In the period from July 2025 to June 2026, the electricity consumption in Illinois shows a strong inclination towards low-carbon energy, with almost 68% of the total electricity coming from such sources. Of this, nuclear energy is the dominant contributor, providing close to half of the total electricity consumption. Wind and solar energy contribute 13% and about 6%, respectively, to the state's electricity makeup. In contrast, fossil fuel sources account for almost a third of the total consumption, with natural gas making up 17% and coal 15%. This significant reliance on clean energy represents a progressive move towards a more sustainable energy mix, significantly reducing reliance on polluting fossil fuels.

Is Electricity Growing in Illinois?

The data suggesting recent growth in electricity consumption in Illinois is a positive sign, reflecting an increase from 15,499 kWh per person in 2025 to 15,563 kWh per person in 2026. This growth indicates a trend towards increased electricity usage, which aligns with broader trends in electrification and technological advancement. Additionally, the generation of low-carbon electricity is also on the rise, with the latest figure of 10,581 kWh per person significantly surpassing the previous record of 10,438 kWh per person from 2025. This increase of 143 kWh per person in low-carbon generation is encouraging and demonstrates the region's commitment to advancing its clean energy infrastructure.

Suggestions

To further elevate its low-carbon electricity generation, Illinois could expand existing infrastructures like nuclear and wind energy, which have already proven to be substantial contributors. Illinois can draw lessons from regions where sustainable energy policies have successfully increased clean energy production. For instance, neighboring Iowa and South Dakota have achieved impressive wind energy integration, with wind accounting for more than 50% of their electricity generation. Similarly, France sets an example with its strong reliance on nuclear power, generating 67% of its electricity from nuclear energy. By embracing strategies that enhance nuclear and wind capabilities, Illinois can significantly bolster its sustainable energy portfolio, contributing positively to the environment and the economy.

History

Historically, Illinois has experienced fluctuations in low-carbon electricity generation. In 2024, the state saw increases in both wind and nuclear power generation, with wind contributing an additional 3.1 TWh and nuclear energy adding another 1.7 TWh. However, the following years have shown some challenges. In 2025, nuclear energy experienced a notable decline of 1.5 TWh, and although there was a slight addition from wind at 0.1 TWh, this was a year of minimal growth. By 2026, although nuclear energy again saw a decrease of 1.3 TWh, wind energy made a small yet positive gain of 1 TWh. These trends suggest a need for Illinois to focus on sustaining and growing its clean energy output to navigate future uncertainties and demands effectively. Expanding nuclear and wind sources can counter such fluctuations and secure a consistent path towards increased clean electricity.

Electricity Imports and Exports

Balance of Trade

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