Ameren Corporation has 2.4 million electric and 900,000 natural gas customers, making it the leading utility company in the St. Louis area and the second-largest in the entire state of Illinois. Ameren was created in 1997 by the merger of Missouri’s Union Electric Company and the neighboring Central Illinois Public Service (CIPS) company.

“PowerCenter was vital in enabling Accenture to minimize cost and risk for Ameren, and bring this challenging project in under budget and within our allotted 11-month timeframe.”

— Eric Middleton, Senior Manager, Accenture


Business Need

Accelerate time to value from the merger of Union Electric and CIPS Inc.

Provide a single view of commercial, industrial, and residential customers.



Integrate all systems within a one-year timeframe.

Reduce development cost over COBOL hand-coding.

Access nearly 10 business system interfaces and mainframe data.

Deliver scalability and performance for large 100GB+ data volumes.

Create a reusable, automated system for future projects.


Solutions & Results

Reduced data migration costs by 30%.

Established repeatable, automated processes for future data migrations.

Significantly improved data integrity, reliability and quality.

Improved customer service, marketing and field operations.


Products & Services

Informatica PowerCenter

Accesses, integrates and delivers any and all data quickly and cost-effectively, without hand coding.

Success Stories

Southwest Power Pool

The Informatica Platform and data replication solution reduced typical analysis time from one day to 20 minutes.

Thames Water Utilities Ltd.

Improved decision-making by facilitating fast, accurate reporting with PowerCenter.

BC Hydro

Canadian energy provider uses Informatica Data Replication to create real-time insight into energy consumption patterns and help customers manage their electricity use.