Ameren Illinois.
Ameren Illinois is the electric and natural-gas utility whose business energy-efficiency incentives and community giving programs may serve qualifying Chester-area customers and nonprofits.
Services
What this organization provides.
- Energy Incentives
- Technical Assistance
- Charitable Grants
Directory records
Programs from this organization.
Ameren Illinois Business Prescriptive Incentives
Ameren Illinois offers incentives for qualifying energy-efficient equipment and building upgrades by nonresidential customers.
Ameren Illinois Business Technical Assistance and Optimization
Ameren Illinois offers technical and optimization services, including free services and offerings with study, survey, equipment, or implementation incentives.
Ameren Illinois Charitable Grants
Ameren considers grant requests from eligible nonprofits serving communities where the company has a business presence.
Ameren Illinois Custom Energy Efficiency Incentives
Custom incentives support measured energy-saving projects that do not fit Ameren Illinois standard incentive applications.
Ameren Illinois New Construction Incentives
Ameren Illinois offers incentives and design assistance for qualifying energy-efficient commercial and multifamily construction.
Evidence
Official sources.
- Ameren Illinois Energy Efficiency Program Terms and Conditions 2026Ameren Illinois Energy Efficiency Program · accessed 2026-07-10
- Grants & Giving ProgramsAmeren · accessed 2026-07-10
- Incentives & OfferingsAmeren Illinois Energy Efficiency Program · accessed 2026-07-10