Ameren

Ameren

Provides electric and natural gas utilities

Overview

Ameren provides electric and natural gas services in Illinois and Missouri, with Ameren Illinois handling distribution and Ameren Missouri generating and distributing electricity and distributing gas. It operates a regional electric grid and power generation capacity above 10,200 megawatts to serve about 2.4 million electric customers and 900,000 natural gas customers across 64,000 square miles. It ranks among the largest investor-owned utilities in the United States, distinguished by its large service area, mix of generation and distribution, and Missouri’s vertically integrated electric service. Its goal is to reliably deliver affordable energy while investing in infrastructure and grid safety to meet customers’ needs.

About Ameren

Simplify's Rating
Why Ameren is rated
B
Rated A on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Energy

Company Size

5,001-10,000

Company Stage

IPO

Headquarters

St. Louis, Missouri

Founded

1881

Simplify Jobs

Simplify's Take

What believers are saying

  • The MISO backbone project can expand Ameren's regulated asset base through 2034.
  • Smart-switch and transformer upgrades should reduce outages and support growing residential and business demand.
  • Dynamic line rating can increase throughput before new transmission projects finish.

What critics are saying

  • Construction delays at Monmouth and Webster Groves expose Ameren to public outage complaints.
  • The 765-kV project faces permitting, engineering, and cost inflation risks before 2034.
  • Customer assistance reliance signals payment stress, pressuring cash collection and bad-debt expense.

What makes Ameren unique

  • Ameren accelerates grid modernization through targeted substation and feeder upgrades across Illinois and Missouri.
  • Its transmission arm won MISO selection for two 765-kV lines, expanding regulated infrastructure exposure.
  • Ameren pilots dynamic line rating with Heimdall Power to raise capacity on congested lines.

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Funding

Total Funding

$3.8B

Above

Industry Average

Funded Over

8 Rounds

Post IPO Debt funding comparison data is currently unavailable. We're working to provide this information soon!
Post IPO Debt Funding Comparison
Coming Soon

Benefits

Health Insurance

401(k) Company Match

Paid Vacation

Paid Holidays

Parental Leave

Stock Price

Company News

AbstractCore
May 27th, 2026
Warren, Knox, Mercer county residents to get electric upgrades.

Warren, Knox, Mercer county residents to get electric upgrades. Nida Tazeen May 27, 2026, 3:35 a.m. CT Ameren Illinois is upgrading its electric infrastructure in Warren, Knox and Mercer counties. A significant part of this project involves converting the Monmouth Substation from a 4-kilovolt system to a 12-kilovolt system, according to a community announcement. The upgrade includes installing two new 22-megavolt-ampere transformers, five smart switching devices and regulator circuits in the Monmouth Substation. These enhancements are expected to improve the system's resilience and meet the growing electricity demand from residential and business customers. Additional upgrades involve increasing transformer capacity in Arpee, Seaton and Viola, installing smart switches in Aledo and enhancing the underground electrical network in downtown Galesburg. These improvements aim to reduce the frequency and duration of outages and strengthen overall system performance. Ameren Illinois seeks to prepare for future demand. "Substations do not get a lot of fanfare, but they are critical elements in a reliable, resilient energy grid," Ron Juarez, director of North Region Electric Operations at Ameren Illinois, said, according to the announcement. "With these enhancements, Ameren Illinois is taking proactive steps to meet today's demand and prepare our system to accommodate the future needs of our electric customers. We're excited to bring these benefits to the region." The enhancements to the substations and underground network are expected to be completed and in service by the beginning of September. This story was created by reporter Nida Tazeen,[email protected], with the assistance of Artificial Intelligence (AI). Journalists were involved in every step of the information gathering, review, editing and publishing process. Learn more atcm.usatoday.com/ethical-conduct. Deal of the Day Recommendations are independently chosen by its editors. Purchases you make through its links may earn The Times Record Company a commission.

PowerForwardMO
May 15th, 2026
LIHEAP and other energy assistance funds available for Ameren Missouri customers.

LIHEAP and other energy assistance funds available for Ameren Missouri customers. Ameren Missouri offers energy assistance programs year-round; LIHEAP, annual EA and winter ECIP applications due May 31 Ameren Missouri reminds its customers that energy assistance is available through a variety of programs, including Missouri's Low Income Home Energy Assistance program. Interested customers can apply even if their bill is not past due. While Ameren Missouri's programs are available year-round, the deadline to apply for LIHEAP's annual Energy Assistance (EA) program and the Winter Emergency Crisis Intervention Program (ECIP) through the Missouri Department of Social Services is May 31. Ameren Missouri partners with community action agencies, such as Community Action Agency of St. Louis County (CAASTLC) Inc., to help customers apply for LIHEAP and additional energy assistance programs. "Energy assistance is more than financial relief; it brings peace of mind," said Linda Huntspon, CEO of CAASTLC. "As we observe Community Action Month this May, we encourage families to seek support through LIHEAP and Ameren Missouri programs before funds expire. If you're unsure whether you qualify, please reach out to us. We are here to help because no one should face energy insecurity alone." Through LIHEAP's EA program, the state provides a one-time payment for either heating or cooling bills. Those in financial crisis may also qualify for the state's Winter Energy Crisis Intervention Program (ECIP) through May 31, and Summer ECIP from June 1 to Sept. 30. A disconnection notice is required for ECIP but not for the EA program. "We all need help from time to time. If you're struggling to pay your bill, we have energy assistance programs designed to help you through tough times," said Joe Solari, vice president of customer experience for Ameren. "In partnership with hundreds of community agencies, Ameren Missouri offers programs for customers needing assistance with their energy bill." For customers who need help paying their bills, Ameren Missouri offers numerous energy assistance programs and options: * Keeping Cool provides up to five bill credits of $50 from May through September for income-eligible customers including senior citizens, those with children under age 5 and individuals who have a documented chronic medical condition or disability. * The Dollar More Program can help eligible customers with up to $600/year for a past due bill. Customers can also donate to this program to help others in need. * The New Start Energy Relief program helps unhoused electric customers return to permanent housing and reestablish service. * Veterans Energy Assistance is available to active-duty military, veterans and their families, providing up to $600 to help pay past-due utility bills. For more information, call 211. * The Weatherization program helps fund improvements for qualifying homeowners and renters such as insulation and the sealing of doors and windows. * Flexible payment arrangements and payment agreements can be made with Ameren Missouri.

KBSI FOX23
Mar 30th, 2026
Ameren testing new technology to boost grid capacity and reliability.

Ameren testing new technology to boost grid capacity and reliability. FOX23 news at 9 p.m. 4 hours ago ST. LOUIS, Mo., (KBSI) - Ameren is testing new technology designed to increase the capacity and reliability of its existing transmission system as energy demand continues to grow across the Midwest. The company said it is piloting dynamic line rating (DLR) technology, which provides real-time data on weather conditions and transmission line performance. Officials said the information allows grid operators to safely move electricity more efficiently when and where it is needed. Ameren is partnering with Heimdall Power to install 30 sensor units on transmission lines, focusing on some of the system's most congested areas. The sensors collect data on factors such as temperature, wind and sunlight, which affect how much electricity a line can carry. Company officials said the technology could help increase capacity on existing infrastructure, improve reliability and reduce costs for customers. The first 15 sensors were installed in December 2025, with the remaining units expected to be deployed later this year. Ameren said future use of the technology will depend on results from the pilot program. STORM'S "BLOOD RED" SKIES- BEFORE & AFTER CNN, SHARK BAY CARAVN PARK, BUREAU OF METEOROLOGY, AUS, Bureau of Meteorology/AUS

Utility Dive
Mar 30th, 2026
Ameren begins testing dynamic line rating technology.

Ameren begins testing dynamic line rating technology. A pilot with Heimdall Power anticipates 30 sensor units deployed on some of Ameren's most congested transmission lines to monitor real-time conditions. Published March 30, 2026 Ameren's transmission arm has been working with Heimdall Power since December to install dynamic line rating technology on some of its most congested transmission lines, the utility announced Monday. Dynamic line ratings allow utilities to adjust transmission line capacities based on real-time factors such as temperature and wind. "When you look at the fast pace of increasing demand for energy in our region, this technology could help be a strong complementary tool as more robust transmission infrastructure is being built," Shawn Schukar, chairman and president of Ameren Transmission Co. of Illinois, said in a statement. "It can also help us better understand where, how and when new transmission infrastructure needs to be built," he said. ATC of Illinois develops, owns and operates rate-regulated regional electric transmission projects in the Midcontinent Independent System Operator territory. Since December, 15 Heimdall sensors have been deployed and another 15 will be rolled out this year, the utility said. Decisions about future deployments will be made "as more information is gathered through the pilot project," Ameren said. The sensors clamp directly onto transmission lines and have been deployed to "some of the most congested lines on Ameren's transmission system," the utility said. "The real time aspect could be particularly valuable on days when weather conditions are favorable. We may see the most value on cold or windy days," Robert Clausius, Ameren senior manager of transmission asset and compliance management, said in a statement. "These conditions can cool down a transmission line and allow more energy to flow through it," he said. "We should have more flexibility for safely and reliably rerouting energy to get where it needs to go." Absent real-time data on the temperature, direct sunlight, ice and wind impacting a transmission line, Ameren operates the line on conventional assumptions to ensure safety, he added. "We are building a smarter energy grid," said Clausius. "There's a real opportunity" with dynamic line technology, both for grid operations and customer savings through greater system utilization, he said.

MarketScreener
Feb 26th, 2026
Ameren prices $400M senior notes offering at 5% to refinance maturing debt

Ameren Corporation has priced a public offering of $400 million in senior notes due 2036 at 5.00% interest, sold at 99.802% of principal amount. The transaction is expected to close on 4 March 2026, subject to customary conditions. The St Louis-based utility company will use proceeds for general corporate purposes, including repaying short-term debt used to refinance its 3.65% senior notes maturing in 2026. BNY Mellon Capital Markets, J.P. Morgan Securities, RBC Capital Markets, U.S. Bancorp Investments and Wells Fargo Securities are serving as joint book-running managers. Ameren provides electricity to 2.5 million customers and natural gas to over 900,000 customers across a 64,000-square-mile area through its Ameren Missouri and Ameren Illinois subsidiaries.

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