Michael Moehn, Lenny Singh and Patrick Smith Sr. promoted to new roles

Ameren Corporation recently announced several organizational changes designed to drive consistent and continuously improving operating performance and enhance the depth of its executive leadership team, strengthening the company for the future.

The new leadership changes take effect Jan. 1, 2026.

Michael Moehn, currently senior executive vice president and chief financial officer of Ameren Corporation and chairman and president of Ameren Services, as well as interim chairman and president of Ameren Missouri, will assume the newly created role of group president for Ameren Utilities. In this role, Moehn will oversee each of Ameren's operating utilities, with the presidents of Ameren Missouri, Ameren Illinois and Ameren Transmission Company reporting to him.

Lenny Singh, currently chairman and president of Ameren Illinois, will assume the role of executive vice president and chief financial officer of Ameren Corporation and chairman and president of Ameren Services. Moehn and Singh will continue reporting to Martin J. Lyons Jr., chairman, president and chief executive officer of Ameren Corporation. Patrick Smith Sr., currently senior vice president of operations and technical services, will assume the role of chairman and president of Ameren Illinois and report to Moehn.

"This strategic rotation of responsibilities reflects Ameren's strong commitment to continuous improvement at all levels of our organization," said Martin J. Lyons Jr., chairman, president and chief executive officer of Ameren Corporation. "It is part of a deliberate process designed to consistently deliver exceptional value to our customers, the communities we serve and our shareholders, as the energy industry continues to evolve.

Moehn joined Ameren in 2000 and has held numerous senior leadership roles across the company, with responsibility for areas including nuclear and customer operations, regulatory and legislative affairs, strategy, finance, accounting, risk management and digital. Prior to his current role, he served as chairman and president of Ameren Missouri.

"We're positioning Ameren for even greater effectiveness and efficiency," said Lyons. "This enhanced structure enables us to streamline decision-making, optimize resource allocation and deliver more consistent, high-quality service to our customers. It also reinforces our commitment to operational excellence, financial discipline and strategic growth across all areas of the business."

Singh spent more than 30 years at Consolidated Edison Company of New York, where he served in a variety of roles across electric, natural gas and steam operations and shared services, before joining Ameren in 2022 as chairman and president of Ameren Illinois.

Since joining Ameren as a meter reader in 1985, Smith has served in a variety of leadership roles. In his current role, he is responsible for the oversight and support of all electric and natural gas field operations, including maintenance, engineering design, safety and training, reliability planning, dispatch operations, emergency response and construction services for Ameren Illinois.

To learn more about these leaders and others within the organization, please visit Ameren.com. 

Ameren Missouri crews installed 200 new power poles in four days

On April 2, southeast Missouri faced a historic outbreak of severe weather. The Paducah office of the National Weather Service tracked 23 tornadoes across the region in the span of just a few hours. In Delta, an EF-2 tornado destroyed homes and businesses, along with much of the town’s electrical infrastructure.

Following the storm, Ameren Missouri began working immediately alongside other first responders to support Delta's recovery. The company's response included more than 450 personnel. Damage assessments quickly revealed the tornado destroyed half of the town's electric grid.

Please click on the above picture to watch a video on Ameren Missouri's response to the Delta tornado.

Despite facing another tornado threat just days later, Ameren Missouri teams remained committed to restoring power and rebuilding the grid. In just four days, crews installed approximately 200 new power poles and replaced thousands of feet of damaged wire. 

Ameren Missouri’s Smart Energy Plan played a critical role in the rebuild, focusing on enhancing day-to-day reliability and storm resilience. Notably, several composite poles were used, providing greater strength than traditional wooden power poles and anchoring the electrical system to prevent larger outages. These modern standards not only resolved longstanding reliability issues but also positioned Delta for future growth.

Simple steps and instant savings can help families manage winter energy costs

With the holiday season in full swing, Ameren Missouri reminds customers of a few simple efficiency steps they can take to keep their celebrations bright, while helping them save money on their energy bill. ENERGY STAR® certified LED light strings use up to 75% less energy than incandescent strands, providing savings to customers while also reducing the potential for a fire. Using timers or smart plugs so lights run only from dusk through peak evening hours and turning the thermostat down a few degrees when cooking or hosting are additional ways customers can save on their bill.

Ameren Missouri reminds its customers to inspect light strands for damage prior to plugging them in, avoid overloading electrical circuits or outlets and keep decorations away from heat sources such as fireplaces and space heaters.

“Simple adjustments during the holidays can add up to real savings,” said Tony Lozano, director of efficiency and demand response at Ameren Missouri. “And you can use this same approach all year long, because there are always small ways to adjust and save on your energy bills.”

Below are five more ways to minimize energy use while keeping the holidays merry and bright:

1. Appropriate use of outdoor decorations. Plug decorations into a GFCI outlet with a weatherproof in-use cover, keep connections off the ground and shut off inflatables when idle. 

2. Batch your baking. Cook dishes back-to-back so a warm oven does double duty and use the oven light instead of opening the door. These habits help your oven use energy more efficiently.

3. Keep the Christmas tree safe. Keep the tree clear of supply and return vents, radiators and fireplaces so air circulates, the tree stays hydrated and heat isn’t wasted. It’s a small adjustment that can prevent wasted heat and save a few extra dollars on winter energy bills.

4. Cool and store food efficiently. Let hot dishes rest in shallow containers before refrigerating so your fridge doesn’t work overtime, reducing its energy use and helping keep a bit more money in your pocket by season’s end.

5. Prep for travel. Before heading out of town, set your water heater to “vacation,” lower the thermostat while you’re away, unplug nonessential electronics and indoor décor and close curtains. 

Additionally, Ameren Missouri offers several tools and incentives to help customers save on their energy bills throughout the year. Customers can find instant discounts on energy-efficient products, including smart thermostats to help reduce heating and cooling costs, by visiting amerenmissourimarketplace.com. For more information on ways to save and stay safe this holiday season, please visit ameren.com.  

Michael Moehn currently serves as Ameren's senior executive vice president and CFO. He is also the president of Ameren Services.

For nearly 25 years, Michael Moehn has focused his Ameren career around a simple principle: service to customers, communities and the employees who power the company’s work. That foundation has guided him from his first role in finance to his current position as senior executive vice president and chief financial officer.

Beginning Jan. 1, he will transition to serve as the group president of the newly created Ameren Utilities, which brings Ameren Missouri, Ameren Illinois and Ameren Transmission Company under unified leadership to strengthen coordination across the organization.

Moehn joined Ameren in 2000 and was immediately struck by the criticality of the work.

“It’s an industry that touches people every single day in some way,” he said.

He also found that the company’s culture of hard work and servant leadership reflected the values he grew up with. Roles in finance, planning, strategy and operations broadened his understanding of how interconnected the energy business is and how closely the customer experience is tied to every decision. The variety and purpose of the work continue to motivate him.

“It’s a fascinating industry,” he said.

In his new role leading Ameren Utilities, Moehn plans to continue emphasizing alignment and consistency across the operating companies. He believes customers in both Missouri and Illinois benefit when expectations and practices are clear and coordinated. Strong internal standards, he said, help teams focus on what matters most for the communities they serve.

The coming years will bring significant transformation across the energy sector. Ameren is investing in reliability and natural gas generation in the near term while studying potential new nuclear options and advancing work in batteries, customer-focused technologies and grid modernization. The scale of future investment, he said, is unlike anything the company has seen in decades.

“We’re at an inflection point that we haven’t seen in this industry for 20 years,” he said. “We have a growth opportunity in front of us over the next five to 10 years to make smart investments on behalf of our customers that will be foundational and allow the communities we serve to thrive.”

As CFO, Moehn helps position Ameren to bolster the grid with long-term investments that benefit customers while balancing affordability for customers. The company is entering a period when investment decisions carry even greater weight, since new technologies and generation resources require years of planning. That work depends on close coordination across finance, operations and regulatory teams, along with a clear understanding of how each project will affect customers over time.

“Managing our balance sheet conservatively allows us to get the lowest interest rates,” he said, “and therefore there’s greater cost savings back to customers.”

Looking ahead, he sees Ameren’s evolving workforce as central to the company’s future. The scale and complexity of the system create opportunities for employees to build diverse and long-term careers. It is not unusual for people to move between departments or across the Missouri and Illinois operations as they advance, gaining experience in engineering, finance, planning, operations, skilled trades and more. 

For Moehn, career development is most successful when employees are encouraged to explore new pathways and when leaders create the environment to support that growth.

"It's not just a job in my perspective. I think of it as a career, which is focused on the long term. Careers are a lifelong journey and a two-way street that focus on skill development and personal fulfillment." 

He also praised the work of Ameren's frontline and plant employees who keep the company's infrastructure operating safely and reliably. 

"They are the best at what they do," he said. 

As Ameren moves toward major capital investments, Moehn said his leadership approach is shaped by the need to stay focused on what truly moves the company forward. Large projects, shifting customer expectations and evolving technologies all compete for attention. He believes disciplined prioritization is essential for keeping the organization aligned and ensuring resources go to the areas that deliver the greatest long-term benefit for customers.

“If everything’s important, nothing’s important,” he said.

That philosophy is rooted in how he grew up. His parents ran a small business, and their example taught him the value of discipline and staying grounded regardless of circumstance. Those early lessons have guided him throughout his career and continue to influence how he approaches challenges and supports his teams.

“There’s just no substitute for hard work,” he said.

Family is an anchor in his life. Moehn and his wife have been married for 31 years, and he credits her high standards and grounding presence with shaping the way he approaches both work and leadership. Their son works in Wisconsin, and their daughter is completing her collegiate swimming career at the University of Pennsylvania before beginning work in investment banking. Much of their family time has been spent traveling to swim meets, something he describes as a joy to experience together.

Outside of work and family, personal well-being is another priority. Moehn is an avid runner and sees exercise as part of his leadership toolkit.

“It’s an investment in me,” he said. “It allows me to be a better person, to be a better leader.”