Ensuring Affordable and Resilient Energy Infrastructure
As Illinois faces growth and changes in the energy landscape, our commitment to serving 2.3 million customers remains steadfast. Nicor Gas has filed a request with the Illinois Commerce Commission (ICC) to increase rates, which will enable us to continue investing in resilient energy infrastructure and modern customer solutions. These efforts will enhance our ability to safely, reliably and affordably meet both current and future demands.
Supporting Critical Investments
Meeting Customer Demand
Providing dependable, resilient and affordable gas supply
Continued Investments
Maintaining and modernizing infrastructure and systems
Next generation energy
A commitment to a continued sustainable future
Find our more in our 2025 Rate Request At-A-Glance
2025 Rate Request
Investing in a Reliable and Sustainable Energy Future
Nicor Gas is modernizing its infrastructure to help ensure a reliable and affordable gas supply for
our customers. The company is also investing in clean energy solutions, such as renewable
natural gas, with the goal of achieving net-zero emissions from operations by 2050.
To support these investments, Nicor Gas has filed a proposed request for $309 million, as submitted to the ICC, which has 11 months to review.* Nicor Gas’ distribution rates remain among the lowest of any major gas utility in Illinois. If this proposed request is approved, the average residential customer would experience an increase of roughly $7.70 per month in their energy delivery charge, equating to an annual increase of approximately 9.28%, while still keeping rates among the lowest in the state.
All utilities, including Nicor Gas, must submit rate requests to the ICC for approval. Nicor
Gas delivers over three times the energy of the electric grid during peak times, with its
reliable energy delivery system costing about one-fourth that of electricity. Under the
proposed rates, the total bill for an average residential customer continues to align with the
Consumer Price Index, helping to ensure affordable, resilient energy infrastructure and
modern customer solutions.
Some proposed key upgrades and infrastructure enhancements
- Storage facilities that play a vital role in meeting demand, particularly during
extreme cold weather, helping protect against price fluctuations.
- Modernizing infrastructure and systems through targeted projects, such as the
Dubuque Line Main Replacement Project, which updates pipelines installed in 1959.
- Replacement of an aging compressor at the Lake Bloomington storage facility, helping ensure 24/7 on-demand energy during the coldest days of the year.
- Enhancing technology across our network to offer modern experiences and secure,
efficient solutions for both employees and customers
*Throughout the 11-month period, multiple parties evaluate the proposal, and the
proposed figures may be revised before the ICC reaches a final decision.
2025 Rate Request Docket
(Case Details for 25-0055)
View the public filings record for docket #25-0055 at the Illinois Commerce Commission
What Is A Rate Case?
Rate cases are formal proceedings directed by state utility commissions used to address the costs of operating and maintaining the utility system. Illinois’ investor-owned utilities must file a general rate case petition with the ICC to determine the total amount the utility is authorized to collect in customer rates and for what share of those costs each customer class is responsible. These proceedings take 11 months and allow for stakeholder participation and public comments.
What Is The ICCs Role?
The Illinois Commerce Commission (ICC), composed of appointed Commissioners, legal counsel and support staff, is responsible for regulating the state’s public utilities to ensure adequate, efficient, reliable, safe and least-cost public utility services. The ICC thoroughly evaluates rate requests to balance the interests of consumers and utilities.
