Case Study: Ameren Illinois strengthens energy efficiency portfolio performance with E Source evaluation services

Ameren Illinois manages a $3.5M energy efficiency portfolio with E Source

Ameren Illinois, a dual-fuel utility provider, faced the challenge of effectively evaluating and managing its extensive energy efficiency portfolio to serve its diverse electric, gas, and dual-fuel customers. To assess program performance and ensure compliance, they partnered with E Source for comprehensive evaluation services.

E Source implemented a full suite of evaluation services including program management, data collection, cost-effectiveness analysis, and support in program design. This solution delivered significant results, with E Source managing an annual evaluation budget of over $3.5 million and maintaining a perfect record of meeting all statutory reporting deadlines. The partnership also produced targeted studies that improved outreach to disadvantaged communities and advanced statewide energy efficiency policy.

Ameren Illinois