From July 2025 through June 2026, Delaware relied on net imports for more than half of its electricity consumption—about 56%. Locally generated fossil electricity supplied roughly 38%, overwhelmingly from gas, which alone accounted for 37%. Low-carbon electricity supplied just under 4%, with solar contributing about 3.4%: roughly 1.8% from behind-the-meter installations and 1.6% from utility-scale facilities. Imports are reported separately, so these figures do not establish how much imported electricity was clean or fossil-based.

Is Electricity Growing in Delaware?

Delaware’s latest electricity consumption per person was essentially flat rather than clearly growing: the 2026 figure of about 12,200 kWh was just 25 kWh below the record set in 2024, a difference of roughly 0.2%. This comparison with the historic peak does not establish the change from 2025. Low-carbon generation, however, reached a new record of 455 kWh per person, up 35 kWh—or about 8%—from its previous record in 2025. That clean-electricity growth is encouraging, but stronger overall electricity supply growth will be important as electrification and AI increase future demand.

Suggestions

Delaware can expand clean electricity by accelerating rooftop and utility-scale solar while considering new nuclear generation and regional nuclear partnerships. Nearby examples are particularly relevant: nuclear supplies about a third of electricity generation in the US state of New Jersey, 31% in the US state of Pennsylvania, and 22% in the US state of Maryland. For solar, the US state of Maine reaches 18%, offering a useful example beyond the sunniest regions, while the US states of California and Nevada reach roughly a third. Wind can complement these sources: the United Kingdom generates about 30% of its electricity from wind, providing a coastal reference worth studying. Together, solar, nuclear, and wind could strengthen Delaware’s low-carbon supply and displace fossil generation associated with climate change and air pollution.

History

The supplied historical figures show no recorded year-to-year change in electricity generation from either biofuels or wind during 2024–2026: both sources registered changes of 0 TWh in each year. That indicates stagnation in these reported categories, not necessarily an absence of generation. The history provided contains no solar or nuclear figures, so it cannot explain the full development of Delaware’s low-carbon electricity supply or identify which source drove the latest increase. The recent clean-generation record is welcome, but sustained expansion—especially in solar and nuclear—would build stronger momentum.

Electricity Imports and Exports

Balance of Trade

* 12M = Last 12 months (Jul 2025 – Jun 2026) — a rolling 12-month period, not a calendar year.