From September 2025 through August 2026, Delaware relied on net electricity imports for about 57% of its consumption—more than half. Fossil generation supplied roughly 39%, mainly gas at about 37%, with oil contributing around 1%. Locally generated low-carbon electricity accounted for just 4% of consumption, predominantly solar at about 3.6%. Solar was split almost evenly between behind-the-meter systems, such as rooftop panels, and utility-scale installations. The data do not identify the sources of imported electricity, so imports cannot be classified here as either fossil or low-carbon.

Is Electricity Growing in Delaware?

Delaware’s electricity consumption per person is not currently growing: the latest 2026 figure was about 12,200 kWh, down 78 kWh, or roughly 0.6%, from the 2025 record. Low-carbon generation per person, however, reached a new high of 491 kWh, rising by 63 kWh—about 15%—above its previous record in 2025. That clean electricity growth is encouraging, although the slight decline in consumption per person does not establish whether total consumption fell. Expanding clean electricity supply remains important to support electrification and growing demand from AI.

Suggestions

Delaware can increase low-carbon generation by expanding rooftop and utility-scale solar, developing suitable wind projects, and considering new nuclear generation alongside regional cooperation. Nearby examples are especially useful: 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. These regions demonstrate nuclear’s substantial role in clean electricity supply. For solar, the US state of California generates about 30% of its electricity from sunlight, while the US state of Nevada reaches roughly a third. Denmark, where wind provides 58% of generation, offers another useful example for wind development. Learning from these places could help Delaware expand its own clean generation and reduce reliance on fossil electricity, cutting climate-warming emissions and air pollution.

History

The supplied historical data show no year-to-year change in either wind or biofuel electricity generation in Delaware during 2024, 2025, and 2026: every listed change was zero TWh. This indicates stagnation in those two low-carbon sources over the period, rather than evidence that their generation levels were zero. Wind’s lack of growth is disappointing given the need for more clean electricity. These records contain no historical changes for solar or nuclear, so they cannot establish the full trajectory of Delaware’s low-carbon generation.

Electricity Imports and Exports

Balance of Trade

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