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
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 to reduce direct (Scope 1) greenhouse gas emissions from its utility operations to net zero by 2050.1
On Nov. 19, the Illinois Commerce Commission (ICC) entered an order approving a $167.8 million rate increase. The annual impact on the typical residential customer would be approximately 3.98%, or approximately $3.30 per month. This increase will help Nicor Gas meet evolving regulations, continue to modernize its system and recover inflationary costs. Even with this adjustment, Nicor Gas’ distribution rates will remain among the lowest of any major gas distribution utility in Illinois. The new rates are scheduled to go into effect Dec. 2, 2025.
All utilities, including Nicor Gas, must submit rate requests to the ICC for approval. Under the
proposed rates, the total bill for an average residential customer continues to align with the
Consumer Price Index.
1 Our ability to achieve this goal is dependent on many factors, many of which are outside our control, including load growth, energy policy and regulations, natural gas prices, customer demand for carbon-free energy, and the development and deployment of low- to no-GHG energy technologies.
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
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.
