ComEd announced it exceeded $10 billion in Renewable Energy Credits (RECs) under contract at the end of 2025 – an investment that is helping expand access to clean energy, support lower energy costs over time, and deliver environmental benefits for customers across northern Illinois. The milestone is equivalent to 383 million megawatt-hours of new renewable energy produced in Illinois. Distributed energy resources (DER) like rooftop solar have reached 1.7 gigawatts (GW) on ComEd’s grid, which is enough to power 306,000 homes for a year. Growth accelerated in 2025 with approximately 105 million additional RECs added under contract last year, making it one of the most significant single-year expansions of renewable energy support in Illinois history.

RECs represent the environmental attributes of electricity generated from renewable energy, and the $10 billion milestone reflects the cumulative value of ComEd’s active REC contracts, which it pays out to renewable energy developers over terms of up to 20 years. These long-term commitments provide financial certainty for developers while helping bring more affordable renewable energy options to customers across northern Illinois. In Illinois, electric utilities purchase and retire RECs to comply with the state’s Renewable Portfolio Standard, which sets goals for utilities to obtain a percentage of their electricity from renewable energy sources. The Climate and Equitable Jobs Act (CEJA), passed in 2021, sets Illinois on a path to 100% clean energy by 2050 with 40% of energy coming from renewables by 2030 and 50% by 2040.