utility response	System size cap	Capacity map
Delmarva Power	Required	Portal	Online payment	5 days (voluntary)	110% of annual usage	Hosting capacity map

All utilities

Source: SolarTRACE, National Renewable Energy Laboratory (NREL), 2025-09-09 release. Times are medians for residential solar in the year shown. Requirements change — confirm current rules, fees and forms with the jurisdiction before you submit.